CN2578731Y - Moisture eliminating and oxygen reducing apparatus for grain silo - Google Patents

Abstract

The utility model discloses a moisture eliminating and oxygen reducing machine for a grain silo, which comprises an exhaust fan connected with an air outlet of the grain silo, and a combustion furnace connected with the exhaust fan, wherein the combustion furnace is connected with a cyclone dust collector connected with a radiator which is connected with a water drip cooler; the combustion furnace takes coke and charcoal as fuel. The utility model is used for changing the living environment of pests by means of rapidly consuming oxygen in the air of the grain silo to achieve the purpose of controlling pests. The utility model has no pollution to grain, and simultaneously, the aging speed of the grain in the grain silo is slowed down, and the moistness is eliminated. The utility model has the advantages of simple structure and low operation cost. Only 300KG coke or charcoal needs burning for a grain silo with 5000-ton grain capacity each time, and then, the oxygen in the grain silo can be reduced to a circumstance that pests can not grow.

Description

Dehumidifying and oxygen-reducing machine for granary

The technical field is as follows: the utility model relates to an auxiliary assembly is stored to the grain, especially relates to an utilize combustion system to reduce the granary dehumidification oxygen reduction machine of the air oxygen content in the granary.

(II) background technology: the insects are easy to grow in the grain storage process, the insects can be prevented and controlled by adopting a frequent airing method for a small amount of stored grains, and the method is not feasible for a large-capacity granary. For many years, most of the granaries use a large amount of highly toxic pesticides such as phosphide for fumigation or protective pesticides are mixed into grains, the method for preventing and controlling the grain pests by using the pesticide for a long time causes environmental pollution and pesticide residues in the grains, so that the stored grain pests gradually generate pesticide resistance, the pesticide consumption is more and more, the grain pollution is serious, and a plurality of diseases are easily caused after people eat the grains with the pesticide residues. In order to reduce the use of toxic and harmful drugs, technologists have used the following measures to prevent food pests: 1. one is to seal the newly-entered high-temperature grain, utilize the grain to breathe and reduce oxygen by oneself, dry the grain temperature to above 48 duC first before the grain is entered, put the granary into full to seal and preserve in short time, this kind of method is suitable for the centralized grain of putting into of the small granary, for the large-scale granary, because of putting into the storehouse time long and can't utilize; 2. the method is only suitable for the granary near an alcohol factory and cannot be popularized in a large area; 3. the molecular sieve is used for separating air, nitrogen is filled into the grain pile, and the oxygen content is reduced, so that the method has complicated equipment and high cost; 4. the method for reducing oxygen by using oil burning of an oil burning furnace can generate intermediate products with incomplete combustion to pollute grains when oil is burnt, and generate a large amount of water vapor to be dried by configuring drying equipment; at present, more than 99 percent of the stored grain insects are still controlled by adopting an insecticide insecticidal method.

(III) the invention content: for solving the problem that large capacity granary is very easy to produce the pest in the grain storage process, reduce the quantity of insecticide, the utility model provides a simple structure, implement easy, running cost low, effectual granary dehumidification oxygen-reducing machine.

The technical scheme of the utility model is realized with following mode: a dehumidifying and oxygen-reducing machine for granary is composed of an exhaust blower connected to the air outlet of granary, a combustion furnace connected to said exhaust blower, a cyclone dust collector connected to combustion furnace, a radiator connected to cyclone dust collector, and a spray cooler connected to radiator.

The combustion furnace body is a cylindrical cavity with a lining of refractory bricks and a steel shell outside, the upper part of the combustion furnace body is provided with a sealable feed inlet, the middle upper part of the combustion furnace body is provided with an air outlet connected with a cyclone dust collector, the lower part of the combustion furnace body is provided with a sealable slag outlet, the bottom of the combustion furnace body is provided with a grate, an ignition electric furnace wire and an air inlet connected with an exhaust fan.

The upper part of the spray cooler is provided with a cooling spray header, and the lower part of the spray cooler is immersedin cold water.

The utility model has the advantages that: 1. the sealed air circulation system formed by connecting the coke burning equipment and the granary is utilized, oxygen is rapidly consumed for air in the granary through coke burning, the environment in which pests live is changed, a large amount of carbon dioxide and a small amount of carbon monoxide gas can be generated in the coke burning process, and the two gases can inhibit the generation and growth of the pests, so that the pest control effect is good, and no pollution is caused to grains; 2. the air in the granary is deoxidized, cooled and then sent into the granary, so that the effect of inhibiting the generation of pests is achieved, meanwhile, the temperature in the granary is reduced due to the feeding of the cooling air, the grain aging speed is slowed down, and the grain storage time is prolonged; 3. because the moisture in the air reacts with carbon at high temperature to generate carbon monoxide, the moisture is removed simultaneously in the process of oxygen removal; 4. the device has simple structure and low operation cost, is easy to popularize and apply, and can reduce the oxygen in the granary to a place where pests cannot grow only by burning 300kg of coke or charcoal each time by calculating by the inventor, wherein 1000 ten thousand jin of granary is used.

