HG/T 2042-1991 Technical requirements for soda ash packaging machines
Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T2042—91
Technical Conditions for Soda Ash Packaging Machine
Published on July 6, 1991
Ministry of Chemical Industry of the People's Republic of China
Implemented on January 1, 1992
Chemical Industry Standard of the People's Republic of China
Technical Conditions for Soda Ash Packaging Machine
Subject Content and Scope of Application
HG/T2042—91
This standard specifies the technical requirements, test methods and inspection rules for soda ash packaging machines (hereinafter referred to as packaging machines). This standard applies to packaging machines that package light and heavy soda ash with good fluidity and whose packaging materials are coated plastic woven bags. 2. Reference standards
Tolerances of shape and position Provisions for tolerances not specified GB1184
Short pitch precision roller chains and sleeve chains for transmission Tooth forms and tolerances of sprockets GB1244
GB1804
GB3768
GB3797
GB4122
GB5035
GB-7311
Tolerances and fits Limit deviations of dimensions without tolerances Simple method for determining the sound power level of noise sources
Electronic control equipment Part 2 General terms for packaging of electronic devices for electronic control equipment
Terms for packaging machinery|| tt||Method for compiling packaging machinery models
Precision of involute cylindrical gears
GB10095
GB10595
GB11365
Technical conditions for belt conveyors
Precision of bevel gears and bevel hypoid gears
HG5-1585
HGJ203
Technical conditions for packaging of chemical machinery parts
General provisions for construction and acceptance of chemical machinery installation projectsJB8 product labels
JJG731
Quantitative automatic weighing instruments
National metrological verification procedures||tt ||Terms are in accordance with GB4122 and GB5035
4 Basic parameters and models
Production capacity (see Table 1)
Approved by the Ministry of Chemical Industry of the People's Republic of China on July 6, 1991 and implemented on January 1, 1992
Number of quantitative packaging scales
Light soda ash
HG/T2042-91
Load range
Heavy soda ash
The maximum tolerance corresponding to the accuracy grade of quantitative packaging scales is shown in Table 2. Table 2
Accuracy grade
Verification weighing
Empty scale, each quantitative value| |tt||Empty scale, each quantitative value
Empty scale, each quantitative value
Empty scale, each quantitative value
Model compilation shall be in accordance with the provisions of GB7311,
5 Measurement requirements
Particle size: particles smaller than 0.074mm shall not exceed 13%; moisture: not more than 0.1%;
Temperature shall not be higher than 90℃
5.2 Packaging bags
Light soda ash
Production capacity
Heavy soda ash
Verification during use
Polypropylene woven bags shall be coated as needed, the coating shall be between 0.4~0.6mm, and the bag mouth shall be flat. 5.3 Operating environment
Temperature 0~40c;
Relative humidity not more than 80% (at 25℃); height not more than 1000m above sea level;
The control cabinet should be isolated from the site, and the environment should be kept dry, free of obvious dust, corrosive dust and gas. d.
5.4 Power supply
It can work reliably within the range of power supply voltage deviation -15%~+10% and frequency deviation ±2%. 5.5 Air source
The compressed air should be dry and pure, and should work reliably when the pressure is 0.4~0.6MPa. Material
HG/T2042-91
5.6 Dust collection should not be able to sound the disc accuracy, and the vacuum cleaner should have sound and light alarm when it stops. 5.7 There should be no leakage in the lubrication, air control and other systems, and the soda ash should not be contaminated. 5.8 Other influencing factors should also meet the requirements of Article 4.2. 6 Technical requirements
In addition to meeting the requirements of this standard, they should also meet the requirements of relevant drawings. 6.1 Materials
All parts in contact with materials must be made of non-magnetic stainless steel: non-toxic and chemically stable materials. Materials must have quality certification documents
6.2 Instruments and electrical appliances
6.2.1 The output switch life of the programmable controller shall not be less than 107 times, 6.2.2 The mechanical life of the contactor and relay shall not be less than 107 times, 6.2.3 The electrical components installed on the host should be able to work normally in an environment with material dust. 6.3 Manufacturing
6.3.1 The welds on the inner wall of the equipment in contact with the material must be ground to the same height as the parent material. 6.3.2 Electrical control boxes and cabinets shall comply with Article 3.11.1 of GB3797. 6.3.3 Requirements for electrical control cabinets
Insulation resistance test shall be in accordance with Article 4.3 of GB3797; a. The safety distance shall not be less than 8mm, and the fertilizer distance shall not be less than 10mm; b.
