Some standard content:
1C923.168
Machinery Industry Standard of the People's Republic of China
JB/T10207-2000
Rake vacuum dryer
2000-08-31 Issued
National Machinery Industry Bureau
2000-12-01 Implementation
JD/T10207--2000
Appendix A of this standard is the appendix of the standard.
This standard is proposed and managed by the Machinery Industry Equipment Standardization Technical Committee, and the drafting unit of this standard is Yanbo Vacuum Equipment Factory. The main drafters of this standard are Liu Xiangquan, Xu Fajian, Xu Jianzhuang, and Yan Hongshun. This standard was first issued in August 2000.
■Scope
Machinery Industry Standard of the People's Republic of China
Raka vacuum dryer
FB/T10207-2000
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements of vacuum dryers.
This standard is applicable to typical vacuum dryers (hereinafter referred to as vacuum dryers) with saturated steam as the heating medium, no-load vacuum limit of less than 2000Pa, and allowable working pressure of less than 6M. Other types of vacuum dryers can refer to this standard. 2 Cited Standards
The provisions contained in the following standards are cited in this standard and constitute the text of this standard. When this standard is published, the versions shown are effective. All standards will be revised. All parties using this standard should consider the possibility of using the latest version of the following standards. B150-198
OB[9]1991
GB.T376B1996
GB/T 3306
SJ-T[06741995
3 Type and basic parameters
3. Conclusion Type
3.1.! The dryer is horizontal.
Steel pressure vessel
Packaging storage and transportation pictorial mark
Acoustic sound method to determine the sound power level of the noise source area using the envelope measurement surface of the simple elimination sign
Paint coating waist general technical regulations
3.1.2 The dryer mainly consists of the air chamber (i.e. the air curtain), vacuum air system, mixing transmission system, and electronic control system. 3.1.3 Requirements for the materials to be dried. The vacuum chamber can be made of stainless steel and carbon steel. 3.2 Model designation method
3.2.1 Designation
3.2.2 Model example
Improvement design sequence code (A, B, C.) - vacuum chamber volume of dryer, L
Use the Chinese pronunciation of "杷式" (the first capital letter P) to indicate the Chinese pronunciation of "空" (the first capital letter B) to indicate the Chinese pronunciation of "工" (the first capital letter G) to indicate the capacity of the dryer. The first design change of the target point dryer is marked as: G7P-2000A
Approved by the State Machinery Industry Bureau on 2000-0S-31 and implemented on 2000-1Z-D1
3. 3 Basic technical parameters
JB/T10207—2000
The basic parameters of the dry blasting machine shall comply with the provisions of Table 1. Table
GZP-J00
G7P500
GzpJUU
GZP-2000
GZP-4000
4 Requirements
Vacuum child gauge hunting
0400x800
$660 ×1609
8UU x 20KXa
$tD00×2600
$1250×3500
Vacuum chamber boost pressure
Pa/min
Basic parameters
Target gear rotation
+wa strength
kgrn')
Rotating motor power
4.1: The machine should meet the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures or the agreement between the supply and demand parties. 4.2 Requirements for environmental conditions
) The ambient temperature is not higher than 40℃:
b Power supply: 380 three-phase 50Hz or 220Y single-phase 50Hz1 Determined by the electrical equipment used. Passive range: [360-399)V (198-231)V: Frequency range: (49-57)Hz4.3 Structural requirements
4.3.1 Reasonable layout, beautiful appearance, easy operation and maintenance. 4.3.2 The structural design of the vacuum chamber shall comply with the provisions of GB150. 4.3.3 The distance between the rotating gear and the cylinder shall not be less than 8mm4.4 Appearance quality
4.4.1 The coating quality shall comply with the requirements of 5J/T174 for the coating appearance quality. 4.4.2 The sealing edges of all parts shall be open.
4,4,3 All seams shall be smooth and beautiful.
4.5 Vacuum cutting technical performance
4.5.1 The noise reduction during equipment operation shall comply with the provisions of Table 1. 4.5.2 The equipment speed shall comply with the provisions of Table【. 4. 6 Load performance
4,6.1 When the flammability test is carried out according to the drying conditions of Appendix A (Standard Appendix), the low intensity discharge shall comply with the provisions of Table 1. 4.62 The dryer shall be able to meet the requirements of other material drying within the scope of use. 4.7 Safety protection
4.7.1 A manual peripheral door (or electric door) shall be installed between the vacuum chamber and the air system. The electric valve can close automatically in the event of a sudden power failure. A mechanical automatic valve shall be installed before the manual chest door to prevent automatic closure in the event of a sudden power failure [when using a water ring vacuum pump, it can prevent water from flowing back]. 4.7.2 Exposed pulleys, etc. shall have reliable protective devices. 4.7.3 The equipment and its attached partitions shall be equipped with signs and markings necessary for operation and safety. The materials and engraving methods for making labels or marks should be able to keep the characters clear during the service life of the equipment. 4. Under the condition that the user complies with the storage and use regulations of the blasting machine, the blasting machine shall be used for no less than 50 hours. 2
5 Test method
5.1 Ultimate pressure in vacuum chamber
JB/T10207—2000
a) The vacuum chamber is unloaded (no drying material is placed and no drying is carried out). The vacuum gauge used must be calibrated for fuel gas by a calibration unit approved by the state and shall be within the validity period:) During the gas flow, the motor should be turned on and measured at the same time: d) The ultimate pressure in vacuum chamber shall be measured within 24 hours of starting the machine. When the test result shows that the pressure passiveness does not exceed 5% every 30 minutes, the stable minimum pressure value is the ultimate pressure. 5.2.1 ... The pressure reading is to be in the valid digits; d) By opening and closing the valve and vacuum pumps between the vacuum chamber and the vacuum system, the test of b) can be repeated, and the values obtained in succession are substituted into formula (1) to calculate the average value, which is the rise and fall of the vacuum chamber system:
Where: - leakage rate of the vacuum chamber system, PaL/s; 4p - pressure increment, Pa, AprP, -Pi:
The pressure increment is 47--.
