What are the requirements for the ground when building a solar greenhouse pig house?

A qualified pig farm needs to meet the following conditions: simple and cost-effective (that is, money-saving), strong and durable; Facilitate production management; Easy to control the environment; facilitate epidemic prevention and control; It is convenient for drainage and sewage, and is convenient for moisture-proof heat preservation and fire prevention.

Places need to be kept dry. If the floor of the pig house is too wet, it will cause arthritis in pigs, increase the moisture of pigs, lead to moisture invasion, and cause diseases in pigs. If the house is not cleaned regularly, excrement and overfeeding in the tank will produce bacteria and ammonia, which can easily lead to disease or ammonia poisoning.

The ground must be clean and level, but not too hot, because too hot will not be good for the pig will be sick, be sure to choose a cool and ventilated place, the pig can also be comfortable.

It is required that the ground should be flat and convenient for pigs to move in the pig house; The ground is required to be insulated, so that the temperature energy of the solar greenhouse can reduce waste; The ground is required to be solid and non-slippery, which is convenient for the cleaning of the pig house; The ground is required to be dry, so that the pigs have a good living environment in the pig house.

The floor of the pig house is a place where pigs move, eat, lie down and urine. The ground has a great impact on the thermal insulation performance of the pig house and the production performance of the pigs. The floor of the pig house is required to be insulated, solid, impermeable, smooth and non-slippery, which is easy to clean and disinfect.

The ground should generally maintain a slope of 2% to 3% to help keep the ground dry.

The soil floor, the triple soil surface and the brick floor have good thermal insulation performance, but they are not strong, easy to seepage, and are inconvenient for cleaning and disinfection. The cement floor is durable, flat, and easy to clean and disinfect, but it has poor thermal insulation performance. At present, the pig house mostly uses cement floor and cement leakage floor.

In order to overcome the shortcomings of fast heat transfer of cement floor, materials with large pores (such as furnace ash slag, expanded perlite, hollow bricks, etc.) can be used in the lower layer of the ground to enhance the thermal insulation performance of the ground.

The floor of the pig house is not only the bed where the pig lies, but also the activity place of the pig, which plays an important role in the hygiene, warmth and productivity of the pig house. Therefore, the floor is required to be not only flat and firm, easy to disinfect, clean and keep warm, but also low in cost. In order to prevent heat dissipation, an air layer can be built with materials such as furnace ash slag, expanded perlite, and air bricks with large pores in the lower layer of the surface; In order to prevent moisture, a moisture-proof layer can be laid with moisture-proof materials such as linoleum under the air layer; To facilitate drainage, the floor of the barn should have a slope of 3% to 4%.

Solar greenhouse structure: The abbreviation of energy-saving solar greenhouse, also known as greenhouse, is composed of two side gables, maintenance walls, supporting skeletons and covering materials. It is a type of greenhouse unique to the northern region of China.

It is a kind of greenhouse that is not heated indoors, and realizes heat storage and release through the absorption of solar energy by the back wall, and maintains a certain indoor temperature level to meet the needs of vegetable crop growth.

<> solar greenhouse area: solar greenhouse is the abbreviation of energy-saving solar greenhouse, also known as greenhouse, which is a unique type of greenhouse in northern China. It is a kind of greenhouse that is not heated indoors, and even in the cold season, it only relies on sunlight to maintain a certain temperature level indoors to meet the needs of vegetable crop growth.

Performance: The light transmittance of energy-saving solar greenhouses is generally more than 60% and 80%, and the temperature difference between indoor and outdoor can be maintained above 21 25 degrees Celsius. Daylighting, on the one hand, solar radiation is an important energy to maintain the temperature of a solar greenhouse or to maintain heat balance**; On the other hand, solar radiation is the light source for crops to photosynthesize.

<> Solar greenhouse civil engineering: the cost of civil foundation is different, and the difference is large, mainly related to the type of foundation construction. Foundations are divided into earthen wall foundations and brick wall foundations.

Among them, the cost of the earth wall foundation is low, and the main construction content is the construction of the earth wall. If required, the ring beam on the top of the front and rear walls should also be added. As a wall, the earth wall has good thermal insulation performance, which is better than the brick wall foundation, and the construction cost is relatively low.

However, the disadvantage of the earthen wall as the foundation is that the land utilization rate is too low, and the land can generally be used to 60 70. In addition, the rainproof performance of the earthen wall is poor, if the drainage problem is not solved well, after long-term rainwater erosion, it is easy to cause the wall to collapse and bring losses to greenhouse planting.

With the development of the greenhouse industry, there is now a new construction mode for solar greenhouses. When many solar greenhouses are designed and built, the back wall is removed and covered with 75mm or 100mm thick color steel plates, so that the back wall does not need to be piled with soil or bricks, which does save costs. However, this kind of back wall structure is suitable for central China or close to the southern region, and it is not recommended to use it in the northern region, because this back wall structure is too thin, and it is easy to cause frost damage to crops in extreme weather in winter.