The phase-to-phase dielectric strength shall not be less than 2500V
6.3.4 Rotary feeder
The rotor must rotate flexibly and smoothly without any jamming; b. The coaxiality tolerance between the rotor and the shell shall be in accordance with Class C in Table 2 of GB1184. 6.3.5 Double screw feeder
. The large and small screws shall rotate flexibly and shall not rub or collide with the shell; the cylinder axis and the axis of the large conical valve, large hopper and discharge port shall be in a straight line; the cylinder axis and the axis of the small conical valve, small b.
hopper and discharge port shall be in the same straight line. Taking the axis of the discharge port as the reference, the coaxiality shall comply with the C-level requirements in Table 2 of GB1184;
c. The distance between the double screw feeder and the inner barrel body should be within the range of 4~5mm. 6.3.6 The scale body is
high, the bottom plate valve should be flexible to open and close, and there should be no leakage around the joint with the inner barrel body. The contact gap between the bottom valve plate and the bottom surface of the inner barrel body is 0~2.5mm, and the gap around the inner and outer barrels is 4~13mm; b. The free rotation angle of the connecting bearing between the scale barrel and the sensor shall not be less than 12° 6.3.7 Bag clamping device
The inner surface of the bag clamping cylinder sprayed with polytetrafluoroethylene should be firmly attached and smooth, and the thickness of the covering layer should be not less than 0.2mm. After the bag clamp is assembled, it should be guaranteed to work flexibly.
6.3.8 The manufacture of belt conveyors shall comply with the provisions of GB10595. 6.3.9 The shock-absorbing bolts, rubber and steel plates are used to connect the shock-absorbing plate and the support bracket. After bonding, the shear strength shall not be less than 19MPa. 6.3.10 Folding sealing machine
6.3.10.1 The manufacture and acceptance of gears shall comply with the provisions of grade 8 accuracy in GB10095. 6.3.10.2 The manufacture and acceptance of sprockets shall comply with the provisions of GB1244. 6.3.10.3 The groove centers of the two transmission V-belt wheels shall be installed in the same horizontal plane, and the runout tolerance of the working surface shall not exceed 0.1mm. 6.3.10.4 The V-belt should be installed with moderate tightness, and can be pressed in 15~20mm in the middle along the direction perpendicular to the outer surface of the belt. HG/T2042-91
6.3.10.5 The chain roller should rotate flexibly, and the chain should be installed with moderate tightness, and can be pressed in 8~10mm in the middle along the direction perpendicular to the outer side of the chain.
6.3.10.6 After assembly and after disengaging the active V-belt pulley, the hand-pulling conveyor chain can make the passive V-belt pulley rotate. 6.3.10.7 The conveying speed of the conveyor chain is adjustable, and must be synchronized with the belt conveyor and sewing speed during operation. 6.3.10.8 Sewing mechanism
The force exerted by the hand wheel on the folding and sewing mechanism to move up and down on the column shall not exceed 98N; the sewing center shall be on the extension line of the folding center line, and the limit deviation shall not exceed ±2mm; the active and passive V-belt pulleys and the wheel groove centers shall be adjusted on the same horizontal plane, and the working surface runout shall not exceed 0.1mm; the V-belt shall be installed with moderate tightness, and the middle part shall be pressed in 15~20mm along the direction perpendicular to the outer surface of the V-belt; the sewing speed, folding speed and belt conveyor speed shall be synchronized, and the sewing stitch length shall be uniform without skipping or broken thread affecting the appearance and sealing quality;
The manufacturing and acceptance of bevel gears shall comply with the 8th grade accuracy in GB11365. The unmarked dimension tolerance in 6.3.11 shall comply with the IT14 grade in GB1804. The unmarked coaxiality tolerance shall comply with the C grade in Table 2 of GB1184.6.4 Installation
In addition to complying with HGJ203, the installation of the packaging machine shall also comply with the following requirements: 6.4.1 The contact surface of the conveyor belt of the packaging port and folding mechanism shall be in a straight line with the line of the sewing machine stitches, and the limit deviation shall not exceed ±2mm.
