English — Forum #723 (Page 507/642)

1. Domestic mass flow meter manufacturers - HCBBS Forum
2. Calculation principle for the maximum spacing of reinforcement columns in rectangular containers - HCBBS Forum
3. How long will it take for the newly built domestic sewage treatment plant to meet the ammonia nitrogen standards during its commissioning in the area around Beijing in November? - HCBBS Forum
4. Working overtime for National Day. Environmental Protection Daily Question 10.1: Participate for a prize; additional rewards for correct answers - HCBBS Forum
5. 【Daily Question No. 24】September 28, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
6. The problem of acidic water in hydrogen production - HCBBS Forum
7. Is there anyone who does pipeline design? - HCBBS Forum
8. Complete replacement of the pressure vessel - HCBBS Forum
9. Questions regarding the wiring of explosion-proof motors - HCBBS Forum
10. 【Daily Question】Chemical Engineering Principles 190: Tray Loading Performance Diagram (October 2) - HCBBS Forum
11. Can SYT5037-2012 spiral pipes be used in steam process pipelines with a working pressure of 1.6 MPa and temperatures below 300 degrees Celsius? - HCBBS Forum
12. What does “acidity + alkalinity” represent in the acid consumption calculation formula? - HCBBS Forum
13. 【Alkylation】Factors affecting the dry point of alkylated oils - HCBBS Forum
14. One post per day on occupational health - HCBBS Forum
15. Question 52 on boiler foundations, October 5: (A certain score will be given to the top 40) - HCBBS Forum
16. When starting up a liquid-liquid extraction column, which phase is introduced first: the continuous phase or the dispersed phase? - HCBBS Forum
17. What is the hot start of a circulating fluidized bed boiler? - HCBBS Forum
18. How to detect the tilt of a truck crane and methods for correction - HCBBS Forum
19. What valves are used at the inlet and outlet of the new hydrogen hydrogenation unit and the recycled hydrogen compressor? - HCBBS Forum
20. Zeroing of gauge pressure transmitter - HCBBS Forum
21. How is a safety culture formed? - HCBBS Forum
22. What are the structural features of the stripper lining in a urea plant? - HCBBS Forum
23. The function of steam traps (III) - HCBBS Forum
24. Who has academic materials on natural gas-based hydrogen production converters? - HCBBS Forum
25. The suction check valve of the LG25II screw compressor produces abnormal noises during shutdown and load application – how to resolve this? - HCBBS Forum
26. I would like to know what factors affect the exhaust frequency of diaphragm pumps? - HCBBS Forum
27. What method should be used for steam pressure reduction? - HCBBS Forum
28. May I ask, when saturated steam at 0.4 MPA (gauge pressure) is reduced to 0.05 MPA, by how many degrees does the temperature of the steam increase? - HCBBS Forum
29. Steam production system - HCBBS Forum
30. Help... How is hydrogen sulfide formed in gas? - HCBBS Forum
31. One question per day - HCBBS Forum
32. Thermal protection of motors - HCBBS Forum
33. Fischer-Tropsch synthesis reactor - HCBBS Forum
34. I would like to ask about the methods for treating sodium hydroxide wastewater - HCBBS Forum
35. 【Daily Question】Chemical Engineering Principles 183: Constant Volumetric Flow Assumption (September 25) - HCBBS Forum
36. What are the eight systems for environmental management? - HCBBS Forum
37. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 318 - HCBBS Forum
38. Scaling tube heat exchanger - HCBBS Forum
39. Not in the chemical industry, working with power plant instrumentation – is there anyone else like me? - HCBBS Forum
40. About 70% of the sulfur in the LOCAT process - HCBBS Forum
41. How are vertical vessels with a H/D of less than 5 calculated in SW6? - HCBBS Forum
42. Seek MagnaChute magnetic flap level gauge - HCBBS Forum
43. Sign-in record post from September 28, 2015 - HCBBS Forum
44. The concentration of concentrated sulfuric acid is 92.5%, at room temperature – can carbon steel be used for storage tanks and pipelines? - HCBBS Forum
45. How to delete a posted message - HCBBS Forum
46. The fly ash problem in Shell boilers - HCBBS Forum
47. 【College Activities】035+Unforgettable Suit+*anpangpang - HCBBS Forum
48. Sulfuric acid is black in color - HCBBS Forum
49. Based on their state of existence, air pollutants can be divided into two main categories. What are the basic methods for treating them? - HCBBS Forum
50. The third match of the Asian Men’s Basketball Championship against Jordan; looking forward to a perfect conclusion to the team’s group stage - HCBBS Forum
