English — Forum #723 (Page 268/642)

1. Ultra-pure water equipment in the battery industry ensures the stable operation of the system - HCBBS Forum
2. Exchange on advanced treatment of wastewater from the pharmaceutical and coal chemical industries - HCBBS Forum
3. Sludge has formed in the oxidation ditch – how to deal with it? - HCBBS Forum
4. A chemical manufacturing company in Dongming County, Heze is seeking a director of equipment - HCBBS Forum
5. May 09, 2016 «Knowledge Popularization» Coke oven gas, blast furnace gas, converter gas - HCBBS Forum
6. Does a small amount of dimethyl ether in the C4 feedstock have an impact on palladium-based catalysts? - HCBBS Forum
7. New hydrogen compressor for hydrogenation unit - HCBBS Forum
8. Weekly Topic: What are the measures to prevent methanol poisoning? How to handle emergencies in the event of a methanol leak? 2016.5.16---... - HCBBS Forum
9. Discussion: During normal production, if there is a sudden change in the type of coal, resulting in a high pressure difference at the slag outlet, how should this be handled? - HCBBS Forum
10. Daily Question, May 8, 2016 – Catalysis Section: Concentration range for gasoline detonation - HCBBS Forum
11. 【Daily Question】Deep Processing 20160516: The abbreviation for polyacrylonitrile fibers, commonly known as \"synthetic wool\" (i.e., acrylic fibers)… - HCBBS Forum
12. Dosage of ferrous sulfate - HCBBS Forum
13. 【Daily Judgment NO.6】 May 14, 2016 - HCBBS Forum
14. Steps for switching off a variable-frequency pump - HCBBS Forum
15. Regarding preparation for the Certified Chemical Engineer exam - HCBBS Forum
16. How to represent cold boxes in PID and PFD - HCBBS Forum
17. 【Daily Topic】【Electrical Edition 20160507】 - HCBBS Forum
18. Which department is responsible for maintaining the ledger of work permits for ground work, pipeline cutting, and non-destructive testing in petrochemical enterprises? - HCBBS Forum
19. 【Daily Topic】【Electrical Edition 20160506】 - HCBBS Forum
20. What is everyone’s light oil yield in the coking unit? - HCBBS Forum
21. Given the components of a gaseous fuel, how can its calorific value be calculated? - HCBBS Forum
22. Basic design - HCBBS Forum
23. In production, the term \"rapid temperature rise\" is often used; what rate of temperature increase constitutes a rapid temperature rise? - HCBBS Forum
24. What is the basis for using a method of laying the communication cables of the control system one day per layer? - HCBBS Forum
25. Do you have to deduct points from yourself to give points to others? - HCBBS Forum
26. What is the freezing point of 30% glacial acetic acid? - HCBBS Forum
27. Reviewing the Old to Discover the New (Series 23) - HCBBS Forum
28. High-temperature reduction problem of catalysts in gasoline and diesel hydrogenation units - HCBBS Forum
29. Aspen adsorption - HCBBS Forum
30. Bygone times - HCBBS Forum
31. Sulfur recovery - HCBBS Forum
32. Heat treatment characteristics of various stainless steel sheets - HCBBS Forum
33. honeywell issue - HCBBS Forum
34. Can replacing the magnetic coupling achieve the goal of reducing pump flow? - HCBBS Forum
35. What causes the increase in pH during hydrolytic acidification? - HCBBS Forum
36. Why are flow rate controls required for both the product stream exiting the hydrogenation reaction system and the circulating water, while there is little mention of this in the top of atmospheric and vacuum distillation columns? - HCBBS Forum
37. Shut down - HCBBS Forum
38. 【Weekly Topic】【 HVAC Version 201605011】 - HCBBS Forum
39. Negative pressure at the inlet of the triple-effect evaporation pump - HCBBS Forum
40. Urgent! Urgent! Urgent! China National Petroleum is hiring again, with a large number of positions suitable for you. . . - HCBBS Forum
41. Do buried storage tanks require a nitrogen blanket? - HCBBS Forum
42. Questions regarding the material selection for gas pipeline systems and fittings - HCBBS Forum
43. Honeywell sequential control expressions - HCBBS Forum
44. How to delete a post you posted - HCBBS Forum
45. Fish always promotes me to be the moderator of the leisure section, so that we can all learn and communicate together in a happy manner - HCBBS Forum
46. ISO 9001:2015 – Analysis of Internal and External Environment and Application of SWOT Method (Part 1) - HCBBS Forum
47. The oil dream, my dream - HCBBS Forum
48. Maintenance of the condenser, one of the four key components of a chiller - HCBBS Forum
49. 【Daily Question】May 10, 2016 – Participate to earn +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
50. Classification of main and auxiliary materials for mechanical and electrical installation - HCBBS Forum
