JP2001008602A - Insect control of flour mill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for efficiently and reliably controlling insects from a machine in a four grinding factory or a grain grinding factory. SOLUTION: A series of machines in a factory properly are divided and the flour mill is heated by feeding hot air to every divided machine. Every divided machine may separately be wrapped with cloth or a flexible sheet and be heated by blowing hot air inside the wraps. Insect control of machines in milling treatment composed of plural consecutive processes reliably is carried out while reducing operator's labor without the need for a large scale equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterminating method for machinery in which a plurality of machines such as a milling machine are continuously installed for each processing step, and more particularly to a safe and efficient continuous machine using heat. On the anthelmintic method.

[0002]

2. Description of the Related Art A milling process is composed of several processing steps. In a mill, a machine for each processing step is continuously installed so as to form a series of milling steps. Each processing machine in each processing step has a rotating unit, a vibrating unit, and the like inside, and raw wheat is conveyed at a predetermined speed. However, the inside of each machine has corners and gaps instead of continuous smooth curved surfaces. Then, there are places where the flow of the raw material is stagnant at such corners and various gaps, and insects may enter the stagnant places of such flow.

[0003] Such insects (the insects referred to here are beetles of about 4 mm and 2 mm in adult length, such as Hirakutokunustomodoki and Kakumunehiratamushi, respectively, which themselves contain toxins and pathogens. Conventionally, to prevent accidental inclusion in the product, when the machine is stopped on holidays or the like, the operator cleans the inside of the machine to remove deposits. , Was anthelmintic.

It is known that an anthelmintic method is a method of heating and treating an entire factory overseas, for example.

[0005]

However, since the inside of the machine is narrow and has various driving parts inside, the cleaning work is troublesome, and the fine parts must be focused on. Therefore, the burden on the worker was large. It takes time to clean well,
There is a problem in adjusting the operation suspension time in the factory and securing a large number of workers for performing the cleaning work in a short time.

In the method of deworming by heating the entire interior of a mill to a predetermined temperature, it is necessary to seal windows, doors and all other openings provided in the factory so that heat does not escape. However, there is a problem that the preparation becomes large and time-consuming. Also, heating the entire factory requires a great deal of heat energy, and it takes time to transfer the heat, so it takes tens of hours to raise all the parts to the deworming temperature. However, there was a problem in terms of productivity.

On the other hand, when the machines in a mill are individually heated, various processing machines installed in the mill are connected to other machines by pipes or the like. The heat escaped to the other machines through the passage, and it was difficult to heat each machine sufficiently to the inside.

Specifically, for example, in a flour mill, machines of the same type are collectively arranged on the same floor, for example, a roll machine is arranged on a lower floor and a shifter is arranged on an upper floor. -Other types of machines are connected to each other by means of ports or conveying pipes. Then, the semi-finished products processed on the upper floor are sequentially transferred to the machines on the lower floor by gravity using a pipe called a sport, and the semi-finished products processed on the lowest floor are usually transferred to the top floor by a pneumatic transport pipe called a pneumatic pipe. Has been transferred to Therefore, since each machine is connected to another machine by a pipe, heat escapes through a sport or a pneumatic pipe, and it has been difficult to locally heat only one machine.

Furthermore, since heat-sensitive parts such as electric equipment are arranged in the factory, if the whole factory is heated, these equipments may be damaged.

According to the present invention, the burden on the worker who performs the deworming operation is small, and even a small number of workers can easily and surely deworm the insect, and it is safe for the human body and equipment, and can be used like a flour milling machine. It is an object of the present invention to provide a method for controlling insects in a continuous machine that can reliably control insects in a short time and with little heat energy even when a plurality of machines are connected by pipes.

[0011]

In order to solve the above-mentioned problems, the present invention divides a series of processing machines in which a plurality of machines are connected by pipes or the like as appropriate, and heats and separates each of the divided machines. I decided that.

[0012] In particular, milling machines and the like pay attention to the fact that the machines in each processing step can be relatively easily disconnected from the connection of the processing paths, and the temperature required to kill insects and their eggs is not so high. Then, at the mill, the connected machines are appropriately separated along the processing path, and the separated machines are separated by a flexible sheet-like member such as cloth, and the separated internal space is heated. The wind was blown in and the divided machines were heated to destroy the insects and eggs inside the machines.

