JB/T 51219-2000 Small flour processing equipment product quality classification JB/T51219-2000 standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T51219-2000
Small-scale flour processing complete equipment
Product quality classification
(Internal use)
Published on 2000-03-30
State Machinery Industry Bureau
Implementation on 2000-10-01
JB/T51219-2000
This standard is a revision of JB/T51219.1~51219.394 "Product quality classification of small-scale flour processing complete equipment". Compared with JB/T51219.1~51219.394, the main technical content of this standard has been changed as follows: - Added the content of product quality classification of complete sets of graded flour processing equipment; - Deleted the index requirements for the axial movement of the fast roller of the mill; - Modified the hardness of the roller body of the mill; - Modified some performance indicators of complete sets of equipment for processing standard flour; - Modified the expression of some clauses of the original standard. This standard replaces JB/T51219.1-51219.394 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Agricultural Machinery Standardization. The responsible drafting unit of this standard: Shandong Agricultural Machinery Science Research Institute. The participating drafting units of this standard: Shandong Hushan Grain and Oil Machinery Co., Ltd., Henan Nanyang Guanghui Machinery Factory, and China Agricultural Mechanization Science Research Institute.
The main drafters of this standard: Zhou Qingnong, Sun Zhongpei, Ma Nailan, Li Zhiqing, and Su Xinchun. This standard was first issued and implemented in 1987 as JB/NQ166.1~166.7-87, and the standard number was adjusted to JB/T51219.1~51219.3-94 in September 1994.
1 Scope
Machinery Industry Standard of the People's Republic of China
Small-scale flour processing complete equipment
Product quality classification
(Internal use)
JB/T51219-2000
Replaces JB/T51219.1-51219.3-94
This standard specifies the quality indicators, test methods and inspection rules for small-scale flour processing complete equipment. This standard applies to small-scale flour processing complete equipment (hereinafter referred to as complete equipment). 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards: GB 1351—1999
GB 1355—1986
GB/T2828——1987
GB/T5492-—1985
GB/T 54971985
GB/T 5504—1985
GB/T5505—1985
GB/T 5506—1985
GB/T5507—1985
GB/T 5508—1985
GB/T5509—1985
JB/T5673—1991
JB/T5680—1991
JB/T8838.1-—2000
JB/T8838.2—2000
JB/T50195-2000
3 Quality indicators
General requirements
Wheat flour
Batch inspectionCount sampling procedures and sampling tables (applicable to inspection of continuous batches)Grain and oil inspectionColor, odor and taste identification methodGrain and oil inspectionWater content determination method
: Wheat flour processing precision inspection Method
Grain and oil inspection
Grain and oil inspectionAsh content determination method
Grain and oil inspectionGluten determination method
Grain and oil inspectionFlour coarseness determination methodGrain and oil inspectionFlour sand content determination methodGrain and oil inspectionFlour magnetic metal content determination methodPainting of agricultural and forestry tractors and machinery
General technical conditions
Small roller mill
Small flour processing complete equipment
Technical conditions
Test method of small flour processing complete equipmentProduct reliability assessment method of small flour processing complete equipment3.1.1The mill in the complete equipment shall comply with the relevant provisions of JB/T5680. 3.1.2The safety requirements and other technical requirements of the complete equipment shall comply with the relevant provisions of JB/T8838.1. 3.2 Quality index classification
Approved by the State Machinery Industry Bureau on March 30, 2000, implemented on October 1, 2000
JB/T51219—2000
3.2.1 According to the technical level and quality level of the complete set of equipment, the products are divided into qualified products, first-class products and superior products. 3.2.2 When processing third-class or above wheat in accordance with GB1351, the performance index of the complete set of equipment shall comply with the provisions of Table 1. 3.2.3 The assembly and appearance quality of the complete set of equipment for graded flour and the assessment of key components shall be carried out in accordance with the provisions of Table 2. 4 Test methods
4.1 The performance test of the complete set of equipment is carried out in two parts: the wheat room and the flour room, and conditions for independent testing of the two parts should be created. 4.2 The requirements for test conditions and test preparation work shall comply with the relevant provisions in JB/T8838.2. 4.3 The specific test methods for the performance indicators of complete sets of equipment are shown in Table 3. 4.4 The specific test methods for the quality indicators of assembly, appearance and key parts of complete sets of equipment are shown in Table 4. 5 Inspection rules
5.1 Sampling plan
5.1.1 The sampling inspection procedure is in accordance with the normal sampling plan of GB/T2828, and the special inspection level S-1 is adopted. 5.1.2 The samples are randomly selected from the qualified products produced by the factory in the past year. No less than 9 sets are selected as an inspection batch when sampling in the factory, and this limit does not apply when sampling at the sales department or user. Grinding rollers and rotors of wheat washing machines or wheat threshers are selected from the factory finished product warehouse or production line.
