This standard specifies the type, main performance indicators and processing and manufacturing requirements of compound feed processing units. JB/T 7314-1994 Technical conditions for compound feed processing units JB/T7314-1994 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7314-1994
Compound Feed Processing Unit
Published on 1994-07-18
Technical Conditions
Implemented on 1995-07-01
Ministry of Machinery Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Compound Feed Processing Unit
Subject Content and Scope of Application
Technical Conditions
This standard specifies the type, main performance indicators and processing and manufacturing requirements of compound feed processing units. JB/T 73141994
This standard applies to processing units (complete sets of equipment) that process raw materials that need to be crushed and powdered raw materials that do not need to be crushed into powdered compound feed by manual weighing and metering.
Quoted standards
GB/T 1804
GB2828bZxz.net
GB3943
GB5915
GB5916
GB/T 13306
JB/T7315
ZBB93019
Types and performance indicators
General tolerancesUnspecified tolerances for linear dimensions
Batch-by-batch inspectionCount sampling procedures and sampling tables (applicable to inspection of continuous batches)Sieves with round and long holes
Compound feed for piglets and growing and finishing pigs
Compound feed for growing chickens, laying hens and broilersSignage plates
Compound feed processing units
Painting of agricultural machinery
Hammers for hammer mills
Test methods
Compound feed processing units are divided into two types: Type I and Type IⅡ: a.
Type I: used for processing cereal raw materials (i.e. special type); Type II: used for processing cereals, straw and block-shaped raw materials (i.e. general type). Tested according to the relevant provisions of JB/T7315, the performance indicators of the compound feed processing unit shall comply with the provisions of Table 1. Table 1
Productivity kg/h
Electricity consumption per ton of material kWh/t
Mixing uniformity
Dust concentration mg/m2
Noise in the operating area, average sound pressure level
Reliability%
Working time before first failure h
Approved by the Ministry of Machinery Industry on July 18, 1994
300, 500, 1000,
(1500)
300, 500, 1000,
(1500), 2500
Implemented on July 1, 1995
4 Technical requirements
JB/T 73141994
4.1 The compound feed processing unit shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 The structure of the compound feed processing unit shall ensure that the crushing particle size is adjustable and the working parts are replaceable. 4.3 The quality indicators of the processed compound feed products shall comply with the relevant standards such as GB5915 and GB5916. 4.4 For the unindicated tolerance dimensions of the parts on the drawings, the processed parts shall be manufactured according to the f grade (precision grade) specified in GB/T1804; the non-processed parts shall be manufactured according to the c grade (rough grade)
4.5 The materials of all parts shall comply with national standards or industry standards. 4.6 The surface of the casting shall be flat and smooth, and no cracks and defects such as pores, slag inclusions, and lack of meat that affect the strength are allowed. 4.74
Forgings shall not have flash, burrs, oxide scales, and obvious hammer marks, and defects such as overheating, decarburization, interlayers, and cracks are not allowed. 4.8 Sheet metal parts and cold stamping parts are not allowed to have cracks, wrinkles, flash and obvious hammer marks. 4.9 The machined surface of the machined parts is not allowed to have scars and other mechanical damage. 4.10
Heat-treated parts are not allowed to have defects such as overburning, cracks, decarburization, scarring, etc. Welded parts are not allowed to have defects such as leaking, burning through, incomplete welding, cracks, etc. Welding slag should be cleaned and the weld surface should be flat. The painting of the unit should meet the requirements of NJ/Z3.
Each unit and combined supporting parts of the unit must be inspected and qualified by the quality inspection department of the general assembly plant before they can be assembled. All rotating parts and operating parts should be flexible and free of jamming. The bearing room should be clean and add appropriate amount of lubricating grease according to the unit's "Instruction Manual". The crusher, mixer and conveying device should be sealed reliably without powder leakage, material leakage or air leakage. The wiring arrangement in the electrical control cabinet should be neat and clear, the electrical components must be safe and reliable, the metal shell should have a grounding device, and the grinder should have reliable magnetic and other protective devices. All exposed transmission parts and moving parts that may cause harm to the operator should have safety protection devices. The quality of the grinder hammer should meet the requirements of ZBB93019. The grinder screen should meet the requirements of GB3943. Inspection rules
5.1 Before leaving the factory, the product should be tested for 30 minutes of single machine idling, and meet the following requirements: normal and stable operation, flexible and reliable operating device, and no abnormal sound; a.
b. There is no loosening of the connecting parts and fasteners; c. There is no leakage at the sealing parts;
d. The temperature of each bearing shall not be higher than 55℃, and the temperature rise shall not exceed 25℃. 5.2 For batch-produced products, at least 2 units out of every 300 units shall be selected for performance testing according to JB/T7315. And meet the product design requirements. 5.3 The whole machine must be inspected and qualified by the inspection department of the manufacturer and accompanied by a product inspection certificate before it can leave the factory. 5.4 The ordering unit has the right to conduct random inspections on the products in accordance with the provisions of this standard. When the ordering unit conducts random inspections on the product quality, the sampling plan shall be determined by negotiation between the supply and demand parties in accordance with the provisions of GB2828. 6 Marking, packaging, storage
6.1 Each unit shall be fixed with a product label in accordance with the provisions of GB/T13306 in a conspicuous place on the vertical (horizontal) drum of the mixer. The main contents are as follows: a. Manufacturer name;
b. Product model and name;
c. Main technical specifications;
d. Factory number;
e. Factory date.
JB/T73141994
The operation, control, feeding and output, safety protection and other parts of the unit shall have work instructions and safety warning signs. 6.2
The factory packaging method of the feed processing unit shall be agreed upon by the ordering unit and the manufacturer. According to the transportation conditions, the appropriate packaging method shall be selected under the condition that the equipment is not damaged.
The accessories, spare parts and special tools supplied with the unit shall be complete. The following documents shall be provided with the unit:
Packing list;
b. Product certificate;
Instruction manual;
d. User opinion survey form
The compound feed processing unit shall be properly stored to prevent deformation, falling debris and rust. If stored in the open air, waterproof facilities shall be provided. 6.6
Additional instructions:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences. The main drafter of this standard is Liu Chengjun.
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Compound Feed Processing Units
JB/T 73141994
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Print Sheet 1/2
Word Count 6.000
First Edition in April 1995
First Printing in April 1995
Print Quantity 1-500
Price 4.00 Yuan
94-079
Mechanical Industry Standard Service Network: http://www.JB.ac.cn66_
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