The main pests and their eggs on flour etc. are 60
If heated to a temperature of more than 80 ° C., the air will surely die, so that a temperature of about 80 to 120 ° C. is sufficient. The time for blowing the hot air is based on the time at which the inside of the machine where the temperature hardly rises, for example, the inside of the powder accumulated in the corner of the machine reaches the predetermined temperature required for the above-described deworming. Normally, it is sufficient to blow hot air for about 120 minutes, and the temperature is appropriately selected depending on the outside air temperature during the deworming operation, the size of the deworming machine, the temperature of the hot air, and the like.

Specifically, the maximum thickness of the powder that may be deposited inside the machine is estimated, and the maximum thickness is determined from the time when the inside of the machine rises to the temperature at which insects and eggs are completely killed. Accordingly, even when the powder contains insects or eggs, the insects can be dewormed reliably. If it is necessary to keep the temperature constant, the holding time is included in the predetermined time.

The machine may be divided for each processing step, or a plurality of machines for a plurality of processing steps may be collectively divided as one unit, and the machine for one processing step may be further divided into a plurality of units. May be. Further, a plurality of machines arranged in series may be combined, or a plurality of machines arranged in parallel may be combined. When a plurality of machines are combined, care should be taken to ensure that the machines located downstream of the hot air and the machines located at the ends are sufficiently heated.

The blowing of hot air into the machine is not limited to the direction of processing inside the machine, and hot air may be blown in the opposite direction or from the middle of the machine in the front-rear direction of the machine.

The hot air may be generated by providing a blower and a heating unit, and a portable device is preferable. The heat source of the heating section is
Electricity, steam, and other types do not matter. The amount of air to be blown varies depending on the size of the machine to be heated, but is 2 to 50 m3.
/ Min, preferably 5 to 10 m3 / min. The amount of blown air is appropriately increased or decreased depending on the presence or absence of the cover.

Further, the heating of the machine is not limited to hot air, but may be another heating device such as a combustion device or an infrared irradiation device.

As the partition member for partitioning the machine, an air-permeable nylon filter cloth is effective. However, a non-air-permeable sheet member such as cotton or other material, or PVC sheet may be used. Further, a high effect can be obtained by arranging a permeable cloth on the inside and a non-permeable cloth on the outside to form a double structure in which a gap is provided between the two members. When a sheet having no air permeability is used, the position of the discharge port is appropriately set so that the warm air spreads over the entire machine.

Further, the partition member is not limited to a cloth member,
An assembled panel member or the like may be used.

When the machine itself has a high hermeticity, the machine is not covered with a partition member, but hot air is directly blown into the inside of the machine from the entrance and the exit of the machine, and the hot air is passed through the machine. May be heated. Further, it is more effective to make the hot air passing through the machine flow around the machine.

In this way, the insects can be completely exterminated by heating each machine, and the exterminating operation of all machines can be performed by sequentially performing the exterminating operation on each machine. Thus, it is not necessary to seal the entire factory, and the deworming of the machinery can be performed reliably and safely.

The temperature of the hot air to be used is 80 to 120 ° C. However, since the humidity is low, even if it directly hits the skin, it does not cause a burn. In addition, since the temperature of the machine itself is not so high, and heating can be performed while avoiding a portion weak to heat as appropriate, the operating portion and the control section are not damaged.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a method for controlling insects in a continuous machine according to the present invention will be described.

FIG. 2 shows the overall configuration of the mill 30.
The flour mill 30 is a building having 5 to 6 floors, storage tanks 32 and 34 are provided on left and right sides of the building, and processing machines are installed on each floor. For example, the roll machine 36 is located on the third floor.
However, a purifier 38 is provided on the fourth floor, a shifter 40 is provided on the fifth floor, and a filter 42 is provided on the sixth floor. These processing machines are connected by a pipe 44, and products are stored in a storage tank 34 on the right side of the figure by an up-conveyor 46.