6.4.2 The parallelism tolerance of the positioning reference surface of the main body bracket relative to the horizontal plane shall not exceed 1.5mm. 6.4.3 Adjust the distance between the shock plate and the guide plate to 270mm. 6.4.4 Electrical control device:
a. There shall be no exposed live parts;
b. The verticality of the control cabinet installation shall not exceed 0.5%; a passage of more than 1000mm shall be left on the front of the control cabinet, C
6.4.5 The execution machinery (motor, electromagnetic chest, cylinder) shall respond sensitively and move accurately after receiving instructions. 6.4.6 The working noise of the packaging machine shall not exceed 85dB (A sound level) 6.5 The outer surface of the parts (except stainless steel fasteners) without the anti-corrosion requirements shall be coated with epoxy ester primer and then amino enamel paint for anti-corrosion. The inner surface of stainless steel in contact with soda ash shall be pickled and passivated. 6.6 The soda ash content in the air measured at 1m from the bagging port shall not exceed 10mg/m2, and the soda ash content at the exhaust port of the dust collector shall not exceed 30mg/m3
6.7 The packaging machine shall be away from various strong interference sources such as impact, vibration, and electromagnetic. 7 Tests
7.1 Idle operation test
The no-load linkage test of the packaging machine shall be completed according to the pre-compiled program except for the dust removal system, quantitative packaging scale, manual supply of packaging bags, folding, and sealing of bag mouths, etc., to realize the whole process of packaging technology; 7.2 Soda ash packaging test
Process,
The packaging machine shall be able to automatically weigh, manually supply packaging bags, fold, sew bag mouths, etc., to realize the whole process of packaging technology. Each continuous packaging is 15min, and it shall be done four times in total. The total number of packaging is the production capacity, which shall comply with the provisions of Article 4.1; b.
c. The weighing accuracy test shall be carried out in accordance with the provisions of JJG731 and shall comply with the provisions of Article 4.2.7.3 The reliability test of the packaging machine shall be carried out during the use of the user. The sum of the working time and the maintenance time shall not be less than 7200h, and the availability A value shall be calculated using the following formula:
HG/T2042-91
Working time
Working time + maintenance time
The reliability test of the packaging machine can be confirmed by the statutory inspection department and the inspection results of the user can be confirmed. 8 Inspection rules
8.1 Factory inspection
Articles 7.1 and 7.2 are factory inspection items and shall include: a. The appearance of the electrical cabinet shall comply with Article 4.2 of GB3797; b.
The paint on the outer surface of the packaging machine shall be uniform and drip-free. 8.2 Type inspectionWww.bzxZ.net
8.2.1 The inspection items shall be carried out in accordance with the requirements of this standard. 8.2.2
Type inspection shall be carried out in any of the following situations: trial production and identification of new products or old products transferred to the factory for production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance; during batch production, one unit shall be sampled for inspection every year: when production is stopped for one year and then resumed:
When there is a significant difference between the factory inspection result and the last type inspection result; when the national quality supervision agency proposes a requirement for type inspection, 9
Marking,
Packaging, transportation and storage
9.1 Marking
The packaging machine must have a label fixed on a conspicuous position on the main frame, and the type and size of the label shall comply with the provisions of JB8. 9.1.2 Contents of product label
Manufacturer name;
Product name, model or mark;
Product serial number and year and month of manufacture;
Main technical parameters: such as load range, accuracy level of quantitative packaging scale, temperature range, relative humidity, altitude, power supply voltage, frequency, production capacity, etc. 9.2 Packaging
The packaging machine shall be packed with plastic film cover and packaging box. 9.2.1
Before the packaging machine is packed into the packaging box, the exposed surface of the parts (except stainless steel) shall be treated with rust prevention. 9.2.2
The packaging machine is allowed to be packed in groups according to parts; the parts shall be fixed in the box, and the electrical components installed on the main machine shall be packed in plastic bags and then packed in wooden boxes. The packaging box shall be marked with
Product model and name;
Manufacturer name;
Product serial number;
"Moisture-proof", "Shockproof", "Upward", "Precision Instrument" Equipment\words; Gross weight of the packing box, kg:
Name of the shipping station and the destination station;
Receiving unit:
Lifting mark.
