JPS5914437Y2 - Insulation material supply device to greenhouse - Google Patents

Description

[Detailed description of the invention] This invention is a greenhouse material used to insulate the inside and outside of a greenhouse by supplying a heat insulating material such as a low-density material such as styrofoam particles to the roof, side walls, etc. of the greenhouse. The present invention relates to a heat insulating material supply device.

There are various ways to transport low-density insulation materials by air.
Here, we will take as an example what is generally called a pellet house, which uses expanded polystyrene pellets as a heat insulating material.

A pellet house is a device for keeping plant and animal growth rooms warm.

As shown in Fig. 1, the structure is a double-walled house 1 in which both the roof part 1a and the side wall part 1b are composed of an outer wall and an inner wall. The temperature difference between the inside and outside of the house 1 is maintained by filling the house with a heat insulating material 2 made of a material.

Therefore, the heat insulating material is air-transported using a filling duct, filled between the walls of the house, and discharged from between the walls.

During filling, the heat insulating material supplied from the tank 3 for storing heat insulating material is air-transported by the main blower 4, and during discharge, the heat insulating material filled between the walls of the house is sucked and discharged by the blower 4.

In FIG. 1, solid arrows indicate the air flow when filling the insulation material, and broken arrows indicate the air flow when the insulation material is discharged (recovering and storing the insulation material in the tank).

In such a pellet house, the insulation material 2 is generally drained during the day and the liquid gap is filled, so it is necessary to take it in and out of the tank 3 at least once a day.
During pneumatic transportation, static electricity is generated due to friction between the insulation materials or between the insulation materials and the transport duct structure material, causing the insulation materials to become lumpy and cause damage to insulation material supply drive devices such as rotary valves and ejectors. Not only is the filling of materials into the pellet house not carried out smoothly, but the insulation material filled in the outer and inner walls of the house adheres to the outer and inner walls, and even when the insulation material discharge operation starts, the insulation material is not completely discharged, resulting in a pellet house. This is a factor that blocks sunlight from entering the interior.

Regarding suppressing the generation of static electricity in heat insulating materials such as conventional low-density heat insulating materials such as Styrofoam, ■ Use conductive materials such as iron plates for air transport ducts.

■ Ground transportation ducts, etc.

■ Periodically apply antistatic agents to insulating low-density materials.

■ Regularly moisturize insulating low-density materials.

Measures have been taken.

Measures in (2) and (2) are almost always taken, regardless of the size of the pellet house, but these alone are not sufficient, and the measures (2) and (3) are becoming more important.

Generally, as a method for items ① and ②, as shown in Figure 2, dilute an antistatic agent in water and manually operate an agricultural sprayer to spray it on the insulation material when filling it with the insulation material. A method is being taken.

Figure 2a shows a case where a hole is made in the tip duct part of the insulation material supply drive device 6 and the agricultural sprayer 7 is inputted to forcefully spray the air stream. This is a case where the agricultural sprayer 7 is used to spray from a part of the upper hopper, and in FIG.

This kind of work is relatively easy to do manually in a relatively small pellet house because the tank capacity is small and the amount of insulating low-density material to be taken in and out is small.

However, with the recent enlarged pellet houses, the spraying takes a long time, and the target pellet house has to be sprayed many times, requiring many operating points, making it difficult to operate manually.

Moreover, according to these methods, since the antistatic agent is forcibly sprayed without adjusting the airflow, there is some doubt as to whether the antistatic agent was sufficiently and efficiently applied to the heat insulating material.

That is, the effect of an agricultural sprayer is determined by a single touch, and a constant effect cannot be expected.

This idea uses an ultrasonic humidifier to supply fine particles of a solution containing an antistatic agent to the outlet of the insulation material of the tank.
The purpose is to easily suppress the generation of static electricity in insulation materials.

An embodiment of this invention will be described below with reference to FIG.

In FIG. 3, a heat insulating material hopper feeder assembly 9 is attached to the upper part of the heat insulating material supply drive device 6. As shown in FIG.

A mixture of air and a heat insulating material 2 made of a heat insulating low-density material such as styrofoam falls from an upper tank 3 to the hopper feeder assembly 9, and a considerable amount of external air is sucked through the side opening 10.

The side opening 10 has two plates 11a each having a large number of small holes.
, llb, one side 11a can be fixed, and the other side 11b can be slid and fixed, and the amount of air sucked into the hopper feeder assembly 9 can be adjusted.

In addition, an ultrasonic humidifier 12 is installed between the side opening 10 and the hopper feeder assembly 9, and ultrafine particles of a solution containing an antistatic agent (known in the art) are sprayed into the mixing chamber 13 at the center of the hopper feeder assembly 9. The material, air, and ultrafine particles of the antistatic agent solution are mixed and attracted to the heat insulating material supply drive device 6.

Note that 14 is a heat insulating material outlet portion of the tank 3.

As described above, this invention supplies heat insulating material inside the tank to the roof, side walls, etc. of the greenhouse to insulate the inside and outside of the greenhouse. Since the structure is equipped with an antistatic device that supplies fine particles of a solution containing a (static) inhibitor, it efficiently and continuously prevents static electricity (electrostatic) from the insulation material that is sequentially delivered from the tank to the greenhouse. By mixing fine particles containing the antistatic agent, it is possible to continuously and efficiently supply the insulation material coated with the antistatic agent to the greenhouse, making it possible to quickly fill the insulation material in the greenhouse and ensure stability at all times. It can be expected to have an antistatic effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a general example of a temperature insulating material supply device, FIG. 2 is a schematic diagram showing a conventional one, and FIG. 3 is a schematic diagram showing an embodiment of this invention. In the figure, 3 is a tank, 2 is a heat insulating material, 1a is a roof of the greenhouse, 1b is a side wall of the greenhouse, 14 is a heat insulating material outlet, 12
1 is an ultrasonic humidifier, and 10 is a side opening for intake of external air. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] (1) In a system that insulates the inside and outside of the greenhouse by supplying the insulation material inside the tank to the roof, side walls, etc. of the greenhouse, a solution containing an antistatic agent is applied to the outlet of the insulation material of the tank using an ultrasonic humidifier. A heat insulating material supply device for a greenhouse, characterized by being provided with an antistatic device that supplies fine particles. (2) The apparatus for supplying heat insulating material to a greenhouse as set forth in claim 1 of the utility model registration claim, characterized in that a mixture of fine particles and external air whose flow rate is adjustable is supplied to the insulating material outlet. .