CN106900184A - Facility canopy room soil rotary tillage steaming sterilizer - Google Patents

Abstract

The invention discloses a steam sterilizer for soil rotary tillage in facility sheds, which comprises a steam sterilizer power supply device tractor, a rotary tiller, a steam box, a steam delivery hose and a steam generating device; when working, the tractor drives the rotary tiller and the steam generator. The steam sterilizer moves forward, and when the steam sterilizer moves forward, it drives a long enough steam conveying hose to advance, and the other end of the hose communicates with the oil-fired boiler outside the shed; Soil Rotary Tilling Steam Sterilizer for Plowing and Sterilizing.

Description

Facility shed soil rotary tillage steam disinfection machine

technical field

The invention relates to soil rotary tillage and soil disinfection technology. The soil rotary tiller adopts a rotary tiller to perform rotary tillage on soil. Soil disinfection uses a boiler outside the shed as a heat source to generate steam, and the steam passes through a pipeline into a nozzle buried in the soil to disinfect and sterilize the soil, which belongs to the technical field of agricultural engineering.

Background technique

Soil is the foundation of planting crops, the most important factor determining the growth environment of plant roots, and also the medium and breeding place for the spread of diseases and insect pests. The annual production of vegetables in the facility, the accumulation of pathogenic microorganisms in the soil will cause continuous cropping obstacles, resulting in a decline in crop yield and quality. In addition, under the conditions of facility cultivation, the soil is easy to compact, the air permeability decreases, and the deterioration of soil physical and chemical properties is more serious in facility vegetable cultivation. The chemical method is mainly based on soil chemical fumigation. The main fumigant is methyl bromide. Although chemical fumigation has the characteristics of high efficacy, small environmental restrictions, wide application range and strong penetration, long-term use of this method will cause serious damage to the soil. pollute.

The invention is a disinfection method for killing pathogenic microorganisms such as weeds, bacteria, fungi and viruses by feeding hot steam into the soil. Steam disinfection helps to improve soil aggregate structure and restore aggregate activity, improve soil drainage and permeability, has the advantages of efficient cleaning, non-toxic, no residue, can be sown in a short period of time after treatment, and can sterilize the substrate. Rotary tillage also helps to loosen the soil and allow the steam vent to travel through the soil. Through document search, do not see the public report identical with the present invention.

Contents of the invention

The purpose of this technique is to provide a soil rotary tillage steam sterilizer suitable for both rotary tillage and disinfection in a facility shed, and to perform rotary tillage and disinfection of the soil in the shed.

In order to achieve the above object, the technical solution adopted by the present invention: a facility shed soil rotary tillage steam sterilizer, is characterized in that it includes a steam sterilizer power supply equipment tractor, a rotary tiller, a steam box, a steam delivery hose and a steam generating device ; When working, the tractor drives the rotary tiller and the steam disinfection box forward, and when the steam disinfection box moves forward, it drives a sufficiently long steam delivery hose, and the other end of the steam delivery hose communicates with the steam generating device;

The rotary tiller includes a frame, a rotary tiller and a baffle; when working, the tractor drives the rotary tiller to till the soil, and the rotary tiller makes the soil finely divided, loosening the soil and reducing the impact of the soil on the steam delivery hose and detachable The resistance of the nozzle and the baffle level the soil after rotary tillage, which is helpful for the uniform disinfection of the soil;

The steam delivery hose includes a main steam delivery pipe and two steam delivery branch pipes;

The steam transmission branch pipe includes an input end and multiple output ends, the steam transmission main pipe includes an input end and two output ends, and the two output ends of the steam transmission main pipe are respectively connected to the input ends of the two steam transmission branch pipes;

The output ends of the steam branch pipes are respectively connected to the input ports of the detachable nozzles;

The steam box includes a detachable nozzle, box body, steam main pipe, steam branch pipe, solenoid valve and rollers; the lower part of the steam box is equipped with rollers, and the steam box is located at the rear of the rotary tiller and driven by the rotary tiller; the steam generates The device adopts an oil-fired boiler, one end of the main steam transmission pipe is located in the oil-fired boiler, and the other end is connected to the input end of the steam transmission branch pipe;

A solenoid valve is arranged on the steam transmission branch pipe, and the solenoid valve is electrically connected with the controller;

The detachable nozzle and the steam branch pipe are all set on the box body;

The steam delivery branch pipes are all perpendicular to the ground, and the detachable nozzles connected to the steam delivery branch pipes are hollow cylinders, and the outer surface of the cylinders is provided with multiple round holes;