5.3 The noise of the equipment is measured by an internal level meter, that is, the noise value of no less than four points around the prototype is measured at a distance of 1 meter from the surface of the equipment and 1.5 meters from the ground, and the average value is taken. The noise of the back system is processed according to the requirements of 8.2 of GB 3763-1996. 54 Dryer feasibility test is carried out at the test point specified by the laboratory or the user, and a report is submitted. The result should comply with the provisions of 4.8.
6 Inspection rules
6.1 Each equipment and its accessories must be inspected by the manufacturer's inspection department in accordance with this standard and technical documents, and can only be shipped with a product certificate signed by the inspection department and inspection personnel. In addition to the product quality certificate, the pressure vessel-related certificate test report should also be attached when leaving the factory. 6.z Equipment inspection is divided into product factory inspection and type inspection. 6.2. 1 Factory inspection
6.2.1.1 Product factory inspection should be carried out, that is, no less than 2b of no-load running test, as well as 4.3.1, 4.3.2, 4.3.34.4.1, 4.4.2, 4,4.34.5.1, 4.5.2, 4.7.1, 4.7.2, 4.7.3.4.7, 4.7.4, 4.7.5 and 4.7.6. 6.2.1.2 If any one of the factory inspection items is unqualified, the product shall be unqualified. 6.2.2 Type inspection
6.2.2.1 When the product belongs to one of the conditions in column F, a type inspection shall be carried out: a) When the product is trial-produced or transferred to production:
6) When the product is resumed after 2 years of suspension;
c) When the normal production is stopped, every 100 units are produced:
JB/T1020T—2000
) When there are major changes in the structure, material, and process of the product; e) When the national quality supervision agency proposes a type test requirement. 6.2.2.2 In addition to the contents of factory inspection, the type inspection of products shall also include the inspection of 4.6.1. 6.2.2.3 When 4.6.1 cannot be inspected due to objective reasons, 4.6.2 can be used as a substitute. 6.2.2.4 The prototype for type inspection shall be randomly selected from the finished product warehouse (manufacturing). When 4.6.2 is inspected, materials and prototypes can be selected at any time by the relevant personnel. 6.2.2.5 During type inspection, if one item fails, double sampling shall be conducted to re-inspect the item. If one item still passes, the item shall be re-inspected. 6.1 The various measuring tools used in the inspection shall have qualification certificates. During type or inspection, the test objects shall only have valid test certificates. Marking, packaging, transportation and storage
7.1 Marking
7.1.1 Product marking
Showcase equipment and common accessories should be equipped with signs in their obvious parts. The type, size and technical requirements should comply with the provisions of GB13306. The content includes
a) Manufacturer's name and address
b) Product name:
c) Trademark:
) Product model:
Product factory number, production contract number:
Main function of fertilizer products.
7.1.2 Packaging marking
The product packaging material should have signs such as shipping, packaging and storage methods. The packaging mark shall comply with the definition of GD[91. 7.2 Packaging
7.2.1 If the product is packed in a box, the product is fixed and reliable in the box, and the packaging should be able to withstand rain. 7.2.1 The documents accompanying the product shall include:
a) Product certificate:
b) Product instruction manual (including product installation diagram) ) Packing list (including random spare parts, T information sheet) 7.3 Transportation
1.3. There shall be effective measures to prevent accidents during transportation. 1.3. The equipment and its heavy and largest electric control cabinets and other accessories shall not be placed in a convenient way for product transportation, such as lifting holes, special rings, etc. 4. Storage
7.4. 1. The storage area shall be flat and ventilated, and shall be covered or otherwise provided when stored in open air. 7.4.1 If the storage time exceeds 18 months, maintenance should be carried out. 4
A【Test Instruments】
JB 10207-2090
Appendix A
【Standard Appendix】
Test Method for Dry Explosion Strength of Vacuum Dry Explosion Machine The moisture content of the material is determined by the weight loss method, measured by a pick box, and the reduction is not greater than 105°. The temperature is measured by a thermometer with an error of no more than ±1°.
13 Test Objects
A2.1 The material uses 49%±1% starch [ordinary starch] with a moisture content of 2.2 The material loaded into the machine accounts for 5% of the volume of the test machine. A2.3 Working conditions of dryer a) The dryer is equipped with a vacuum pump and a 2SK type water ring vacuum pump; b) The vacuum is maintained above 100Pa; e) The heat source for drying is saturated steam with a pressure of 0.6MPa A3 Test method When the dryer starts to be charged, charge until the working state specified in A2.2 is reached. After 2 hours, the working state specified in A2.3 is reached, take the first sample from the sampling port, and then take samples every 5 minutes. Take three samples at a ratio of 10mm in sequence, determine the moisture content of each sample, and calculate the arithmetic mean of each sample.
A4 Drying strength calculation
Drying strength is calculated according to formula (AI):
G(w,-w,)
Formula: - combustion intensity, k (m·);Www.bzxZ.net
G Feed as, kg:
Moisture content of finished product before combustion [wet basis)%
W Moisture content of material after thorough drying (moist basis)%
Drying time, h
Volume of material loaded in dryer, m.
Product moisture content before combustion [wet basis] %
Material moisture content after thorough drying (moisture basis) %
Drying time, h
Material volume in dryer, m.
Product moisture content before combustion [wet basis] %
Material moisture content after thorough drying (moisture basis) %
Drying time, h
Material volume in dryer, m.
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