CN105766188A - A trailer type biogas slurry mobile irrigation system - Google Patents

Abstract

The invention relates to a trailer-type biogas slurry mobile irrigation system, which includes a trailer, on which a biogas slurry sedimentation tank, a filter device and a first water pump are arranged; the biogas slurry sedimentation tank includes more than two sedimentation tanks, each The pools are connected by communication passages, each sedimentation tank is a first-level sedimentation tank, a biogas slurry inlet is set above the first-level sedimentation tank, and a second water pump is set in the last-level sedimentation tank; the filtering device includes biogas slurry filtration The inlet of the biogas slurry filter is connected to the outlet of the second water pump through the pipeline, and the inlet of the water filter is connected to the outlet of the first water pump through the pipeline; the outlets of the biogas slurry filter and the water filter are both connected through the pipeline The road is connected with the fertilizer liquid output pipe. The invention has mobility. Under the traction of the motor vehicle, the raw liquid of the biogas slurry can be taken from the biogas slurry pond, and then transported to the crop field, and the water can be taken from the crop field on the spot, so that the biogas slurry and water are mixed. The fertilizer liquid output pipe is output, and the fertilizer liquid output pipe can be connected with the irrigation network of the crop field, thereby realizing mobile fertilizer liquid irrigation.

Description

A trailer type biogas slurry mobile irrigation system

technical field

The invention relates to an irrigation system, in particular to a trailer type biogas slurry mobile irrigation system.

Background technique

With the progress and development of human society, the demand for energy is increasing day by day, and at the same time, the awareness of environmental protection is also increasing. In recent years, people have begun to use new energy sources and renewable energy sources. As a new type of renewable energy, biogas has been widely used in rural areas of our country.

Biogas is produced through fermentation, and the raw materials mainly include plant residues, animal manure, etc. After the biogas is produced, the corresponding waste residue and waste liquid will remain, commonly known as biogas residue and biogas slurry. Biogas slurry contains various amino acids, vitamins, proteins, gibberellins, auxins, sugars, nucleic acids, and antibiotics. Among them, gibberellin can make seeds germinate early; nucleic acid and monosaccharide can enhance the drought resistance of crops; free amino acids can enhance the frost resistance of crops; antibiotics can prevent and control crop diseases and insect pests; Promote the increase of livestock and poultry production, etc. The biogas slurry is mainly used for soaking seeds, spraying fertilizer on leaves, mixing nutrient bowls, promoting flowers and preserving fruits, drip irrigation with mother formula for soilless cultivation, raising livestock and poultry, and organic irrigation for agricultural planting, etc. Biogas residue is rich in organic matter and humic acid, which can improve the soil; it contains nitrogen, phosphorus, potassium and other elements, which can meet the needs of crop growth. In addition, the biogas residue still contains a lot of biogas slurry, and its solid content is below 20%. Part of the undecomposed raw materials and new microbial cells will continue to ferment and release fertilizer when applied to the farmland. Therefore, in the process of comprehensive utilization, biogas residue has two functions of quick effect and delayed effect. Biogas residues are mainly used as basal fertilizer for grain planting, seedling raising, and seedling production, and can also be used for the production of edible fungi and fish farming. It can be seen from the above that biogas residue biogas slurry is a good agricultural organic fertilizer. If used properly, biogas residue biogas slurry will be a pollution-free, low-cost organic fertilizer that can improve soil and prevent soil compaction.

Under the existing conditions in rural areas, biogas residue and biogas slurry have also been used in some applications. Since the biogas residue and biogas slurry has not been treated, it has a strong odor when it is applied. In addition, the biogas residue and biogas slurry is not fully separated and cannot be used for irrigation. When applying the system, the farmers just carry out simple natural mixing of water and biogas in the field. Due to the uncertain mixing ratio and uneven fertilization, the growth of crops is poor. In addition, the existing biogas slurry irrigation system is not mobile, and when the distance between the crop field and the biogas slurry tank is long, it is necessary to arrange a long irrigation pipeline, which is very expensive.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a trailer-type biogas slurry mobile irrigation system that can effectively promote crop growth and can move freely.