When working, the rotary tiller drives the soil steam disinfection box to roll forward. The lower part of the steam box is equipped with rollers to prevent soil accumulation. The controller controls the solenoid valve to open or close, thereby controlling the steam injection mode, which is controlled by the boiler. The amount of steam is determined, mainly divided into two types: when the amount of steam is sufficient, the solenoid valves are all opened, and the two steam delivery branch pipes are all filled with steam;

When the amount of steam is insufficient, in order to ensure the soil sterilizing effect, a solenoid valve is used to control one of the steam transmission branch pipes to be filled with steam. ;

The detachable nozzle is a hollow cylinder structure, and a hollow sponge sphere is arranged on the upper part of the hollow cylinder;

The hollow sponge sphere is tangent to the inner surface of the hollow cylinder structure.

Further, the place where the hollow sponge sphere is tangent to the inner surface of the hollow cylinder structure is fixed

set the connection.

The invention is suitable to be carried out in facility sheds. The sterilizer is small in size and high in operating efficiency, and can effectively sterilize the soil, and the combination of rotary tillage and disinfection helps to improve the structure of soil aggregates and restore the activity of aggregates, improving soil drainage and permeability.

For the aforementioned soil rotary tillage steam disinfection machine, a 1.4m×0.8m×0.6m steam disinfection box is installed behind the rotary tiller, and 13 vertically downward cylindrical steam tubes are placed in the disinfection box, and each tube is long The steam pipe is 30cm long, and there are nozzles on the steam pipe, and there are 12 air outlets and 1 downward air outlet evenly around each nozzle.

Rotary tillage and disinfection are carried out at the same time during the operation. The rotary tiller breaks up the soil in the greenhouse in the front and then performs disinfection for the disinfection steam pipe in the back to reduce a lot of resistance. The boiler is placed outside the greenhouse, and the soil steam disinfection uses the boiler outside the shed as a heat source to generate steam. The steam is passed through the pipe to the nozzle buried in the soil, and the steam is sprayed out from the air outlet to disinfect the soil. This design is suitable for steam sterilizers with a disinfection depth of 15-30cm, in which the soil temperature at a depth of 15cm is above 75°C, and the disinfection area within 5 hours is not less than 200m ² .

Description of drawings

Fig. 1 Overall diagram of the facility shed soil rotary tillage steam sterilizer;

Fig. 2 Structural diagram of rotary tiller;

Fig. 3 front view of the soil steam disinfection box in the facility shed;

The left view of the soil steam disinfection box in Fig. 4 facility shed;

The top view of the soil steam disinfection box in the facility shed of Fig. 5;

Figure 6 Soil steam pipes and nozzles in the facility shed.

Fig. 7 is a schematic diagram of the connection between the hollow cylinder structure and the hollow sponge sphere structure.

detailed description

The technology will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is the overall view of the steam sterilizer for soil rotary tillage in facility sheds, which includes steam sterilizer power supply equipment tractor 1, rotary tiller 2, steam box 3, steam delivery hose (steam main pipe and steam branch pipe) and steam Generating device (oil-fired boiler). When working, the tractor drives the rotary cultivator and the steam sterilizer to move forward. When the steam sterilizer moves forward, it drives a long enough steam delivery hose. The other end of the hose is connected to the oil-fired boiler outside the shed.

Fig. 2 rotary tiller structural diagram, it comprises frame 2-1, rotary tiller 2-2 and baffle plate 2-3; During work, tractor drives rotary tiller to soil rotary tiller, and rotary tiller makes soil clod finely crushed, It can loosen the soil and reduce the resistance of the soil to the steam pipe and nozzle. The baffle will level the soil after rotary tillage, which is helpful for the uniform disinfection of the soil.

The lower part of the steam box is provided with rollers, and the steam box is located at the rear of the rotary tiller and is driven by the rotary tiller; one end of the main steam transmission pipe of the oil-fired boiler is located in the oil-fired boiler, and the other end is connected to one end of the steam transmission branch pipe, and the other end of the steam transmission branch pipe One end is connected to the steam nozzle; the steam transmission branch pipe is provided with a solenoid valve, and the solenoid valve is electrically connected with the controller.

The steam transmission branch pipes are all perpendicular to the ground, and the nozzles connected to the steam transmission branch pipes are hollow cylindrical structures, and the outer surface of the cylinders is provided with multiple round holes;

There are two rows of detachable nozzles, one row is 7, the other row is 6, and each row is connected to the output end of a steam transmission branch pipe.