5.1.3 Two sets of complete sets of equipment are selected, and two pieces of grinding rollers and rotors of wheat washing machines or wheat threshers are selected. 5.2 Classification of unqualified items
5.2.1 If the inspection items do not meet the requirements of Table 1 and Table 2, they are all considered unqualified. 5.2.2 Non-conformities are classified into three categories: A, B, and C according to their impact on product quality. Category A refers to non-conformities that have a significant impact on product performance, Category B refers to non-conformities that have a significant impact on product performance, and Category C refers to non-conformities that have a slight impact on product performance. See Table 5 for non-conformity classification. 5.3 Assessment rules
5.3.1 Each item is assessed, and the lowest level of each type of non-conformity in the non-conformity classification table is determined as the product level 5.3.2 The sampling judgment scheme is shown in Table 6. In the table, AQL is the qualified quality level, Ac is the qualified judgment number, and Re is the unqualified judgment number. Table 1 Product performance indicators
Power consumption per ton of flour
kw·h/t
Production of special first-class flour
Production of special second-class flour
Joint production of special first-class flour
and standard flour
Production of standard flour
Processing hard wheat
Processing soft wheat
Processing hard wheat
Processing soft wheat
Processing hard wheat
Processing soft wheat
Table 1 (end)
Quality grading indicators
Qualified products
First-class products
Superior products
≤ 56
Quality grading index
Flour extraction rate
Production of special first-class flour
Production of special second-class flour
Joint production of special first-class flour
and standard flour
JB/T51219—2000
Processing hard wheat
Processing soft wheat
Processing hard wheat
Processing soft wheat
Processing hard wheat
Processing soft wheat
Production of standard flour
Production of special first-class flour
Grinding roller centimeter-hour output
kg flour/(cmh)
Flour quality
Dust concentration
Maximum temperature of milled material
Grinding Maximum bearing temperature rise of flour mill
Wheat ash reduction
Wheat crushing rate
Reliability
Production of special second-grade flour
Joint production of special first-grade flour
and standard flour
Production of standard flour
Processing accuracy
Ash content%
(based on dry matter)
Coarseness
Gluten quality
(based on wet weight)
Sand content
Magnetic metal
Moisture%
Odor, taste
Note: For the complete set of grade flour equipment for joint production of special first-grade flour and standard flour, qualified products
First-grade products
Superior products
≥ 74
Should reach the theoretical flour extraction rate
Should meet the index requirements of the corresponding grade of flour in GB1355
(1) The flour extraction rate and the output per hour of the grinding roller are calculated based on the sum of the special first-class flour and the standard flour: (2) The output of the special first-class flour must not be less than 50% of the total flour: (3) Any unqualified item in any inspection item of flour shall be deemed as unqualified in the flour quality item Table 2 Product assembly, appearance, and key component assessment table Serial number
Quality grading index
≥008
≥010
Average thickness of the gap between the two grinding wheels
Coating adhesion
Surface coating appearance quality||tt ||Hardness of grinding roller working surface
Depth of white layer of grinding roller
Static balance of rotors of wheat washing machine and wheat thresher
JB/T51219—2000
Qualified products
Check three points, all reach level 2
Uniform color,
Smooth and flat,
No exposed bottom, blistering or wrinkling
First-class products
Check three points, two points reach
Level, one point reaches level 2
Superior products
Check three points, all reach level 1
Bright color, smooth and flat, no exposed bottom, blemishes, flow marks, blistering or wrinkling
G16 level
3 Product performance test method
Test items
Power consumption per ton of flour
Flour extraction rate
Grinding roller output per centimeter per hour
Processing accuracy
Ash content (in dry matter)
Coarseness
Flour quality
Gluten quality (in wet weight)
Sand content
Magnetic metal
Odor, taste
Dust concentration
Maximum temperature of milled material
Maximum temperature rise of mill bearing
Wheat ash reduction
Wheat crushing rate
Reliability
Test items|| tt||Test method
According to the provisions of 3.4.5 of JB/T8838.2-1999According to the provisions of 3.4.3 of JB/T8838.2-1999According to the provisions of 3.4.2 of JB/T8838.2-1999According to the provisions of 3.3.5 of JB/T8838.2-1999According to the provisions of GBT5504
According to the provisions of GBT5505
According to the provisions of GBT5507