In order to achieve the above object, the present invention adopts the following technical solutions: a trailer-type biogas slurry mobile irrigation system, characterized in that it includes a trailer, on which a biogas slurry sedimentation tank, a filter device and a first Water pump; the biogas slurry sedimentation tank includes more than two sedimentation tanks, each of which is connected by a communication path, each of which is a first-level sedimentation tank, and above the first-level sedimentation tank is provided with a biogas A liquid inlet, a second water pump is provided in the last stage of the sedimentation tank; the filter device includes a biogas slurry filter and a water filter, and the inlet of the biogas slurry filter is connected to the second water pump through a pipeline The inlet of the water filter is connected to the outlet of the first water pump through a pipeline; the outlets of the biogas slurry filter and the water filter are connected with the fertilizer liquid output pipe through pipelines.

An inter-tank filter made of wire mesh is arranged on the upstream side of the communication path between two adjacent sedimentation tanks, and the mesh size of the inter-tank filter is from the first sedimentation tank to the last stage of sedimentation. The pool gradually decreases.

An aerator is provided on the upstream side of each of the inter-tank filters.

An aeration and deodorization device is provided at the bottom of each stage of the sedimentation tank.

Flow control valves are respectively arranged on the pipelines between the biogas slurry filter and the second water pump and on the pipelines between the water filter and the first water pump.

An air pump is provided on the trailer, a first check valve is provided on the pipeline between the biogas slurry filter and the second water pump, and a first check valve is provided on the outlet pipeline of the biogas slurry filter. An on-off valve, the top of the biogas slurry filter is provided with an air inlet connected to the air pump through an air pipe, and the bottom of the biogas slurry filter is provided with a discharge port, and the bottom of the biogas slurry filter is provided with an air inlet The discharge port is provided with a second on-off valve.

A second one-way valve is arranged on the pipeline between the water filter and the first water pump, a third on-off valve is arranged on the outlet pipeline of the water filter, and The top is provided with an air inlet connected to the air pump through an air pipe, a discharge port is provided at the bottom of the water filter, and a fourth on-off valve is provided at the discharge port of the water filter.

Both the biogas slurry filter and the water filter use laminated filters.

A coarse filter made of wire mesh is arranged at the biogas slurry injection port.

Because the present invention adopts the above technical scheme, it has the following advantages: 1. The present invention has mobility because the biogas slurry sedimentation tank, filtering device and water pump are all arranged on the trailer, and can be moved under the traction of a motor vehicle. Take biogas slurry from the biogas tank, transport it to the crop field, and take water from the crop field, mix the biogas slurry and water, and output it through the fertilizer output pipe, which can be used for irrigation of the crop field Network connection, thereby realizing mobile fertilizer liquid irrigation. 2. In the present invention, since flow control valves are respectively arranged on the pipeline between the biogas slurry filter and the second water pump and the pipeline between the water filter and the first water pump, it is possible to adjust the ratio of biogas slurry and biogas slurry in the output fertilizer liquid. The ratio of clean water makes the effect of fertilizer optimal. 3. The present invention is equipped with an aerator on the upstream side of each inter-tank filter, so the aerator can be regularly aerated to make tiny air bubbles rise from the bottom of the pool on the upstream side of the inter-tank filter, thereby washing away the attached The biogas residue impurities on the mesh surface of the inter-tank filter keep the inter-tank filter always in a clean state without being blocked by biogas residue. 4. Since the present invention is provided with an aeration and deodorization device at the bottom of each sedimentation tank, tiny air bubbles can be generated through regular aeration, and the oxygen in the aerated air can kill the anaerobic bacteria in the biogas slurry, Thereby preventing the protein fermentation in the biogas slurry, so that the biogas slurry will not produce bad smell. 5. Both the biogas slurry filter and the water filter of the present invention adopt backwashing design, so it is convenient to carry out backwashing, so as to remove impurities in the filter device.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a schematic top view of the present invention;

Fig. 3 is a schematic diagram of the working principle of the present invention.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1 , the present invention proposes a trailer-type biogas slurry mobile irrigation system, which includes a trailer 1 on which a biogas slurry sedimentation tank 2 , a filtering device 3 and a water pump 4 are arranged. The biogas slurry sedimentation tank 2 includes more than two sedimentation tanks, and the sedimentation tanks are connected by communication passages. Each sedimentation tank is a first-level sedimentation tank, and a biogas slurry injection port 5 is arranged above the first-level sedimentation tank. A water pump 6 is provided in the primary sedimentation tank. The filter device 3 includes a biogas slurry filter 7 and a water filter 8, wherein the inlet of the biogas slurry filter 7 is connected to the outlet of the water pump 6 through a pipeline; the inlet of the water filter 8 is connected to the outlet of the water pump 4 through a pipeline. The outlet of the biogas slurry filter 7 and the outlet of the water filter 8 are all connected with the fertilizer liquid output pipe 9 through pipelines.