51. What are the basic requirements for training safety management personnel in safety production education and training? - HCBBS Forum
52. What is the purpose of connecting rupture disc safety valves in series? - HCBBS Forum
53. Various systems of the 60W unit - HCBBS Forum
54. Manufacturer recommendations for smart differential pressure and smart pressure transmitters - HCBBS Forum
55. Ultrasonic sludge interface measurement? - HCBBS Forum
56. Briefly describe the basic aspects of safety technology and its relationship with production technology. - HCBBS Forum
57. Daily Question, 2015.9.30 (EIA Discussion): 3 Wealth points as a reward for replying, plus 5 Wealth points for the correct answer (single-choice question) - HCBBS Forum
58. Copper tubes for steam tracing - HCBBS Forum
59. Vacuum flash evaporation negative pressure - HCBBS Forum
60. Circulation fan of coal grinding system - HCBBS Forum
61. Chain logic - HCBBS Forum
62. Registration exam division of labor? - HCBBS Forum
63. 【Daily Question】Question from Issue 20150924 - HCBBS Forum
64. Request installation diagram for gauge pressure transmitter with capillary - HCBBS Forum
65. The iron ion level at the top of the atmospheric pressure tower remains high – it’s urgent! Process: The crude oil enters the atmospheric pressure unit without electrical desalting, and then exits from that unit... - HCBBS Forum
66. Why do Roots vacuum pump units require water replenishment? - HCBBS Forum
67. How should the DSW stepped combination seals of Dongsheng be stored? - HCBBS Forum
68. Help needed: malfunction of activated sludge in the aeration tank - HCBBS Forum
69. 10-year senior team leader at a methanol plant - HCBBS Forum
70. Chemical Engineering in Daily Life – Question 88: Why do peaches that have been stored for a long time become soft? - HCBBS Forum
71. How can spiral clamps be classified according to their uses? - HCBBS Forum
72. Discussion on purification processes - HCBBS Forum
73. Simple method for cutting common pipe fittings - HCBBS Forum
74. Briefly describe how to use a portable dry powder fire extinguisher. - HCBBS Forum
75. If the iodomethane content in acetic acid exceeds 4 ppm, which model should be chosen for stainless steel? - HCBBS Forum
76. What safety measures should be taken when a mobile crane is exposed to strong winds? - HCBBS Forum
77. What does L1N in the pipe segment number mean? - HCBBS Forum
78. Do indoor storage tanks require fire dikes and cofferdams? - HCBBS Forum
79. **Do environmental protection agencies treat all enterprises equally? - HCBBS Forum
80. Who has the structural drawings for the steam drum? - HCBBS Forum
81. On the Necessity of Installing Secondary Drum Screens - HCBBS Forum
82. The review exam is approaching; are there any similar types of drawings? I hope everyone can upload their exam drawings - HCBBS Forum
83. What precautions should be taken when performing gas analysis? - HCBBS Forum
84. 【College Activities】027+A short poem about my teacher+*anpangpang - HCBBS Forum
85. 【Safety Warning Signs】Which standard specifies the weight, height, width, and speed limits indicated by signs in manufacturing enterprises? - HCBBS Forum
86. Seeking a copy of the 2015 Pingxiang Sulfuric Acid Conference address book (list of representatives) - HCBBS Forum
87. How is the safe liquid level for crude oil floating roof storage tanks determined? - HCBBS Forum
88. How is the operating temperature of a heat pipe working fluid calculated? - HCBBS Forum
89. 【Daily Question】Question from Issue 20150923 - HCBBS Forum
90. Which domestic steam compressors are good for MVR use? - HCBBS Forum
91. A super-popular word - HCBBS Forum
92. Could the seniors give us, who are chemical engineering students in a specialized program, some advice? Thank you - HCBBS Forum
93. In fact, it’s very difficult for many graduates from universities to meet the requirements set for their master’s degree on their own after completing their master’s program! - HCBBS Forum
94. Is it necessary to demarcate explosion zones for a 20% ammonia storage tank? - HCBBS Forum
95. Exploration of Green and Environmentally Friendly Production Operations in MTBE Plants - HCBBS Forum
96. What is the purging medium used for the soot blower in the convection section of the cracking furnace? - HCBBS Forum
97. The “new normal” in the field of engineering design” - HCBBS Forum
98. Sharing of on-site experience from seven years in ceremonies - HCBBS Forum
99. Regarding the setup of CEMS - HCBBS Forum
100. Environmental Protection Daily Question: Participate on 9.30; there are prizes for correct answers, with additional rewards as well - HCBBS Forum