51. Can valves made of 15CrMo be replaced with 1Cr5Mo? - HCBBS Forum
52. The issue of the acceleration head of metering pumps - HCBBS Forum
53. Dichloromethane recovery: Do electrical components need to be designed to be explosion-proof? Dichloromethane is classified as Category 3; is it necessary? - HCBBS Forum
54. Are fixed supports required at both ends of a single-wave expansion joint? - HCBBS Forum
55. The high-tower nitro compound fertilizer comes in a high-potassium formula; with the same formula and identical feeding amounts, there is a significant difference in the consistency of the slurry between the two batches - HCBBS Forum
56. Differences in valve naming - HCBBS Forum
57. Regarding the calculation of the amount of activated carbon required for VOC adsorption, - HCBBS Forum
58. Handling of safety valve tripping - HCBBS Forum
59. Sign-in record post from May 13, 2016 - HCBBS Forum
60. Choosing between ball valves and butterfly valves - HCBBS Forum
61. Installation of ultra-pure water equipment for polysilicon - HCBBS Forum
62. I would appreciate it if experts could explain whether the acid water raw material tank is a tank within a tank, and its working principle. - HCBBS Forum
63. The experts are in urgent need of a set of CAD drawings for a spray-type saturator - HCBBS Forum
64. Calculation method for water spray volume in flue gas quench tower - HCBBS Forum
65. Is a wire plug installed behind the check valve on the utility pipes? - HCBBS Forum
66. How to solve the problem of poor salt absorption in boiler water softening equipment - HCBBS Forum
67. 【Daily Question】20160511: Corrosion margin for steel plates used in the containers and housings of NaOH solution media (first 50 entries + 2 bonus points) - HCBBS Forum
68. High-power LYWS-10 acoustic soot remover designed for coal-fired boilers - HCBBS Forum
69. The gas blower isn’t delivering air - HCBBS Forum
70. Information on the balance disk of centrifugal compressors - HCBBS Forum
71. Large temperature difference across the valve - HCBBS Forum
72. HaiChuan Coin Worker water-based acrylic resin does not stick during the drying process; what can be done to solve this? - HCBBS Forum
73. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 515 - HCBBS Forum
74. What is a dedicated graphics card, and what are the differences between it and integrated graphics cards as well as low-end discrete graphics cards? - HCBBS Forum
75. 【Weekly Topic】【HVAC Version 20160505】 - HCBBS Forum
76. How is the power of the slurry tank mixer determined? - HCBBS Forum
77. Pre-treatment for boiler water softening treatment equipment - HCBBS Forum
78. Seeking advice on hydraulic turbine shaft vibration issues - HCBBS Forum
79. Preparations required before starting a horizontal multi-stage centrifugal pump - HCBBS Forum
80. What to do if bituminous coal is mistakenly fed instead of the coal intended for gasification? - HCBBS Forum
81. Unveiling the secret for you: Why are TPU films widely used in inflatable boats, water kites, and windproof jackets? - HCBBS Forum
82. Extraction towers for treating phenol-containing wastewater in the coke production process - HCBBS Forum
83. On the relationship between the main circuit current and the branch circuit current of electric heaters - HCBBS Forum
84. Recruiting LMW engineers - HCBBS Forum
85. Who are the manufacturers of bisphenol A BPA used as raw material for polycarbonate PC, and what is their production capacity? - HCBBS Forum
86. Discussion on Accidents in Pulverized Coal Fluidized Bed Gasification Technology - HCBBS Forum
87. Hello everyone, I’m here - HCBBS Forum
88. Is the light transmittance of the neck-mounted endoscope poor? - HCBBS Forum
89. Introduction to ultra-pure water equipment in the optoelectronics industry - HCBBS Forum
90. What could be the problem if the temperature rise in a first-order reactor is too high? - HCBBS Forum
91. My points were stolen in large amounts overnight - HCBBS Forum
92. Pork ribs stewed with wax gourd - HCBBS Forum
93. Vaporizer venturi scrubber - HCBBS Forum
94. Tour group announcement: Welcome gaodi913 and reading_wyc; farewell to Caili Yisu - HCBBS Forum
95. How to quickly improve reading permissions - HCBBS Forum
96. Regarding registration for the injection molding course - HCBBS Forum
97. 【Weekly Topic】【Production Version 201605016】 - HCBBS Forum
98. With a hot air flow rate of 4500 cubic meters per hour and a temperature of 300 degrees, it is necessary to reduce the temperature to 150 degrees through heat exchange; what area is required for such a heat exchanger? - HCBBS Forum
99. 【Daily Topic】【Civil Engineering Version 20160511】 - HCBBS Forum
100. Installation methods of blast discs in pipelines - HCBBS Forum