CN201067059Y - Device for storing grain with carbon dioxide - Google Patents

Abstract

The utility model discloses a carbon dioxide grain storage device to solve the defects existing in existing grain depots or granaries. This carbon dioxide grain storage device is composed of a top cover, an outer wall of the grain depot, an injection port, a gate and a pipeline network, etc., wherein the injection port is set on the top of the outer wall of the grain depot, the top cover is above the injection port, and the There is a seal between the lower end of the cover and the outer wall of the grain depot. The pipeline network is installed on the bottom plane of the grain depot and connected to the _CO2 gas storage tank through a flow meter. The gate is set on the outer wall of the grain depot. This carbon dioxide grain storage device uses the difference in specific gravity between air and CO ₂ gas to discharge the air from the grain storage device, so that the grain is in a dormant state in the CO ₂ gas, so as to achieve freshness, quality preservation, mildew resistance, and pest control. To achieve the purpose of improving the quality of grain storage, reducing grain loss, and reducing the cost of grain storage.

Description

Carbon dioxide grain storage device

1. Technical field

The utility model belongs to a device for keeping and storing grain, in particular to a device for storing grain by using carbon dioxide (that is, CO2).

2. Background technology

The storage and storage of grain, the most commonly used and most primitive storage method is to dry the grain and store it in barrels, tanks, granaries, especially granaries or grain depots (that is, grain storage devices), its structure is actually a room In warehouses, grain usually enters and exits through one door. Considering ventilation, there are ventilation windows on the walls of the warehouse, ventilation ducts between grain stacks, and measures to prevent insects, rats, and fire, which cost a lot of money. This kind of grain storage device seems simple and easy to implement, and it is also a commonly used method in folk and national granaries. However, there are many problems: firstly, the stored grain must be dried in the sun, and damp food cannot be used. Once wet food is mixed in, the temperature of the grain will rise and accompanied by the generation of water vapor, causing the so-called "dampness" of the grain, and the moisture will make the grain dry again. Grain and mold life activities are intensified, resulting in mildew and yellowing of grain, and huge losses. Therefore, the temperature of grain must be checked frequently in the granary. Pesticides and rodenticides are used to cause pollution; third, grains that have not been dried in the sun cannot be stored. However, China has a vast territory, and wheat and rapeseed in the Jiangnan area often encounter plum rains when harvesting, and autumn rains often occur when rice is harvested. The grains in the country turned yellow and mildewed because they could not be dried in time and put into storage, resulting in huge losses. Although there are cold storage methods to store seeds at present, the low temperature can make the seeds in a deep dormant state without deterioration, but this method is also good for preserving endangered species, but for the storage of large amounts of grain, its cost is unaffordable. There is also a so-called ice-temperature grain depot, which can keep grain fresh, but its cost is very high and cannot be used for commercial storage. For this reason, existing grain storage devices (i.e. grain depots, granaries, etc.) must be improved and designed, and new methods of preserving grain have been the research content of the grain management department.

3. Contents of utility model

The purpose of this utility model is to provide a kind of novel grain storage device, to overcome many defectives that traditional grain storage device exists. This new type of grain storage device - carbon dioxide grain storage device (abbreviated as CO2 granary or CO2 grain depot) can be implemented with the following technical solutions: it is composed of a top cover, an outer wall of the grain depot, an injection port, a gate and a pipeline network. , wherein the injection port is set on the top of the outer wall of the grain depot, the top cover is covered above the injection port and connected with the upper end of the outer wall of the grain depot through the top cover fixing piece, and between the lower end of the top cover and the outer wall of the grain depot There are seals between them, the pipeline network is installed on the bottom plane inside the outer wall of the grain depot and connected to the CO2 gas storage tank through the flowmeter, the gate is set on the outer wall of the grain depot, generally located in the grain depot near the upper part of the pipeline network On the outer wall, CO2 vent holes are arranged on the pipes of the pipeline network.

Compared with existing granaries or grain depots for grain storage, the carbon dioxide grain storage device composed of the above structure has the following advantages: 1. Good sealing performance, and the grain in the grain storage device is not easy to be affected by moisture; 2. The grain storage device is stored by CO2 There is a certain concentration of CO2 stored in the air outlet of the gas tank and the pipeline network, so that the grain in the device is in a dormant state and will not go moldy, so it does not need to be turned over frequently, and the original nutritional content of the grain can be maintained; 3. Grain storage device Under the condition of a certain concentration of CO2 gas, it can prevent insects, rodents and fire; 4. Due to the storage of grain under the condition of CO2 gas, the volume utilization rate of the grain depot can also be improved, and the cost of grain storage can be greatly reduced.

4. Description of drawings

Fig. 1. Structural schematic diagram of carbon dioxide grain storage device;

Figure 2. Schematic diagram of the pipeline network structure.

5. Specific implementation

Below in conjunction with the accompanying drawings, the carbon dioxide grain storage device will be further described.

As shown in Figure 1 and Figure 2, the carbon dioxide grain storage device is composed of a top cover 3, an outer wall of the grain depot 7, an injection port 4, a gate 9 and a pipeline network 8, wherein the injection port 4 is located on the top of the outer wall of the grain depot , the top cover 3 covers the top of the injection port 4 and is connected and fixed with the upper end of the outer wall surface of the grain depot through the top cover fixing part 5, and a seal 6 is arranged between the lower end of the top cover 3 and the outer wall surface of the grain depot, and the pipeline network 8 is installed on the bottom plane in the outer wall of the grain depot and is connected with the CO2 gas storage tank 1 through the flowmeter 2, the gate 9 is arranged on the outer wall of the grain depot, and the pipes of the pipeline network are provided with CO2 air outlets.

When the carbon dioxide grain storage device built according to the above-mentioned structure works, the top cover 3 is first opened, and the grain is injected into the grain storage device from the injection port 4. After the grain is loaded, the top cover 3 is covered, and the top cover fixing part 5 is connected to the outer wall of the grain depot. Open the CO2 storage tank 1, transmit gas to the pipeline network through the flow meter 2, and inject CO2 into the grain depot through the air outlet hole on the pipe on the pipeline network, and the gas supply volume is measured and controlled by the flow meter. The original air in the warehouse is discharged out of the warehouse through the injection port. When the CO2 concentration reaches a certain value, the CO2 gas storage tank is closed to store grain and keep fresh. When the grain is delivered, the gate is opened, and the grain is taken out from the gate. Because the specific gravity of air is lighter than CO2, the air in the warehouse is thin, and the grain will not deteriorate in a deep dormant state, and insect pests and mice cannot be generated. CO2 can also extinguish the fire, thereby achieving the purpose of improving the quality of stored grain and reducing the cost of stored grain.

Claims (2)

1. A carbon dioxide grain storage device consisting of a top cover (3), an outer wall of a grain depot (7), an injection port (4), a gate (9) and a pipeline network (8), characterized in that the injection port (4) Set on the top of the outer wall of the grain depot, the top cover (3) covers the top of the injection port (4) and is connected and fixed with the top of the outer wall of the grain depot through the top cover fixing piece (5). A seal (6) is provided between the lower end and the outer wall of the grain depot, and the pipeline network (8) is installed on the bottom plane inside the outer wall of the grain depot and connected to the CO2 gas storage tank (1) through the flow meter (2). Gate (9) is located on the grain depot outer wall. 2. The carbon dioxide grain storage device according to claim 1, characterized in that the pipes of the pipeline network are provided with CO2 vent holes.

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