(IV) description of the drawings:

fig. 1 is a schematic view of the structural principle of the present invention.

(V) specific embodiment: the present invention will be further explained with reference to the accompanying drawings:

as can be seen from fig. 1, the utility model comprises an exhaust fan 1 connected with the airoutlet of the granary, a combustion furnace 2 connected with the exhaust fan, a cyclone dust collector 5 connected with the combustion furnace 2, a radiator 6 connected with the cyclone dust collector 5, and a spray cooler 7 connected with the radiator, wherein the combustion furnace 2 is a combustion furnace using coke and wood carbon as fuel; the combustion furnace body is a cylindrical cavity with a lining of refractory bricks and a steel shell outside, the upper part of the combustion furnace body is provided with a sealable feed inlet 3, the middle upper part of the combustion furnace body is provided with an air outlet 4 connected with a cyclone dust collector, and the bottom of the combustion furnace body is provided with a sealable slag outlet 10, a grate, an ignition electric furnace wire 8 and an air inlet 9 connected with an exhaust fan; the upper part of the spray cooler 7 is provided with a cooling spray head 11, the lower part of the spray cooler is immersed in a cold water well, and when the spray cooler works, a feed inlet at the upper part of the combustion furnace, a slag outlet at the lower part of the combustion furnace and a dust outlet of the cyclone dust collector are sealed.

When the equipment is installed and used, the grain surface in the granary is sealed by a plastic film according to the conventional method, the air inlet of an exhaust fan of the oxygen reducing machine is connected with the air outlet at the upper part of the circulating fumigation of the granary, the air outlet of a spray cooler is connected with the air inlet of a ventilating ground groove of the granary, then coke is filled from the feed inlet of a combustion furnace until the granary is full, the feed inlet is sealed, an ignition electric furnace wire of the combustion furnace is connected with a power supply, the heating power supply is cut off after heating for 10 minutes, a spray water pump is started, the power supply of the exhaust fan is connected, the exhaust fan extractsthe air in the granary and sends the air into the combustion furnace, oxygen in the air reacts with the coke to generate carbon dioxide and a small amount of gasified carbon, a small amount: the gas which is deoxidized and contains a large amount of carbon dioxide and a small amount of carbon monoxide enters an air cooler for preliminary cooling after being dedusted by a cyclone dust collector, and then enters a spray cooler 7 for cooling, the cooled gas is a low-temperature mixed gas of dry, low oxygen, high carbon dioxide and a small amount of carbon monoxide, and after 4-6 hours of circulating oxygen reduction, the granary and each air inlet and outlet are sealed, so that the conditions of low oxygen and high carbon dioxide in the granary can be kept. The change of the oxygen content in the grain pile is often detected in the process of storage, and if the oxygen content rises to a certain concentration, the oxygen content can be reduced again.

During oxygen reduction, the grain surface of the granary can be sealed by a plastic film, a plastic film air bag is made on the grain surface to cover the whole grain surface, the air bag is provided with an air inlet and an air outlet, the air outlet of the air blower is connected with the air inlet of the air bag, and the air inlet of the air blower is connected with the air outlet of the spray cooler. When the temperature outside the granary is higher than the grain temperature by more than 8 ℃, calculating whether condensation occurs during cooling, if condensation occurs, after dehumidification, opening a water pump of a spray cooler, and cooling the granary or grain stack by an air blower to keep the grain temperature unchanged.

Claims (3)

1. A grain bin dehumidification and oxygen reduction machine comprises an exhaust fan (1) connected with an air outlet of a grain bin and a combustion furnace (2) connected with the exhaust fan, and is characterized in that a cyclone dust collector (5) is connected with the combustion furnace (2), a radiator (6) is connected with the cyclone dust collector (5), a spray cooler (7) is connected with the radiator, and the combustion furnace (2) is a combustion furnace using coke and charcoal as fuels.

2. The grain bin dehumidifying and oxygen-reducing machine according to claim 1, wherein the furnace body of the combustion furnace (2) is a cylindrical cavity with a lining of refractory bricks and an outer steel shell, the upper part of the combustion furnace is provided with a sealable feed inlet (3), the middle upper part of the combustion furnace is provided with an air outlet (4) connected with a cyclone dust collector, and the bottom of the combustion furnace is provided with a sealable slag outlet (10), a grate, an ignition furnace wire (8) and an air inlet (9) connected with an exhaust fan.

3. The grain bin dehumidifying and oxygen-reducing machine according to claim 1 or 2, wherein the spray cooler (7) is provided with a cooling spray header (11) at the upper part and the lower part is immersed in cold water.