The documents accompanying the packing box should include:
Instruction manual of the packing machine;
HG/T2042-91
Product certificate (including the main measured data of the factory inspection); Packing list;
List of random accessories;
General drawing and relevant installation information,
The packing machine in operation There shall be no violent vibration, collision, or dumping during transportation. The storage temperature shall be room temperature. The packaging equipment shall not collide or be stacked in more than two layers. Additional Notes: This standard was proposed by China National Chemical Equipment Corporation and is under the jurisdiction of the Chemical Machinery and Equipment Standardization Technical Unit of the Ministry of Chemical Industry. This standard was drafted by Wuxi Chemical Machinery Factory and Nanjing First Chemical Instrument Factory. The main drafters of this standard are Yang Zhicheng and Li Xubao. Chemical Industry Standard of the People's Republic of China |tt||Technical conditions for soda ash packaging machine
HG/T2042-91
Editorial Department of Chemical Industry Standards
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100013
Printing 1. Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×12301/16 Printing Sheet 1/2 Number of Words 11000 First Edition in September 1992 First Printing in October 1992 Number of Prints】—5002 Contents of product label
Manufacturer name;
Product name, model or mark;
Product serial number and year and month of manufacture;
Main technical parameters: such as load range, accuracy level of quantitative packaging scale, temperature range, relative humidity, altitude, power supply voltage, frequency, production capacity, etc. 9.2 Packaging
The packaging machine shall be packed with plastic film cover and packaging box. 9.2.1
Before the packaging machine is packed into the packaging box, the exposed surface of the parts (except stainless steel) shall be treated with rust prevention. 9.2.2
The packaging machine is allowed to be packed in groups according to parts; the parts shall be fixed in the box, and the electrical components installed on the main machine shall be packed in plastic bags and then packed in wooden boxes. The packaging box shall be marked
Product model and name;
Manufacturer name;
Product serial number;
"Moisture-proof", "Shockproof", "Upward", "Precision Instrument" Equipment\words; Gross weight of the packing box, kg:
Name of the shipping station and the destination station;
Receiving unit:
Lifting mark.
The documents accompanying the packing box should include:
Instruction manual of the packing machine;
HG/T2042-91
Product certificate (including the main measured data of the factory inspection); Packing list;
List of random accessories;
General drawing and relevant installation information,
The packing machine in operation There shall be no violent vibration, collision, or dumping during transportation. The storage temperature shall be room temperature. The packaging equipment shall not collide or be stacked in more than two layers. Additional Notes: This standard was proposed by China National Chemical Equipment Corporation and is managed by the Chemical Industry Ministry's Chemical Machinery and Equipment Standardization Technical Management Unit. This standard was drafted by Wuxi Chemical Machinery Plant and Nanjing First Chemical Instrument Plant. The main drafters of this standard were Yang Zhicheng and Li Xubao. Chemical Industry Standard of the People's Republic of China |tt||Technical conditions for soda ash packaging machine
HG/T2042-91
Editorial Department of Chemical Industry Standards
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100013
Printing 1. Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×12301/16 Printing Sheet 1/2 Number of Words 11000 First Edition in September 1992 First Printing in October 1992 Number of Prints】—5002 Contents of product label
Manufacturer name;
Product name, model or mark;
Product serial number and year and month of manufacture;
Main technical parameters: such as load range, accuracy level of quantitative packaging scale, temperature range, relative humidity, altitude, power supply voltage, frequency, production capacity, etc. 9.2 Packaging
The packaging machine shall be packed with plastic film cover and packaging box. 9.2.1
Before the packaging machine is packed into the packaging box, the exposed surface of the parts (except stainless steel) shall be treated with rust prevention. 9.2.2
The packaging machine is allowed to be packed in groups according to parts; the parts shall be fixed in the box, and the electrical components installed on the main machine shall be packed in plastic bags and then packed in wooden boxes. The packaging box shall be marked
Product model and name;
Manufacturer name;
Product serial number;
"Moisture-proof", "Shockproof", "Upward", "Precision Instrument" Equipment\words; Gross weight of the packing box, kg:
Name of the shipping station and the destination station;
Receiving unit:
Lifting mark.
The documents accompanying the packing box should include:
Instruction manual of the packing machine;
HG/T2042-91
Product certificate (including the main measured data of the factory inspection); Packing list;
List of random accessories;
General drawing and relevant installation information,
The packing machine in operation There shall be no violent vibration, collision, or dumping during transportation. The storage temperature shall be room temperature. The packaging equipment shall not collide or be stacked in more than two layers. Additional Notes: This standard was proposed by China National Chemical Equipment Corporation and is under the jurisdiction of the Chemical Machinery and Equipment Standardization Technical Unit of the Ministry of Chemical Industry. This standard was drafted by Wuxi Chemical Machinery Factory and Nanjing First Chemical Instrument Factory. The main drafters of this standard are Yang Zhicheng and Li Xubao. Chemical Industry Standard of the People's Republic of China |tt||Technical conditions for soda ash packaging machine
HG/T2042-91
Editorial Department of Chemical Industry Standards
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100013
Printing 1. Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×12301/16 Printing Sheet 1/2 Number of Words 11000 First Edition in September 1992 First Printing in October 1992 Number of Prints】—500
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