According to the provisions of GBT5506
According to the provisions of GBT5508
According to the provisions of GBT5509
According to the provisions of GBT5497| |tt||According to the provisions of GBT5492
According to the provisions of 3.3.6 in JB/T8838.2-1999, test the material under the grinding roller of each grinding
Measure with a point thermometer in the middle of the bearing housingAccording to the provisions of 3.3.25 in JBT8838.2-1999According to the provisions of 3.3.24 in JBT8838.2-1999According to the provisions of 4.1.3 in JB/T50195-2000Assemble,
Appearance and key parts inspection method
Testing method
Gap between two grinding rollers of grinding mill
Coating adhesion
Surface coating appearance quality| |tt||Hardness of grinding roller working surface
Depth of grinding roller white layer
Static balance of rotors of wheat washing machine and wheat thresher
Unqualified classification
Unqualified classification
JB/T51219—2000
According to the provisions of 5.3 in JBT5680—1991
According to the relevant methods specified in JB/T56
Test according to the method specified in A3.2 in Appendix A of JB/T5680—1991 or cut a 20mm thick test piece at each end of the grinding roller, and evenly hit four points between 4-6mm from the surface. On the premise that the hardness values ​​of each point are within the standard range, take the average value
Measure with a ruler at both ends of the finished product
Use a blade V-shaped frame (or a special balance frame) and a balance to measure Table 5 Unqualified classification table
Item name
Safety requirements
Flour processing accuracy
Magnetic metal objects in flour
Power consumption per ton of flour
Flour extraction rate
Grinding roller output in cm per hour
Dust concentration
Maximum temperature of the material under grinding
Flour coarseness
Flour ash content
Flour gluten quality
Flour sand content
Grinding roller working surface hardness
Reliability
Flour moisture
Flour Powder smell and taste
Wheat ash reduction
Wheat crushing rate
Maximum bearing temperature rise of grinding mill
Gap between two grinding wheels of grinding mill
Coating adhesion
Surface coating appearance quality
Grinding wheel white layer depth
Static balance of rotors of wheat washing machine and wheat thresher
Table 6 Sampling judgment table
Sampling plan
Qualified products
First-class products
Superior products
Batch N
Sample size n
Inspection level
Sample code
1When the inspection items change, the AQL value remains unchanged. JB/T51219—2000
2 The noise and dust concentrations are respectively taken from the highest values ​​of the wheat room and the flour room for determination 2
Mechanical Industry Standard
Small Flour Processing Equipment
Product Quality Classification
(Internal Use)
JB/T51219—2000
Published and Distributed by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(Beijing Capital Gymnasium South No. 2 Road, Postal Code 100044)*
1/16 Printing sheet 3/4 Number of words 14.000
Format 880×1230
First edition in August 2000
Print run 1-500
First printing in August 2000
Price 1500 yuan
2000-105
Mechanical Industry Standard Service Network: http/kvwwJB.ac.cn0006cn0006cn00065 According to the provisions of GBT5504
According to the provisions of GBT5505
According to the provisions of GBT5507
According to the provisions of GBT5506
According to the provisions of GBT5508
According to the provisions of GBT5509
According to the provisions of GBT5497
According to the provisions of GBT5492
According to the provisions of 3.3.6 in JB/T8838.2-1999, test the material under the grinding roller of each grinding
Measure with a point thermometer in the middle of the bearing housing According to the provisions of 3.3.25 in JBT8838.2-1999 According to the provisions of 3.3.24 in JBT8838.2-1999 According to JB/T5019 5-2000, 4.1.3, assembly,
Appearance and key parts inspection method
Testing method
Gap between two grinding rollers of grinding mill
Coating adhesion
Appearance quality of surface coating
Working surface hardness of grinding roller
Deepness of white layer of grinding mill
Static balance of rotors of wheat washing machine and wheat thresher
Unqualified classification
Unqualified classification
JB/T51219-2000
According to the provisions of 5.3 of JBT5680-1991
According to the relevant methods specified in JB/T56
According to the method specified in A3.2 of Appendix A of JB/T5680-1991 or Cut a 20mm thick test piece at both ends of the grinding roller, and evenly hit four points at a distance of 4-6mm from the surface. On the premise that the hardness values ​​of each point are within the standard range, take the average value. Measure with a ruler at both ends of the finished product. Use a blade V-shaped frame (or a special balance frame) and a balance to measure Table 5 Unqualified classification table Project name Safety requirements Flour processing accuracy Magnetic metal objects in flour Power consumption per ton of flour Flour extraction rate Grinding roller Output per centimeter per hour Dust concentration Maximum temperature of the milled material Coarseness of flour Ash content of flour Gluten quality of flour Sand content of flour Grinding roller working Surface hardness