Fig. 3---6 is the structural diagram of the soil steam disinfection box in the facility shed, which includes a detachable nozzle and a steam pipe 3-1, a box body 3-2, a steam transmission main pipe 3-3, a steam transmission branch pipe 3-4, an electromagnetic Valves 3-5 and rollers.

During work, the rotary tiller drives the soil steam disinfection box to roll forward, and the bottom of the steam box is provided with rollers 3-7 to prevent soil accumulation. The electronic control part is controlled by the STM32 controller to open or close the solenoid valve 3-5, so as to control the steam injection mode. The injection mode is determined by the steam volume of the boiler, which is mainly divided into two types: when the steam volume is sufficient, the solenoid valve 3-5 is all Open, the two steam transmission branch pipes 3-4 and 3-6 are all filled with steam; when the steam volume is insufficient, in order to ensure the soil sterilization effect, one of the steam transmission branch pipes 3-4 is controlled by a solenoid valve to make it full of steam, After a period of disinfection, the electromagnetic valve controls the steam transmission branch pipe 3-4 to stop steaming, and the other branch pipe 3-6 starts to pass steam, and works intermittently until the disinfection requirements are met. -1 to disassemble and replace with a new nozzle. The characteristic of the nozzle is that there are 12 air outlets (diameter 2mm) and 1 downward air outlet evenly around each nozzle, and the air outlets in each circle are distributed at 90°, and the distance between the air outlets in each circle is 3cm, which is easy for steam to flow in the soil Spread to the surrounding and below, and fully disinfect.

Claims (2)

1. The facility shed soil rotary tillage steam sterilizer is characterized in that it includes a steam sterilizer power supply equipment tractor, a rotary tiller, a steam box, a steam delivery hose and a steam generating device; during work, the tractor drives the rotary tiller and The steam sterilizer moves forward, and when the steam sterilizer moves forward, it drives a sufficiently long steam delivery hose, and the other end of the steam delivery hose communicates with the steam generating device; The rotary tiller includes a frame, a rotary tiller and a baffle; when working, the tractor drives the rotary tiller to till the soil, and the rotary tiller makes the soil finely divided, loosening the soil and reducing the impact of the soil on the steam delivery hose and detachable The resistance of the nozzle and the baffle level the soil after rotary tillage, which is helpful for the uniform disinfection of the soil; The steam delivery hose includes a main steam delivery pipe and two steam delivery branch pipes; The steam transmission branch pipe includes an input end and multiple output ends, the steam transmission main pipe includes an input end and two output ends, and the two output ends of the steam transmission main pipe are respectively connected to the input ends of the two steam transmission branch pipes; The output ends of the steam branch pipes are respectively connected to the input ports of the detachable nozzles; The steam box includes a detachable nozzle, box body, steam main pipe, steam branch pipe, solenoid valve and rollers; the lower part of the steam box is equipped with rollers, and the steam box is located at the rear of the rotary tiller and driven by the rotary tiller; the steam generates The device adopts an oil-fired boiler, one end of the main steam transmission pipe is located in the oil-fired boiler, and the other end is connected to the input end of the steam transmission branch pipe; A solenoid valve is arranged on the steam transmission branch pipe, and the solenoid valve is electrically connected with the controller; The detachable nozzle and the steam branch pipe are all set on the box body; The steam delivery branch pipes are all perpendicular to the ground, and the detachable nozzles connected to the steam delivery branch pipes are hollow cylinders, and the outer surface of the cylinders is provided with multiple round holes; When working, the rotary tiller drives the soil steam disinfection box to roll forward. The lower part of the steam box is equipped with rollers to prevent soil accumulation. The controller controls the solenoid valve to open or close, thereby controlling the steam injection mode, which is controlled by the boiler. The amount of steam is determined, mainly divided into two types: when the amount of steam is sufficient, the solenoid valves are all opened, and the two steam delivery branch pipes are all filled with steam; When the amount of steam is insufficient, in order to ensure the soil sterilizing effect, a solenoid valve is used to control one of the steam transmission branch pipes to be filled with steam. ; The detachable nozzle is a hollow cylinder structure, and a hollow sponge sphere is arranged on the upper part of the hollow cylinder; The hollow sponge sphere is tangent to the inner surface of the hollow cylinder structure. 2. The facility greenhouse soil rotary tillage steam sterilizer according to claim 1, characterized in that, the hollow sponge sphere is fixedly connected to the inner surface of the hollow cylinder structure at a tangent position.