English — Forum #723 (Page 277/642)

1. I’m asking experts to check whether it’s a fault with the pneumatic positioner of YTC’s YT1000 RDm131 - HCBBS Forum
2. Is there any way to quickly reduce the COD of the effluent to below 1000? - HCBBS Forum
3. 【Daily Question】April 23, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
4. I would like to ask everyone: what is the approach to dealing with instrument-related issues? - HCBBS Forum
5. 【Daily Topic】【Quality Version 20160422】 - HCBBS Forum
6. Weekly Topic: What poisons must be guarded against in catalysts during normal production? Methanol segment from 05-02 to 05-09, 2016 - HCBBS Forum
7. How can newly registered members get 50 after following the public account? - HCBBS Forum
8. 【Daily Question】April 30, 2016 - HCBBS Forum
9. How should the flange be designed for a quick-opening design of an autoclave? My autoclave has a diameter of DN3200 and a length of 30 meters - HCBBS Forum
10. Are there fluctuations with the on-site temperature regulator attached to the thermocouple? - HCBBS Forum
11. Please help recommend a laptop - HCBBS Forum
12. Why is the quality of wastewater treatment for printing processes inconsistent, even when the dosage of chemicals used remains the same? - HCBBS Forum
13. 【Daily Question】April 28, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
14. What kind of soft-sealed butterfly valve is D71XNK-10? What do XNK stand for? - HCBBS Forum
15. 【Daily Question】April 25, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
16. Help, the model of the heat exchange tube - HCBBS Forum
17. The principle of heat release regarding phase change latent heat - HCBBS Forum
18. Who has a complete dictionary of work packages for EPC engineering companies or chemical engineering design? I would appreciate any advice - HCBBS Forum
19. Consultation on flue gas flow meter - HCBBS Forum
20. What kind of valves should be used on boiler pipes to control flow? - HCBBS Forum
21. Urgently need solutions to the problem of pumping oil tanks - HCBBS Forum
22. 【Daily Question】April 22, 2016: Participation = +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
23. Seeking advice on the material for the cathode wire in wet electrostatic mist eliminators - HCBBS Forum
24. Questions regarding jacketed heat exchange - HCBBS Forum
25. 【Daily Topic】【Engineering Version 20160502】 - HCBBS Forum
26. Water-based acrylic resins do not stick during the drying process; what can be done to solve this issue? ? - HCBBS Forum
27. 【Q&A Question 003】April 23, 2016 - HCBBS Forum
28. The issue of element balance - HCBBS Forum
29. Traffic calculation - HCBBS Forum
30. 【Daily Topic】【Civil Engineering Version 20160426】 - HCBBS Forum
31. I’m seeking advice from some expert: does anyone have the procedures and guidelines for C5C6 heterogeneity? I am extremely grateful. - HCBBS Forum
32. Why does the ORP decrease after adding alkali in the first stage of cyanide removal for cyanide-containing wastewater? - HCBBS Forum
33. Inspection issues for 35-ton power station boilers - HCBBS Forum
34. Calculation of the external skull flange - HCBBS Forum
35. 【Daily Topic】【Quality Version 20160425】 - HCBBS Forum
36. 【Daily Question No. 162】April 25, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
37. The operating pressure of the gas pipeline is 0.09 bar; then what pressure is required for the pressure testing? - HCBBS Forum
38. In the Carrousel oxidation ditch process, the ammonia nitrogen level in the effluent can sometimes be higher than that in the influent - HCBBS Forum
39. The oil aniline content extracted is high - HCBBS Forum
40. Application of YX composite materials in anti-corrosion water-ring vacuum pumps - HCBBS Forum
41. What problems can arise if chemicals are not properly added to pig farm wastewater? - HCBBS Forum
42. throttling orifice plate - HCBBS Forum
43. 【Weekly Topic】【HVAC Version 20160429】 - HCBBS Forum
44. Refinement of distillation towers in our factory - HCBBS Forum
45. Technical assistance: Is it possible to drive piles using hammers around the existing device? - HCBBS Forum
46. 【Daily Question】Chemical Engineering Principles 368: Locations of oxygen corrosion in boilers (May 4) - HCBBS Forum
47. The exhaust gas contains a large amount of cooking fumes - HCBBS Forum