In the above-mentioned embodiment, the upstream side of the communication passage between two adjacent sedimentation tanks is provided with an inter-tank filter 10 made of wire mesh, and the mesh size of the inter-tank filter 10 is from the first-stage sedimentation tank to the last-stage sedimentation tank. Gradually decrease, usually the mesh of the first-stage inter-pool filter 10 is 30-40 mesh, and the mesh of the second-stage inter-pool filter 10 is 60-80 mesh.

In the above-described embodiment, an aerator 11 is arranged on the upstream side of each inter-tank filter 10, and the timing aeration by the aerator 11 makes tiny air bubbles rise from the bottom of the pool on the upstream side of the inter-tank filter 10, thereby The biogas impurities attached to the mesh surface of the inter-tank filter 10 are washed away, so that the inter-tank filter 10 is always kept in a clean state without being blocked by biogas residue.

In the above-mentioned embodiment, an aeration and deodorization device 12 is arranged at the bottom of each sedimentation tank, through regular aeration to generate tiny air bubbles, the oxygen in the aeration air can kill the anaerobic bacteria in the biogas slurry, thereby Prevent the protein fermentation in the biogas slurry so that the biogas slurry will not produce bad smell.

In the above-mentioned embodiment, flow control valves 13 are respectively provided on the pipeline between the biogas slurry filter 7 and the water pump 6 and on the pipeline between the water filter 8 and the water pump 4, and the two flow control valves 13 are respectively used to adjust the The flow rate of liquid and clean water is adjusted to adjust the ratio of biogas slurry and clean water in the output fertilizer liquid.

In the above-mentioned embodiment, an air pump 14 is also provided on the trailer 1, a check valve 15 is provided on the pipeline between the biogas slurry filter 7 and the water pump 6, and a second valve 15 is provided on the outlet pipeline of the biogas slurry filter 7. An on-off valve 16, the top of the biogas slurry filter 7 is provided with an air inlet connected to the air pump 14 through the air pipe, and the bottom of the biogas slurry filter 7 is provided with a discharge port, and a second opening is provided on the discharge port. Close valve 17. The above structure constitutes the backwashing structure of the biogas slurry filter 7. When the biogas slurry filter 7 is backwashed, the first on-off valve 16 is closed and the second on-off valve 17 is opened, and the air pump 14 is used to blow the biogas fluid through the air inlet. Gas is supplied to the liquid filter 7, and in the biogas slurry filter 7, the gas is made to flow in the direction opposite to the flow direction of the biogas slurry when filtering the biogas slurry, thereby flushing the biogas slurry filter 7, and the impurities washed away together with the biogas slurry filter 7 The remaining biogas slurry is discharged from the outlet together. And when biogas slurry is normally supplied, the first on-off valve 16 is opened and the second on-off valve 17 is closed.

In the above-described embodiment, a one-way valve 18 is provided on the pipeline between the water filter 8 and the water pump 4, and a third on-off valve 19 is provided on the outlet pipeline of the water filter 8. On the top of the water filter 8 An air inlet connected to the air pump 14 through an air pipe is provided, a discharge port is provided at the bottom of the water filter 8, and a fourth on-off valve 20 is provided on the discharge port. The above structure constitutes the backwashing structure of the water filter 8. When the third on-off valve 19 is closed and the fourth on-off valve 20 is opened, the air pump 14 can be used to backwash the water filter 8, and the washed impurities are connected to the water. The retained clear water of the filter 8 is discharged from the outlet together. And when clear water is normally supplied, the third on-off valve 19 is opened, and the fourth on-off valve 20 is closed.

In the above embodiments, the biogas slurry filter 7 and the water filter 8 both adopt laminated filters, which are more convenient for backwashing than other types of filters.

In the above-mentioned embodiment, a coarse filter (not shown in the figure) made of wire mesh is provided at the biogas slurry inlet of the first-stage sedimentation tank, and the biogas slurry transported from the biogas slurry is passed through the biogas slurry inlet 5 After being filtered by the coarse filter, it is injected into the first-stage sedimentation tank, so that the larger particles in the biogas slurry are filtered out here, thereby reducing the burden on the first-stage sedimentation tank.