Reliability
Flour moisture
Flour smell and taste
Wheat ash reduction
Wheat crushing rate
Maximum bearing temperature rise of grinding mill
Gap between two grinding mills of grinding mill
Coating adhesion
Surface coating appearance quality
Grinding mill white cut layer depth
Static balance of rotors of wheat washing machine and wheat thresher
Table 6 Sampling judgment table
Sampling plan
Qualified products
First-class products
Superior products
Batch N
Sample size n
Inspection level
Sample code
1When the inspection items change, the AQL value remains unchanged. JB/T51219—2000
2 The noise and dust concentrations are respectively taken from the highest values ​​of the wheat room and the flour room for determination 2
Mechanical Industry Standard
Small Flour Processing Equipment
Product Quality Classification
(Internal Use)
JB/T51219—2000
Published and Distributed by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(Beijing Capital Gymnasium South No. 2 Road, Postal Code 100044)*
1/16 Printing sheet 3/4 Number of words 14.000
Format 880×1230
First edition in August 2000bzxZ.net
Print run 1-500
First printing in August 2000
Price 1500 yuan
2000-105
Mechanical Industry Standard Service Network: http/kvwwJB.ac.cn00065 According to the provisions of GBT5504
According to the provisions of GBT5505
According to the provisions of GBT5507
According to the provisions of GBT5506
According to the provisions of GBT5508
According to the provisions of GBT5509
According to the provisions of GBT5497
According to the provisions of GBT5492
According to the provisions of 3.3.6 in JB/T8838.2-1999, test the material under the grinding roller of each grinding
Measure with a point thermometer in the middle of the bearing housing According to the provisions of 3.3.25 in JBT8838.2-1999 According to the provisions of 3.3.24 in JBT8838.2-1999 According to JB/T5019 5-2000, 4.1.3, assembly,
Appearance and key parts inspection method
Testing method
Gap between two grinding rollers of grinding mill
Coating adhesion
Appearance quality of surface coating
Working surface hardness of grinding roller
Deepness of white layer of grinding mill
Static balance of rotors of wheat washing machine and wheat thresher
Unqualified classification
Unqualified classification
JB/T51219-2000
According to the provisions of 5.3 of JBT5680-1991
According to the relevant methods specified in JB/T56
According to the method specified in A3.2 of Appendix A of JB/T5680-1991 or Cut a 20mm thick test piece at both ends of the grinding roller, and evenly hit four points at a distance of 4-6mm from the surface. On the premise that the hardness values ​​of each point are within the standard range, take the average value. Measure with a ruler at both ends of the finished product. Use a blade V-shaped frame (or a special balance frame) and a balance to measure Table 5 Unqualified classification table Project name Safety requirements Flour processing accuracy Magnetic metal objects in flour Power consumption per ton of flour Flour extraction rate Grinding roller Output per centimeter per hour Dust concentration Maximum temperature of the milled material Coarseness of flour Ash content of flour Gluten quality of flour Sand content of flour Grinding roller working Surface hardness
Reliability
Flour moisture
Flour smell and taste
Wheat ash reduction
Wheat crushing rate
Maximum bearing temperature rise of grinding mill
Gap between two grinding mills of grinding mill
Coating adhesion
Surface coating appearance quality
Grinding mill white cut layer depth
Static balance of rotors of wheat washing machine and wheat thresher
Table 6 Sampling judgment table
Sampling plan
Qualified products
First-class products
Superior products
Batch N
Sample size n
Inspection level
Sample code
1When the inspection items change, the AQL value remains unchanged. JB/T51219—2000
2 The noise and dust concentrations are respectively taken from the highest values ​​of the wheat room and the flour room for determination 2
Mechanical Industry Standard
Small Flour Processing Equipment
Product Quality Classification
(Internal Use)
JB/T51219—2000
Published and Distributed by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(Beijing Capital Gymnasium South No. 2 Road, Postal Code 100044)*
1/16 Printing sheet 3/4 Number of words 14.000
Format 880×1230
First edition in August 2000
Print run 1-500
First printing in August 2000
Price 1500 yuan
2000-105
Mechanical Industry Standard Service Network: http/kvwwJB.ac.cn0006
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