Moreover, the position of the back wall of this (Goshen greenhouse Song Haidi release) structure must be well designed with the skeleton, including the angle, etc., otherwise a heavy snow will fall, and the greenhouse will collapse and the loss will be huge.

When civil construction, leave more windows, sunlight can shine through the windows in the pig house, but also to ensure the ventilation of the pig house.

The soil should be firm, no gaps should be left, lighting and ventilation should be suitable, the temperature should be just right, and the area should be as large as possible.

There can be no problems such as damp ground, poor sanitary conditions, insufficient area, insufficient light, etc., and the slate floor can be built, which is conducive to daily disinfection and cleaning.

The barn is one of the three important components of the "model". When constructing a pig farm car, the unit matching between the pig farm, the biogas digester and the solar greenhouse should be considered to achieve the efficient use of logistics and energy flow of closed cherry blossoms. At the same time, it is also necessary to consider measures such as warming and thermal insulation in winter and cooling in summer, so as to be suitable for the growth and development of pigs throughout the year.

The pig barn is one of the three important components of the "model". When building a pig house, it is necessary to consider the unit matching between the pig pants dust house, the biogas digester and the solar greenhouse, so as to achieve the effective utilization of logistics and energy flow in the pure rush period. At the same time, it is also necessary to consider the measures such as warming, heat preservation and summer cooling of the pig house in winter, so that the local Zen can be suitable for the growth and development of pigs all year round.

plastic film too. In the whole greenhouse industry, there are still many types of plastic films, and there are many opportunities to choose, the most important of which is the light transmittance The main materials for greenhouse covering materials can be PE film, EV film and PO film, these different films have different light transmittance, and the light transmittance of PO film is the best.

The architecture of the solar greenhouse is basically similar to the residential buildings in the north in terms of lighting. In order to better light the effect, their orientation is basically in the form of sitting north and facing south, and the residential buildings are often due north to south. However, the actual design and construction of solar greenhouses does not follow due south and north, but has a certain angular deviation, which is a human factor.

The main thing is to choose film There are still many types of plastic films in the entire greenhouse industry, and there are many opportunities to choose. The most important point is that the light transmittance of different films is also different. Regardless of the ** factor, it is basically a PO film.

(1) Use high-performance thermal insulation materials to build pig houses.

2) The implementation of artificial heating in the pig house, flue, fire wall, stove, hot blast stove, heating, etc. To prevent fire and carbon monoxide poisoning.

3) For local heating of piglets, bedding, ondol, electric heating plate, infrared lamp, etc., can be used, and with incubators.

4) Increase feed concentration, increase feed intake, feed more green and juicy feed, and supply sufficient warm water.

What should be considered in the construction of pig farms? We believe that the impact of site selection on pig farm production is crucial, and the following aspects should be considered from the perspective of environmental requirements of pig farms:

Long-term planning. Today's rapid development of society, urban and rural construction with each passing day, pig industry is a long-term industry, so the construction of pig farms should conform to the development of the city, if it can become a part of the urban vegetable basket process, the pig farm will be built in the urban planning of the livestock production base, you can miss to avoid the embarrassment of demolition.

In order to isolate dust, odor and noise, the pig farm should be located downwind of residential areas, with a distance of more than 3oo 5oom and no less than 1oo 2oom from the main traffic artery, and the selected location has enough room for expansion.

Orientation of the barn.

The pig house should sit in the north and face south, according to the terrain and latitude, there can also be a certain deviation, in order to facilitate the heating of the sun in winter and the cool wind in summer.

Water, electricity, transportation and other factors.

A 1ooo mechanized pig farm with a daily water consumption of 16t, a clean and stable water source must be considered first.

The installed capacity of the pig farm is large, generally 3okw, and can not be blacked out, once the power is out, the pigs are thirsty and can not drink water, can not be ventilated and cooled when they are hot, and the piglets can not be heated and kept warm when they are cold, which will seriously affect the production.

Therefore, it is best to build a pig farm in an area with a stable power supply from the power grid, and also to bring your own small generator in case of accidents.

A 1ooo pig farm, about 4t of feed, manure, pigs, etc. in and out every day, the pig farm is built in a convenient location, and the lack of search can reduce transportation costs.

Epidemic prevention. In order to maintain good health and epidemic prevention conditions, the site should be selected in a place with high terrain, open terrain and good ventilation, and at the same time should be far away from residential areas and medical institutions, slaughterhouses and other places, and it is best to only set up an entry and exit channel.

Manure disposal. The amount of manure in the 1ooo pig farm is very large, and if it is not effectively treated at the time of ambush, it will pollute the surrounding environment and cause ecological imbalance.

Therefore, the site should be selected to be far away from drinking water sources and to allow space for sewage treatment.

Manure treatment, combined with fish pond farming, fruit and vegetable planting and other crop production, turns waste into treasure.

The manure can also be dried and used as fertilizer**.