48. What are the standard methods for measuring pipe fitting dimensions? - HCBBS Forum
49. Automatic control design for gasification furnace - HCBBS Forum
50. Why do most general contractors for chemical EPC projects dislike pile foundation work? Is it rather done by the owners? - HCBBS Forum
51. Heat transfer coefficient of liquid chlorine vaporizer - HCBBS Forum
52. What factors mainly affect the air delivery pressure of a fan? - HCBBS Forum
53. What tools are generally used for pipeline surveying? - HCBBS Forum
54. 【Daily Topic】【Electrical Edition 20160505】 - HCBBS Forum
55. How to perform maintenance inspections on dry gas tanks? ? - HCBBS Forum
56. The company is planning to develop software for the automatic selection of instruments for control processes; please share any suggestions - HCBBS Forum
57. Under strong alkaline conditions, Ca and Fe in the EDTA-Ca and EDTA-Fe complexes, except for… - HCBBS Forum
58. On the problem table method in pinch analysis - HCBBS Forum
59. What are the reasons for high shaft vibration and severe rotor loading in gas blowers? ? - HCBBS Forum
60. How thick are the Teflon pads usually under the sliding saddle base plate? - HCBBS Forum
61. Polysilicon reduction furnace exhaust gas filter - HCBBS Forum
62. Design of coking ammonia evaporation - HCBBS Forum
63. How to establish a pressure difference during the catalyst cold cycle at the start-up of catalytic reforming - HCBBS Forum
64. Static Equipment Maintenance Plan - HCBBS Forum
65. 【Daily Topic】【Electrical Edition 20160426】 - HCBBS Forum
66. Regarding the issue of double-acting vs. single-acting bottom valves in reaction vessels - HCBBS Forum
67. Directional gate valve - HCBBS Forum
68. Main steam pipeline warming plan for turbines - HCBBS Forum
69. Aspen works fine during simulation, but all tests fail when using EDR - HCBBS Forum
70. Questions regarding compressor loading and unloading - HCBBS Forum
71. 【Car Rental Companies】Tips for renting a car - HCBBS Forum
72. Packed tower CAD diagram - HCBBS Forum
73. (Solved) I bought a high-pressure plunger pump, and the pressure gauge at the outlet fluctuates between 4 Mpa and 6 Mpa. Is this normal? - HCBBS Forum
74. High-temperature and high-pressure pyrolysis technology for low-rank coal - HCBBS Forum
75. 【Daily Question】April 26, 2016: Participation = +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
76. Help. Valve selection issue. - HCBBS Forum
77. L-carnitine fumarate - HCBBS Forum
78. How to initiate an event? It is suggested to organize an event titled “I finally understood this problem.” - HCBBS Forum
79. (Forwarded) Don’t take the proper use of protective equipment lightly - HCBBS Forum
80. How long will it take to learn? - HCBBS Forum
81. Status of the device’s safety valves in operation! - HCBBS Forum
82. **Strategic Alliance for Technological Innovation in the Fine Chemicals Industry - HCBBS Forum
83. How should thermal energy equipment be cleaned properly? - HCBBS Forum
84. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 508 - HCBBS Forum
85. Looking for a 3D model of a Spirax Sarco pressure regulator - HCBBS Forum
86. The issue of adding fluxes in coal gasification - HCBBS Forum
87. Throttling issue - HCBBS Forum
88. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 510 - HCBBS Forum
89. Discussion on pipeline venting issues - HCBBS Forum
90. The drain valve for mass flow rate is located after the flow meter - HCBBS Forum
91. How is the 180t/d gasification unit, with Huaneng furnaces featuring downward cooling at each burner? Is it too small? - HCBBS Forum
92. Maximum flow rate of the valve - HCBBS Forum
93. One Question per Day, April 28, 2016 – Catalysis Section: Thermal Balance of Gas Handling Units - HCBBS Forum
94. Must the elbows and tees on pipelines be standard components? - HCBBS Forum
95. High-temperature seal repair technology for turbine cylinder leaks - HCBBS Forum
96. 【Daily Topic】【Production Version 20160425】 - HCBBS Forum
97. 【Daily Question No. 129】April 26, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
98. Gino crude oil - HCBBS Forum
99. Here are some recommended domestic mass flow meters - HCBBS Forum
100. Polysilicon reduction electricity - HCBBS Forum