As the breeding scale of pig farms in China is getting bigger and bigger, the closed management in the feeding process, the high labor intensity and the poor working environment in the pig house make it difficult for many breeders to work at the pig farm for a long time. Unstable, with the continuous improvement of the society and the increase of employment opportunities, the breeders have higher requirements for their working environment. Therefore, the current problem is that it is difficult to recruit and work hard. Practical experience tells us that greatly improving the degree of mechanized operation is an effective way and a practical way to solve the difficulties in the employment of pig farms. In particular, the labor-saving effect of using high-efficiency automatic feeding and feeding systems is most significant. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

1. The economic benefit analysis of the automatic feeding system is as follows: 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

Take the example of raising 200 sows. In general, in the case of artificial feeding, each feeding of 200 sows on the farm requires a minimum of 2 breeding personnel. Its main tasks include loading and unloading feed, feeding pigs, checking the situation, clearing the manure, disinfecting, ventilating and ventilating, and assisting breeding. Among them, the largest amount of labor is loading and unloading feed and feeding pigs, accounting for more than half of the labor. The role of the high-efficiency automatic feeding system is as follows: 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

1.1 Saving labor costs on pig farms 2Jv China Feed Industry Information Network - Based on feed, serving livestock

Two people need to raise 200 sows. After installing the automatic feeding equipment, the automatic feeding system is replaced by the work that accounts for more than half of the total labor. Then one person can work very well for one person, which can save one breeder. It takes about 40,000 yuan to hire a breeder a year. Under normal circumstances, for every 10 breeders on the farm, one manager (including logisticians) can be reduced, saving labor costs by 4,000 yuan. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

1.2 Feed Waste Reduction 2Jv China Feed Industry Information Network - Based on Feed, Serving Livestock

Manual feeding of pigs often lacks accurate measuring instruments. When feeding pigs, iron shovel is generally used. The feeding amount is random and inaccurate, and accurate feeding cannot be achieved. It is only satisfied with the total number of pigs in different stages. Control, and there are sprinkles, leaks, breaks, etc. in the process of loading, unloading, handling and feeding, which causes serious waste of feed. According to the daily feeding of a sow with a minimum of 0.01 kg of feed, then 200 litters per day are wasted 2 kg, and 730 kg is wasted every year, at 1.5 yuan per kg, which is 1095 yuan. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

1.3 Other cost savings 2Jv China feed industry information network - based on feed, service animal husbandry

Compared with manual feeding, other cost savings are also significant: saving the cost of feed woven bags by 40 yuan / ton; reducing the labor cost of manual loading, moving and dismantling: 10 yuan / ton; reducing the feed loss of rats by 5 yuan / ton. The annual feed for 200 sows is 200 tons, and the other cost savings is 2000屯x 55 yuan/ton=11,000 yuan. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

The total amount of money saved for 200 sows per year is 40,000 yuan, 104,000 yuan, +1095 yuan, +11,000 yuan = 56,095 yuan. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

1.4 Economic Benefit Analysis 2Jv China Feed Industry Information Network - Based on Feed, Serving Livestock

The equipment of the automatic feeding system is used according to the specified operation method under normal working environment such as stable power supply, and the maintenance cost is low. The service life of the system is more than 10 years. According to the actual experience, the single-head sow one-time automatic feeding system equipment The investment is about 400 yuan / head. Then the investment in feeding 200 sow equipment needs 80,000 yuan. According to the calculation of 10 years of use, the average annual depreciation fee is 0.8 million yuan, plus electricity and maintenance costs of 0.2 million yuan, totaling 10,000 yuan. In this way, the automatic feeding system raises 200 sows and obtains a new net benefit of 4.6095 million yuan per year, and the economic benefits are very considerable. Equipment investment can be recovered within 1.5 years. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

2, the other benefits and effects of the automatic feeding system analysis 2Jv China Feed Industry Information Network - based on feed, service animal husbandry

The automatic feeding system can realize fully automatic operation, reduce the labor intensity of the breeder, improve the production efficiency of the farm, and has the characteristics of stable performance, reliable use and low failure rate. The pig farm automatic feeding system not only saves labor costs, but also 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

It has the advantages that ordinary manpower can't compare with pigs. The other benefits and effects of automatic feed feed system application are roughly reflected in the following aspects: 2Jv China Feed Industry Information Network - Based on feed, serving animal husbandry

(1) Promoted the health of the herd, reduced the stress and the incidence of the disease in the pigs, and the sows were quiet during the whole feeding process, reducing stress, miscarriage and equipment damage. During the feeding process, the sows’ hunger is reduced, the sows are vying for relief, and the staff is relieved. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

(2) Promote the strengthening of the epidemic prevention system. The whole feeding process is non-polluting and the fresh feed is not affected by the environment of the pig house: stable staff, reduce the flow and replacement of the breeding staff; closed-type cutting design, effectively reducing the feeding and polluting feed of mouse flies. Automatic feeding completely avoids the risk of cross-contamination of pigs after the feed bag enters the pig house. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

(3) Nursery pigs and nursery pigs can be used for more than 10 days in advance by automatic feeding, which reduces the cost of feeding, reduces the workload of the breeding staff, reduces the stocking density, and reduces the occurrence of disease and casualties. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

3, the use of automatic feeding system 2Jv China feed industry information network - based on feed, service animal husbandry

2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

The automatic conveying and feeding system mainly consists of a feed tower, a driving unit, a conveying pipe, a dosing cup and a wet and dry feeder, a controller, a sensor and a supporting member. Feeding the feed tightly through the feed line to the child feeder or trough, you can feed each sow and group management pregnant sows separately, can achieve automatic unloading at the same time, synchronous feeding, and significant savings Labor costs, greatly reducing labor intensity, and greatly facilitate pig farm management. In the case of proper management, one breeder can raise 200 sows, or 300 to 500 pregnant sows, or 1,000 to 2,000 fattening pigs. Through the actual cooperation experience of our company and a number of pig farms, it shows that the automatic feeding system can save at least 50% of the salary, and the annual output of the Wantou pig farm can increase by more than 250,000 yuan. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

In summary, the use of the automatic feeding system can effectively solve the problem of difficult employment and labor, and can greatly save the cost and increase the efficiency of the farm. It has the dual effect of improving the efficiency and efficiency of feeding at the same time, so the domestic large-scale pig farm investment is introduced. The automatic feeding system is very necessary, and it is worthy of attention and active promotion practice. 2Jv China Feed Industry Information Network - based on feed, serving animal husbandry

In Petro and chemical industry for flange connections Stud Bolts and Hex Bolts are used. 

The quantity of bolts for a flange connection will be given by the number of bolt holes in a flange, diameter and length of bolts is dependent of flange type and Pressure Class of flange.

Stud Bolt length are defined in Asme B16.5 standard. The length in inches is equal to the effective thread length measured parallel to the axis, from the first to the first thread without the chamfers (points). First thread is defined as the intersection of the major diameter of the thread with the base of the point.

Grades of Stud Bolts

Below a table with materials and grades for flanges, thread rods (bolts) and nuts, arranged on design temperature, flanges, thread rods and recommended nuts.

Bolts & Nuts

Stud Bolts, Heavy Nuts, Stud Bolts With 2 Nuts, Hex Bolts, 2H HDG Nuts, Galvanized Bolts and Nuts

Shijiazhuang Bang dong Pipeline Technology Co,Ltd. , http://www.bd-pipefitting.com