MT 196-1989 English PDFUS$169.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. MT 196-1989: Coal pump Status: Obsolete
Basic dataStandard ID: MT 196-1989 (MT196-1989)Description (Translated English): Coal pump Sector / Industry: Coal Industry Standard Classification of Chinese Standard: J71 Word Count Estimation: 4,441 Date of Issue: 3/31/1989 Date of Implementation: 4/1/1989 Summary: This standard specifies the type of coal pumps, basic parameters and technical conditions. This standard applies to transport the coal mines of coal water mixture pump. The pump can also be used to transport ash, ore, tailings, salt, gravel, dirt, etc. The solid particle size is conveyed not more than 50mm; volume concentration of the solid-liquid mixture is not more than 30%; the temperature should not exceed 80 ��. MT19:---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Coal pump Contents1 Topic content and scope of application 1 2 Normative references 1 3 Types and basic parameters 1 4 Technical requirements 2 5 Test methods and acceptance rules 3 6 Marking, packaging, transportation and storage 3 MT/T 196-89 Ministry of Energy Standards Coal water pump 1989-03-31 approved by the Ministry of Energy of the People's Republic of China1 Topic content and scopeThis standard specifies the type, basic parameters and technical conditions of coal water pumps. This standard applies to coal-water pumps that transport coal-water mixtures in coal mines. The pump can also be used to transport ash, concentrate, tailings, salt, grit, mud Soil etc. The particle size of the solid particles to be transported is not greater than 50mm; the volume concentration of the solid-liquid mixture is not greater than 30%; the temperature should not exceed 80 ° C.2 Reference standardsMatching of GB 275 rolling bearings with shafts and housings GB 699 steel grade and general technical conditions of high-quality carbon structural steel Technical specifications of GB 700 ordinary carbon structural steel GB 976 Classification and technical requirements of gray cast iron GB 977 Test method for mechanical properties of gray cast iron GB 979 carbon steel casting classification and technical conditions Classification and technical conditions of GB 1299 alloy tool steel GB 3214 water pump flow measurement method GB 3216 Test methods for centrifugal pumps, mixed flow pumps, axial flow pumps and vortex pumps GB 7021 centrifugal pump terminology YB13 Steel for wear-resistant parts of agricultural tools JB/T Q380 pump vibration measurement and evaluation method JB2759 General technical requirements for packaging of mechanical and electrical products3 types and basic parameters3.1 Type The coal water pump is a two-stage horizontal split case volute centrifugal pump. 3.2 Model meaning example. 3.3 Basic Wood Parameters The basic performance parameters of the pump when discharging clean water are as specified in Table 1.4 Technical requirements4.1 Basic requirements. 4.1.1 Coal water pumps shall meet the requirements of this standard and be manufactured in accordance with drawings and technical documents approved by prescribed procedures. 4.1.2 Any general technical requirements not specified in this standard shall meet the requirements of relevant standards of the machinery industry in national standards. 4.2 When determining the power of the prime mover, the rated shaft power should be calculated according to the gravity of the solid-liquid mixture input.The power of the optional prime mover should be greater than the calculation. 110% of rated shaft power. 4.3 The pump shall allow two units to be used in series in situ. 4.4 Reference operating conditions and service life. 4.4.1 Under the conditions that the coal slurry volume concentration is less than 10%, the coal hardness hardness Platts coefficient f is not greater than 1, and the radon content of coal does not exceed 20%, No overhaul at 1800h. 4.4.2 Under the conditions that the coal slurry volume concentration is 10% ~ 20%; the coal hardness Hardness Platts coefficient f is 1 ~ 1.5; and the radon content of coal does not exceed 20% Under the 1300h operation without overhaul. 4.4.3 in coal slurry volume concentration greater than 20% to 30%; coal hardness hardness Platts coefficient f greater than 1.5 to 2; coal radon content not exceeding 20% Under the conditions, running for 800h without overhaul. 4.5 The mixed running of the bearing shall not exceed 35 ℃ than the ambient temperature, and the limit temperature shall not exceed 75 ℃. 4.6 Material selection of main parts. a. The material of pump casing and connecting pipe is ZG35 or high-quality carbon steel superior to ZG35. b. The material of impeller, mouth ring, housing seal ring (impeller seal ring), intermediate seal sleeve, intermediate shaft sleeve, volute sleeve, odd-shaped sleeve is high chromium Series alloy white iron, such as Cr15Mo3 or other wear-resistant materials. c. The material of the intermediate separator is 65SiMnCu or other abrasion-resistant materials. d. The shaft material is 45 high-quality carbon steel, and it is quenched and tempered. e. The stuffing bushing material is 45 high quality carbon steel spray-welded nickel-based wear-resistant coating or other wear-resistant materials. 4.7 Material composition, quality, technical requirements and test methods shall meet the following standards GB 979, GB 976, GB 977, GB 1299, GB 699, GB 700, YB13. 4.8 The parts that cooperate with rolling bearings should meet the requirements of GB 275. 4.9 The surface roughness of the main mating parts of the part is not greater than the following requirements. 4.9.1 Pump shaft surface matching with impeller, intermediate shaft sleeve, odd-shaped sleeve, stuffing shaft sleeve, bearing inner sleeve and coupling. Ra1.6μm. 4.9.2 Impeller, intermediate shaft sleeve, odd-shaped sleeve, stuffing shaft sleeve, bearing inner sleeve, inner hole surface of coupling and pump shaft matching. Ra3.2μm. 4.9.3 Part transition mating surface. Ra3.2μm. 4.9.4 Sealing plane of upper and lower pump casing. Ra3.2μm. 4.10 Center holes shall be retained at both ends of the shaft. 4.11 The impeller should be subjected to static balance test, and its unbalanced weight should meet the requirements of G16 level balance accuracy in Appendix B of JB/T Q380. cut In addition to the unbalanced weight, the cover between the blades can be cut smoothly from the outer circle; or the outer surface of the rear cover can be cut smoothly Metal, but the thickness of the cut-out must not exceed one quarter of the nominal thickness of the back plate. 