GB/T 35017-2018 English PDFUS$1559.00 · In stock
Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 35017-2018: Continuous handling equipment -- Classification, symbols, performance and test methods for bulk materials Status: Valid
Basic dataStandard ID: GB/T 35017-2018 (GB/T35017-2018)Description (Translated English): Continuous handling equipment -- Classification, symbols, performance and test methods for bulk materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J81 Classification of International Standard: 53.040.01 Word Count Estimation: 78,787 Date of Issue: 2018-05-14 Date of Implementation: 2018-12-01 Regulation (derived from): National Standards Announcement No. 6 of 2018 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 35017-2018: Continuous handling equipment -- Classification, symbols, performance and test methods for bulk materials---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. Continuous handling equipments--Classification, symbols, performance and test methods for bulk materials ICS 53.040.01 J81 National Standards of People's Republic of China Continuous handling equipment Bulk material classification, symbols, performance and test methods Published on.2018-05-14 2018-12-01 implementation State market supervision and administration China National Standardization Administration issued ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Continuous Handling Machinery Standardization Technical Committee (SAC/TC331). This standard is drafted by. Taiyuan University of Science and Technology, Beijing Crane Transportation Machinery Design and Research Institute. Participated in the drafting of this standard. Hubei Yidu Yunji Electromechanical Co., Ltd., Harbin Hetai Power Equipment Co., Ltd., Nantong Runbang Heavy Machinery Co., Ltd., Jiaozuo Keruisen Heavy Equipment Co., Ltd., Jiangsu Huanyu Crane Transportation Machinery Co., Ltd., Henan Tianlong Transportation Equipment Limited company, Hubei Tianyi Machinery Co., Ltd., Taiyuan Xiangming Intelligent Equipment Co., Ltd. The main drafters of this standard. Meng Wenjun, Cheng Wei, Sun Xiaoxia, Zhang Weizhen, Han Gang, Wang Chuanping, Yang Wenjun, Li Zhenxiong, Meng Fanbo, Zhang Liming, Guo Jinxing, Huang Junjie, Du Yongqiang. Continuous handling equipment Bulk material classification, symbols, performance and test methods1 ScopeThis standard specifies the classification, symbols, characteristics and test methods for bulk materials in continuous handling equipment. This standard is applicable to the field test of the material temperature of continuous handling equipment, the test method of the ultimate shear stress test and the three-axis cutting. Force test method. This standard does not apply to the testing of low temperature material temperatures.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 679 chemical reagent ethanol (95%) GB/T 6003.1 Test sieves - Technical requirements and testing - Part 1 GB/T 6003.2 Technical requirements and testing - Part 2. Metal perforated plate test sieve3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Bulk material bulkmaterials Powdery, granular, blocky material in a loose state. 3.2 Wall shear stress walshearstress Shear resistance per unit area produced by sliding a bulk material against the surface of another solid material. 3.3 Wall yielding trajectory walyieldlocus Under different positive pressures, there is a series of equilibrium points on the wall shear stress of the material, which are connected to form a wall yielding trajectory. 3.4 Natural accumulation angle angleofrepose When the bulk material falls freely and uniformly from a specified height, the maximum slope angle of the conical pile that can be stably maintained is formed (ie, the natural slope) The angle between the surface and the horizontal plane). 3.5 Backward angle drainedangleofrepose Angle of repose The maximum slope angle αn formed after the material is continuously discharged through the flat bottom discharge port (as shown in Figure 1). Figure 1 Back angle 3.6 Cohesion intrinsicgatheringforce Cohesion between particles of bulk material. Cohesion is related to the material properties and the pressures they are subjected to. 3.7 Particle size The size of the bulk material particles. 3.8 Porosity porosity The ratio of the pore volume (excluding the closed pore volume) of the material in its natural accumulation state to the natural bulk volume. 3.9 Abrasive absurdness The nature of the solid surface being abraded when the material moves relative to the solid surface it is in contact with. 3.10 Corrosive corrosive A property in which a material chemically reacts with a solid surface in contact to cause the solid material to corrode. 3.11 Hygroscopic hygroscopic The nature of the moisture (water content) of the material during the stacking or transport process by absorbing moisture from the surrounding air. 3.12 Adhesive stickiness-adhesion When transported by a continuous conveyor, it tends to adhere to the components of the conveyor with which it is in contact. 