How to ventilate the blister dung pig house

Blister dung is a way of piggery manure treatment, in this process, fecal fermentation will produce a large number of harmful gases, so it is very necessary to do a good job of ventilation. How is the blister dung pig house ventilated?

First, how to ventilate the blister dung pig house

When adopting the technology of soaking dung, a certain standard trench fan must be installed in the construction of the fence house, coupled with water curtain cooling and negative pressure ventilation measures, in order to effectively solve the air problem in the pig house.

Trench ventilation is a kind of negative pressure ventilation, through the side window or ceiling air inlet Jinfeng, exhaust air from the trench exhaust pipe. The main ventilation modes of trench ventilation include pipe ventilation and interval ventilation.

1. Pipe ventilation: an air inlet is installed above the septic storage tank and under the leaky floor, and the harmful gas is discharged by a negative pressure fan through a pipe with the same length as the septic storage tank. The air inlet should not be large, and the height of the gap between the bottom of the leaky floor and the faecal surface is not less than 0.5m, which is used for the air flow in the septic tank to promote the discharge of toxic gases.

2. Interval ventilation: the outer wall of the septic storage tank is spaced at a certain distance, and there are pores in communication with the septic storage tank. An exhaust fan is installed above the interval, and harmful gases are discharged through the exhaust fan. A large number of trench fans are used.

2. Introduction of blistered dung in pig house

In the blister manure mode, a very deep pit is built under the pigsty, with a leaky floor above and water in the pit; in this way, the fecal urine leaks into the water below, because of the depth of the water, the smell of fecal urine is diluted, coupled with the exhaust system, so the smell of the pig house is often smaller than that of the ordinary pig house, and the harm to the pig is less.

Note: we must consider the long-term treatment of sewage, do not have short-term behavior, because the state pays more and more attention to environmental protection, the practice of discharge into rivers and ditches will not last long.

Then we should pay attention to the design of the sewage pipe, especially the large pig farm, the slope of the pipe is very small; if coupled with the uneven pipe, there will be a large amount of accumulation over a long time, so it is very difficult to clean up.

Secondly, we should pay attention to the problem of sundries falling into the sewage sink. it is easy to block the pipe and it is more difficult to clean it up.

In addition, we should also pay attention to the leak seam floor to be strong, there are often pigs in the pig farm crush the leak seam floor and drop the pig into the sewage pool, although the pig cannot be drowned, it takes a lot of manpower to fish it up every time, which is very troublesome.

Finally, we must do a good exhaust system design, air intake and exhaust should be in accordance with the requirements, but also equipped with sufficient horsepower fan, otherwise the harmful gas can not be discharged, the harm to the pig is very great.

Reasonable and orderly arrangement of pig house construction work, the use of blister dung mode at the same time, strengthen ventilation, in order to ensure the healthy and orderly operation of the whole pig house.