4.12 The pump casing should use normal temperature clean water for the tightness test and hydraulic strength test.The test pressure should be 1.5 times the actual working pressure of each pressure bearing area. The test shall be performed at the same time, the duration after reaching the test pressure shall not be less than 5min, and there shall be no leakage during the test. 4.13 Before assembly of the pump, the parts where the parts flow should be coated with anti-rust paint. 4.14 All parts of the pump must be inspected and qualified before assembly. 4.15 The tolerance of the radial runout of the rotor component to the outer surface of the bearing shall not exceed the requirements in Table 2. 4.16 The installation position of the impeller should be in the center of the volute liner, and the deviation should not exceed 1.5mm. 4.17 After the pump is assembled, when the packing is not installed, the rotor rotation should be flexible and uniform. 4.18 The matching parts of parts and components shall ensure that the parts and components are interchangeable. The installation dimensions of the pump should be consistent with the drawings. 4.19 After the pump has passed the performance test, the water accumulated in the pump should be removed, and the rust treatment and new packing replaced. The external surface should be smooth and polished, Carefully remove rust and oil, and apply primer and topcoat. Putty when needed. The paint should be uniform and free of cracks, peeling, bubbles and silting And other defects. Exposed processed surfaces should be coated with hardened rust preventive oil. 4.20 The complete range of pump supplies includes. a. Completely assembled pump; b. motor; c. base; d. Coupling. e. Gate valve for pump inlet and outlet. f. Vulnerable spare parts; g. Special tools necessary for assembling and disassembling the pump. Users can order all or part of the complete supply range according to their needs, and indicate in the order form. 4.21 Under the condition that the product selected by the user is appropriate and the transportation, storage, installation, and usage rules of the pump are observed, 12 months from the manufacturer's shipment In the event that the product is damaged due to poor manufacturing quality or does not work properly, the manufacturer shall be responsible for replacing, repairing the product or Parts, but excluding all vulnerable parts and normal damage of parts.5 Test methods and acceptance rules5.1 Each pump must pass the inspection of the manufacturer's technical inspection department and be accompanied by a product quality certificate before shipment. 5.2 Test according to the following regulations. a. Type testing of all new product trials. b. When some characteristics change due to design or process changes, all type tests are performed. c. Type-tested products shall be type-tested in accordance with the quantity specified in Table 3. Factory test, but products with stable quality can be tested at the rate specified in Table 3. If the test fails, it is determined according to the nature of the problem. Be sure to double the test or all tests. 5.3 The test method shall meet the requirements of GB 3216 and GB 3214. Performance test accuracy and acceptance are generally in accordance with Class C of GB 3216. 5.4 During the performance test, the bearing temperature, seal leakage, vibration and noise should be checked at the same time. 5.5 When the manufacturer cannot perform the test due to the limitation of equipment conditions, the user may test it. The specific test method is agreed by the manufacturer and the user. 6 Marking, packaging, transportation and storage 6.1 Signs 6.1.1 Each pump shall be securely nailed with the product label in an appropriate and prominent position. The sign should include the following. a. the name of the manufacturer; b. the name and model of the pump; c. Technical specifications of the pump. flow rate (m3/h), head (m), maximum allowable particle size (mm), efficiency (%), speed (r/min), belt Power (kW), necessary cavitation allowance (m) and pump weight (kg); d. Pump manufacturing number and date of manufacture. 6.1.2 The direction of rotation of the pump shall be indicated by a red arrow sign at a suitably prominent position. 6.2 Packaging and shipping 6.2.1 Product packaging shall comply with the provisions of JB2759. It shall be able to prevent corrosion, damage or loss of accessories, spare parts and documents during transportation. Case, etc. 6.2.2 After anti-rust treatment and surface painting, the inlet and outlet of the pump should be covered with cover plates, and other holes communicating with the pump should also be blocked. 6.2.3 When each pump leaves the factory, it shall be accompanied by a certificate of delivery, packing list, random technical documents and drawings (including. instructions for installation and use) Book, installation dimension drawing, general assembly drawing, wearing parts drawing), and sealed in waterproof and moisture-proof document bag. 6.2.4 The outside of the packing box shall be marked with the following. a. pump model name; b. pump factory number and packing date; c. Pump net weight, package weight and overall dimensions (length × width × height); d. Arrival and receiving units; e. Station and shipping unit. 6.3 The system shall be protected from rust and damage during storage. Additional information. This standard is proposed by the Technology Development Department of China Unified Coal Mine Corporation. This standard was drafted by the Tangshan Branch of the Coal Science Research Institute and the Machinery and Power Plant of the Beijing Mining Bureau. This standard is entrusted to the Tangshan Branch of the Coal Science Research Institute and the Machine and Power Plant of the Beijing Mining Bureau for interpretation. The main drafters of this standard are Li Zhongzheng, Wang Wenlie, Huang Jiaqian, and Zhao Jiajun. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of MT 196-1989_English be delivered?Answer: Upon your order, we will start to translate MT 196-1989_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of MT 196-1989_English with my colleagues?Answer: Yes. 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