3.13 Jointed, entangled and agglomerated interlocks, mats, agglomerates If the material particles are intertwined to form a larger block or web, the material has the characteristics of joining or winding. Agglomeration refers to the fact that under certain conditions, the material gradually builds up from the initial particles and forms a stable mass. 3.14 Harmful dust, poisonous gas or toxic fumes harmfuldust, toxicgasorfumes A material that produces gases, fumes, and dust that are harmful to the human body, as well as toxic materials that have a toxic effect on the environment or the human body. 3.15 Dust dusty Particles of bulk material that are small in size and may be suspended in the air. 3.16 Dry weight The mass of the bulk material sample dried to constant weight within the specified time. 3.17 Wet weight wetweight The mass of the directly sampled bulk material sample. 3.18 Sensitive The maximum mass required for the balance pointer to deflect from the equilibrium position to the scale 1 division.4 Material classification and coding4.1 Material density coding system Material bulk density (loose) ρ0 shall comply with the provisions of A.2.8.1 in Appendix A. The density and composition may constitute the classification and coding of the first group of materials. The materials are classified by density as shown in Table 1. Table 1 Materials are classified by density as tons per cubic meter Category Light Material General Material Heavy Material Heavy Material Bulk density ρ0 ≤0.4 >0.4~1.2 >1.2~1.8 ≥1.8 4.2 Material Granularity Coding System The granular material classification and coding of bulk materials are shown in Table 2 and Figure 2. Table 2 Granular material classification and coding Classification size range (GB/T 6003.1, GB/T 6003.2) Classification identifier Dust Dust ≤0.075mm A0.075 Fine powder ≤0.150mm A0.150 Coarse powder ≤0.425mm A0.425 Granular >0.425mm, ≤3.35mm B3.35 Granular Small granular shape >3.35mm, ≤5.6mm C5.6 Granular ≤12.5mm C12.5 Blocky Small block > 12.5mm, ≤ 25mm D25 Medium block >25mm, ≤75mm D75 Large block >75mm, ≤180mm D180 Extra large block >180mm, ≤400mm D400 >400mm Dx Irregular E Class A material. refers to dusty materials, which are divided into dusty materials, fine powder materials and coarse powder materials. Such as lake sand or beach sand, dust, dust, Floating dust, finished cement, powdered sugar, rock powder, silt and clay. Class B material. refers to granular material. Considering the fine size of the material, it is recommended to define it according to the standard sieve hole 3.35mm. Such as coarse grain riverbank sand, A large number of chemicals and processed materials such as salt, sugar and polystyrene. Class C material. refers to granular material, which is divided into small granular material and granular material. Considering the particle size of the material, it is recommended to sieve according to the standard. The dimensions are defined by 12.5mm, and most are smaller than 6.3mm mesh size. Such as fine gravel (pea), animal feed pellets, iron ore pellets, most valleys Things, beans, nuts, raw materials in factory processing, etc. Figure 2 Granular material classification and coding Class D material. refers to block material, which is divided into small block material, medium block material, large block material, extra large block material and larger than granularity. 400mm material, considering the material that can be evaluated for the size of the block, is recommended to be defined by the standard mesh size of 12.5mm. Standard sieve hole ruler Inch 75mm, 180mm and 400mm. If the particle size is greater than 400mm, since these materials have special requirements on the equipment, More detailed considerations in terms of length, width, height, quality, and proportion. Such as gravel, coarse gravel, a variety of coal, a variety of ore. "Goose eggs Stones, "rocks", "original ore", etc. should be considered in the form of approximately cubic or spherical shaped blocks. Class E material. refers to materials with irregular shapes. These materials may be crimped, fibrous or reinforced; measurable thickness cylinders Body or rectangle; or relatively thin and oddly shaped, scaly, wafer-like or plate-like. These materials are oddly shaped and may be joined or entangled in Together, therefore, special requirements should be placed on the conveyor. Such as sawdust, metal fragments or other crumbs, asbestos or rock fragments, trees Skin or garbage, fish and meat or bones, sugar cane, logs, lump coal, metal ore, tobacco leaves, etc. 4.3 Classification of materials 4.3.1 The materials are classified by temperature as shown in Table 3. Table 3 Materials are classified by temperature in degrees Celsius Serial number category temperature T 1 low temperature material ≤ 4 2 room temperature material >4~50 3 medium temperature materials >50~450 4 high temperature materials >450 4.3.2 Materials are divided into three categories according to humidity. a) dry material - material containing only structured water; b) air-dried materials---materials containing structural water and water absorption; c) Wet materials---materials containing structural water, water absorption and crystal water. 