In the deworming operation, the connected machines are first divided appropriately. That is, the connecting pipe connecting each machine is detached from the machine mounting portion or the like, and the connection with the preceding and following machines is released. Then, the whole of the divided machine is covered with a cloth as shown in FIG. 1, and a blowing port of a warm air device is inserted into the cloth. At that time, a thermometer may be previously installed inside the machine to measure the temperature of the machine.

Thereafter, a hot air of a predetermined temperature is blown into the inside from a hot air device to heat the machine. The hot air device includes an electric heater and a blower. The warm air blown into the cloth heats the machine by flowing into the inside of the machine or contacting the outer wall portion, and gradually flows out through the cloth. When the warm air is blown into the cloth for a predetermined time, the blowing of the warm air is stopped and the cloth is removed.

In this case, the whole machine is almost uniformly heated to a predetermined temperature, and insects and their eggs may adhere to the machine,
Alternatively, even when insects or the like are lurking in the powder remaining inside the machine, they can be reliably killed.

Therefore, if the whole machine is heated to 60 ° C. or more, the attached insects and the like will be killed, so that only a small amount of heat energy is required and the pest control of the milling machine can be performed easily and reliably. In addition, by sequentially performing such operations for all the machines, it is possible to deworm the machines in the entire mill.

(Experimental Example 1) FIG. 1 shows a blank finisher 2 used in the experiment. The blanc finisher 2 is installed at a later stage of the milling process, and is a machine that is relatively easy to store powder among machines used in a mill.

The blank finisher 2 is a machine for further separating flour from bran, which is a wheat skin, and a cylindrical net (not shown) is fixed inside the net, and the net is placed at the center of the net. A beater (not shown) having a coaxial rotating shaft is rotatably mounted. When wheat is introduced into the net from the inlet 4, the wheat is rubbed by the beet, and the flour on the bran is removed. The bran is collected and the bran remains on the net and is taken out.

The used blank finisher has a width of 560 m.
m, length 1220 mm, height 730 mm, BF1-45110 type manufactured by Meiji Kikai Co., Ltd. As the cover 6 covering the whole, a nylon filter cloth having air permeability and a nylon taffeta having almost no air permeability were used. Note that a column may be set up on the top of the blank finisher 2 to maintain a space between the blank 6 and the cover 6.

On the other hand, FIG.
The flour 20 was deposited on the plate material 8 to a thickness of about 40 mm as shown in FIG. 1, and an appropriate number of pests and sensors for measuring temperature (both not shown) were arranged in the flour 20.

In this state, hot air of about 80 degrees is generated by an erofin heater (not shown) using steam, and the temperature and the amount of hot air are changed from the blowing pipe 11 to the discharge port 10 side of the blank finisher 2. And heated to a predetermined temperature, and the number of surviving pests and the temperature were measured.

FIG. 4 shows the results. This indicates that if the temperature of the machine exceeds 60 degrees on average, the insects inside can be completely killed. NF is a nylon filter cloth, and NT is a nylon taffeta.

Test d is a similar experiment with the cover 6 changed. This arranges a cotton cloth with air permeability inside,
A non-air permeable nylon taffeta was hung on the outside, and the test was performed in the same manner as in the above experiment. As a result, the Bran finisher 2 could be raised to a predetermined temperature with less energy.

From the above experiments, it can be seen that the case where the machine is covered with a permeable cloth or the like is more effective in increasing the temperature (comparison between tests b and c). If the hot air to be blown in is abundant, using a cloth with moderate ventilation will allow the hot air to permeate from the inside to the outside evenly, and the inner space and the outer space will be in the boundary layer with the outer surface of the cloth. Is thermally blocked, the temperature of the cloth itself becomes equal to the temperature of the hot air in the internal space, and it is presumed that it becomes difficult for heat to escape to the outside. On the other hand, in the case of non-breathable cloth, the temperature in the boundary layer with the outer surface of the cloth is equal to the outside air temperature, and the temperature of the cloth itself is about the average value of the outside air temperature and the internal hot air temperature, The flow of hot blast air inside will flow out through the cloth when it comes into contact with the cloth, which will be disadvantageous for the temperature rise of the internal space.