When the present invention is in use, first connect the trailer 1 to the motor vehicle, use the motor vehicle to transport the trailer 1 to the vicinity of the biogas slurry pool, and use an external water pump to inject the raw biogas solution in the biogas slurry pool from the biogas slurry injection port 5 Biogas slurry sedimentation tank. Then the trailer is transported to the crop field, and the inlet of the water pump 4 is connected to the external pool through the water pipe; the fertilizer liquid output pipe 9 is connected to the main road of the irrigation network of the crop field. Then turn on the water pump 4 and the water pump 6, the biogas slurry and water are filtered through the biogas slurry filter 7 and the water filter 8 respectively according to the preset flow ratio, and then mixed in the fertilizer liquid output pipe 9, and the mixed fertilizer liquid is output through the fertilizer liquid The pipe 9 enters the irrigation network of the crop field to irrigate the crops.

The present invention is only described with the above-mentioned embodiment, and the structure, setting position and connection of each component can be changed. On the basis of the technical solution of the present invention, all improvements and equivalents to individual components according to the principles of the present invention Any transformation shall not be excluded from the protection scope of the present invention.

Claims (9)

1. a pulling type biogas slurry moves irrigation system, it is characterised in that: it includes towed vehicle, is provided with biogas slurry settling tank, defecator and the first water pump on described towed vehicle；Described biogas slurry settling tank includes two or more sedimentation tank, each described sedimentation tank is connected by communication paths, each described sedimentation tank is first stage precipitation tank, is provided above biogas slurry inlet at sedimentation tank described in the first order, is in the end provided with the second water pump in sedimentation tank described in one-level；Described defecator includes marsh liquid filter and water filter, and the entrance of described marsh liquid filter connects described second water delivery side of pump by pipeline, and the entrance of described water filter connects described first water delivery side of pump by pipeline；The outlet of described marsh liquid filter and described water filter is connected with solution outlet tube each through pipeline.

2. a kind of pulling type biogas slurry as claimed in claim 1 moves irrigation system, it is characterized in that: the upstream side in communication paths between sedimentation tank described in adjacent two is provided with filter between the pond being made up of silk screen, and between described pond, the width of mesh of filter is gradually reduced to sedimentation tank described in afterbody by sedimentation tank described in first.

3. a kind of pulling type biogas slurry as claimed in claim 2 moves irrigation system, it is characterised in that: between each described pond, the upstream side of filter is provided with aerator.

4. a kind of pulling type biogas slurry as claimed in claim 1 moves irrigation system, it is characterised in that: the bottom of sedimentation tank described in every one-level is provided with aeration deodorizing device.

5. a kind of pulling type biogas slurry as claimed in claim 1 moves irrigation system, it is characterised in that: the pipeline on the pipeline between described marsh liquid filter and described second water pump and between described water filter and described first water pump is respectively arranged with flow control valve.

6. a kind of pulling type biogas slurry as claimed in claim 1 moves irrigation system, it is characterized in that: on described towed vehicle, be provided with air pump, pipeline between described marsh liquid filter and described second water pump is provided with the first check valve, the export pipeline of described marsh liquid filter is provided with the first open and close valve, it is provided with the air inlet that trachea is connected with described air pump at the top of described marsh liquid filter, the bottom of described marsh liquid filter is provided with outlet, the outlet of described marsh liquid filter is provided with the second open and close valve.

7. a kind of pulling type biogas slurry as claimed in claim 6 moves irrigation system, it is characterized in that: the pipeline between described water filter and described first water pump is provided with the second check valve, the export pipeline of described water filter is provided with the 3rd open and close valve, it is provided with the air inlet that trachea is connected with described air pump at the top of described water filter, the bottom of described water filter is provided with outlet, the outlet of described water filter is provided with the 4th open and close valve.

8. a kind of pulling type biogas slurry as claimed in claims 6 or 7 moves irrigation system, it is characterised in that: described marsh liquid filter and water filter all adopt laminated filter.

9. a kind of pulling type biogas slurry as claimed in claim 1 moves irrigation system, it is characterised in that: described biogas slurry inlet place is provided with the coarse filter being made up of silk screen.