4.3.3 Materials are classified by liquidity as shown in Table 4. Table 4 Material fluidity and its coding Describe the flow index (FF) code Free flow is very good FF≫10 1 Free flow 4 \u003cFF\u003c10 2 Conventional flow 2 \u003cFF\u003c4 3 Slow flow FF< 2 4 Note. The fluidity of the material can be judged by the flow function. 4.3.4 The materials are classified as wear according to Table 5. Table 5 Material Wear Index and Its Code Describe the wear index range code Mild wear 1~17 5 Moderate wear 18~67 6 Serious wear and tear 68~416 7 Note. The relative wear of the material can be determined by the wear index, which includes particle hardness, particle shape, bulk density and particle size. 4.3.5 Material classification coding method, classification code is shown in Table 6. a) Material classification and coding method Material name [(bulk density range) (average density) (granularity coding) (flow code) (wear code) (other properties or danger Damage coding) (other attributes or hazard coding)]. The contents of each bracket are chosen based on whether the material has the characteristics listed in the brackets. All characteristics of the material should be considered when selecting the appropriate equipment (see Appendix B). Table 6 Material Classification List Large class material feature code Density bulk density, loose bulk density granularity Dust. ≤0.075mm ≤0.150mm ≤0.425mm Granular. ≤3.35mm Granular. ≤12.5mm Block shape. ≤75mm ≤180mm ≤400mm >400mm, labeled according to the actual maximum size X = actual maximum size Irregular filaments, fibers, cylinders, floor tiles, etc. A0.075 A0.150 A0.425 B3.35 C12.5 D75 D180 D400 Dx fluidity Free flow is very good. FF≫10 Free flow. 4 \u003cFF\u003c10 Regular flow. 2 \u003cFF\u003c4 Difficult to flow. FF< 2 Abrasion Slight wear. wear index 1~17 Moderate wear. wear index 18~67 Severe wear. wear index 68~416 Other attributes or hazards Accumulation and hardening Static electricity Storage deterioration, decomposability Flammability Plastic or soft dust Inflatable fluidization Explosive Adhesion Affect the pollution of use Affect the fragmentation of use Emits harmful dust, poisonous gas or poisonous smoke Highly corrosive Mildly corrosive Hygroscopicity Bonding, winding and agglomeration Grease Compaction Very light, fluffy - can be blown by the wind high temperature Stacking angle of bulk material Maximum tilt angle conveyor maximum inclination b) Example of material classification code Example 1. Dry white lead ore (1.2~1.6) 1.4A0.42536MR Indicates a bulk density range of 1.2t/m3~1.6t/m3, an average density of 1.4t/m3, a particle size of ≤0.425mm, a coarse powdery material, and a conventional flow 2 \u003cFF\u003c 4. Wear index 18~67 Moderately worn, aerated fluidized, dry white lead ore that emits harmful dust, poisonous gas or toxic fumes, see Appendix C. Example 2. 75mm and below kaolin (1) 1D7525 17 slightly worn, 75mm and below kaolin, see Appendix C.5 General provisions for experimental methods for physical properties of materials5.1 General provisions 5.1.1 The error specified in the test method is only to ensure the requirements in the design, manufacture and application of continuous conveying equipment in engineering technology. And set. 5.1.2 Analysis and calculation results The number of digits after the decimal point shall be the same as the number of digits after the decimal point of the allowable error required in the test method. 5.1.3 In daily use, other test methods are not excluded under the premise of ensuring the accuracy of the test results. 5.1.4 The instrumentation, balance, weight and other instruments used in the effective calibration period shall be checked for accuracy before each use, and according to The calibration and calibration of the use of the gauges are regularly corrected. 5.1.5 The samples to be dried shall be dried in an oven at a temperature of 105 ° C ± 5 ° C. 5.1.6 When the sample is placed in an oven at a temperature of 105 ° C ± 5 ° C to dry to constant weight, the interval between two adjacent weighing shall not be less than 3h. When the difference between two adjacent weighing values is not greater than the accuracy required by the test, it is called constant weight value. 5.2 Sampling 5.2.1 For tests that do not have a specified sampling requirement, samples are taken in accordance with this regulation. 5.2.2 Extract representative samples from each batch of material. 5.2.3 The sample taken for the first time shall be not less than 10 parts, and the total amount of the sample shall not be less than 2 times of the test amount (see Table 7). 5.2.4 The initial sample can be taken in the following cases. a) When conducting routine tests at the transport site, it should be taken within a certain batch gap of the material being transported. When the feeding is uniform and the conveying is positive At all times, it can be extracted over a certain period of time over the entire length of the conveying equipment leading to the pile and the silo. b) When sampling from a homogeneous stockpile, each batch is 300m3 (or 500m3), and the shortcomings are also discussed in batches. Sample can be taken from the material The pile cones are selected from 10 different points in different parts from top to bottom, but avoiding the extraction of the separated and surface materials. c) When taking samples from the bagged material, they should be taken from different positions and heights of 10 bags. 5.2.5 After the first sample is mixed uniformly, it is reduced to the required amount of material for the test according to the quadruple method (see Table 7). Table 7 Material characteristics test sample dosage meter unit is liter Serial number test item Experimental dosage Particle size >0mm~5.6mm Particle size >5.6mm~25mm Particle size >25mm 1 Particle size and particle grading 5 10 20 2 Bulk density 5 30 40 3 Filling density 5 30 40 4 Humidity (water content) 2 10 20 Table 7 (continued) Unit is liter Serial number test item Experimental dosage Particle size >0mm~5.6mm Particle size >5.6mm~25mm Particle size >25mm 5 stacking angle 5 20 40 6 Shear strength 5 10 20 7 External friction angle 2 10 20 8 External friction coefficient 2 10 20 5.3 Sampling requirements 5.3.1 Carefully clean the sampling tool and dry the surface of the tool before sampling. 5.3.2 Sampling materials should be piled on cleaned concrete floor or metal platform for mixing and shrinking to avoid mixing other impurities into the sampling. Among the materials. 5.3.3 Sampling materials should not be piled up in places exposed to sunlight or strong winds for mixing and shrinking, so as to avoid the volatilization or dust of the water contained in the materials. Flying and lost. 5.3.4 The sampled materials shall be kept in the original condition before sampling, and shall not be artificially broken, aired or taken other possible changes during the sampling process. Sampling method for material characteristics. 5.4 Sample containers and labels 5.4.1 Samples for moisture (water content) shall be placed in a container with a sealed lid and labeled. 5.4.2 The sample to be inspected shall be placed in the sample bag (or sample tube) with a label attached. 5.4.3 The following contents are indicated on the label. a) number; b) name, grade, place of origin; c) batch (kg); d) delivery order number (or production lot number); e) sampling location, date and weather; f) If necessary, indicate the sampling conditions and process, the raw data of the sample, and the test items and uses.6 Test of material particle size and particle composition6.1 Method summary 6.1.1 The sieving method is to sift the sample through a series of standard sieves under certain test conditions, and weigh and retain the materials remaining on each layer of sieve. the quality of. According to the quality of the materials remaining on each layer of the sieve and the total mass of the original sample, the percentage of the gradation of the materials and the cumulative gradation percentage are obtained. Characteristic indicators such as specific particle size and particle composition. 6.1.2 Particle size and particle composition of materials with a particle size greater than 710 μm mesh size are tested by dry screening method, particle size is less than or equal to The particle size and particle composition of the 710 μm material were tested by wet or dry sieve. 6.2 Instruments, tools and reagents The test equipment shall meet the following requirements. a) oven (maximum operating temperature.200 ° C, with automatic temperature control and ventilation); b) platform scale (weighing 10kg, sensing 5g); Pallet balance (weighing 1kg, sensation 0.01g); c) Standard sieve (standard sieve shall be provided with a sieve bottom sieve seat, and the sieve hole diameter shall comply with the provisions of Table A.1); d) vibrating shaker; e) distilled water wash bottle; f) Porcelain crucible (30mL); g) dryer (with color-changing silica gel); h) brush; i) Ethanol [chemically pure (see GB/T 679)]. 6.3 Test procedure 6.3.1 Dry screening method 6.3.1.1 Prepare the sample in the quantities specified in Table 7. 6.3.1.2 Dry the prepared sample in an oven to a constant weight. The dried sample was divided into 2 portions, and the mass of each sample was weighed separately. 6.3.1.3 According to the particle size of the material, select a set of sieves, according to the provis......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 35017-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 35017-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 35017-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 35017-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