It is also found that it is more effective to use a double cover on the inside and outside, and to use a material having air permeability inside and a material having low air permeability outside (comparison between tests c and d). . This is inside the inner fabric with good breathability,
Since the circulation of hot air is very good and the hot air spreads to all parts of the machine, it can be heated uniformly and efficiently, and the outer sheet material blocks the release of heat. Is considered to be acting as a heat insulating layer.

(Experimental Example 2) Next, a heating experiment using another milling machine will be described.

FIG. 5 shows a purifier.

As shown in FIG. 5, the purifier 50
And a cover made of nylon filter cloth and nylon taffeta
To cover the top and side surfaces of the purifier 50.
Then, a blowing pipe 11 of a heater (not shown) was inserted into the inside of the cover 6, and hot air was blown. At that time, the position of the tip of the blow-out pipe 11 was set substantially at the center of the inside of the cover 6.

The heater used was the same as that used in Experimental Example 1. The air volume was 10 m3 / min, the temperature of the hot air at the outlet of the blowing pipe 11 was about 90 degrees, and the blowing time was 170 minutes. A thermometer is attached to the inside of the residual powder in the left and right feeder ports (a in FIG. 5), near the center of the left and right shaking chutes (b in FIG. 5), and at the upper suction port flange (c in FIG. 5). Was.

The warm air blown out from the blow-out pipe 11 is
In addition to directly entering the inside of the purifier 50, the heat circulates over the entire purifier 50 and is heated. Result is,
The internal temperature of the powder remaining in the left and right feeder ports is 64
° C, the temperature of the iron plate near the center of the left and right shaking chutes was 76 ° C, and the temperature of the iron plate at the upper suction port flange was 73 ° C.

The powder remaining inside the purifier 50 was taken out and inspected. Insecticid bodies were found in the residual powder, but no surviving insects were found. The residual powder was placed in a glass container and kept at 25 degrees for 2 months for observation. No insects were found inside even after 2 months, and it was determined that the eggs were also killed by the heating.

(Experimental Example 3) Next, an example in which a machine is directly heated without using a cover will be described.

FIG. 6 shows a conveyor 44 for collecting products, which is called an up-powder conveyor.

The conveyor 44 collects flour, which is a product that has passed through a sieve, by grade, and is one of five-row chain conveyors. The entrance of the flour is a plurality of up flour sports 24 corresponding to the number of outlets of the sieve,
4 is provided with a multi-directional switching cut 26 for deciding which section to enter.

In the experiment, first, all the connecting tubes 28 provided at the respective outlets of the sieve were removed, and the tubes 28 were bent to close the openings, and the inlet 21 was attached to the lid provided at the center of the conveyor 44. Was. An air passage from a hot air source was connected to the blow-in port 21, and a filter filter cloth 22 was attached as a breather to the head side and the tail side to prevent blowing of powder from the inside and to serve as a hot-air exhaust port.

Then, the inlets 21 to 8 at the center of the conveyor
Warm air of 0 degree or more was blown, and the temperature of the insects was measured using a thermometer installed inside.

Although it was confirmed that the warm air almost enters the average of each section of the conveyor 44, unlike the above-mentioned example, since the warm air is actively discharged out of the machine, a considerably large air volume is required. there were.

The experimental results showed that the entire conveyor 44 could be sufficiently heated to 60 ° C. or higher to obtain the insecticidal effect, and the required air volume increased, but the internal temperature was increased to obtain a sufficient insecticidal effect.

In a so-called up-floor conveyor in a mill, it is only necessary to remove the tube 28 below the sieving machine without removing a large number of complicated sport pipes, and the efficiency of the conveyor 44 itself is high due to its high hermeticity. In addition, a large effect can be obtained since the cleaning is relatively difficult during the milling process.

In the above experimental examples, with respect to the bearings and other parts of the machine, the temperature rise in this range does not cause any trouble, and the electric parts and electrical components are located outside the apparatus. Nothing happened.

Further, in the above-described example, the description has been given of the milling machine. However, the present invention is not limited to this, and can be applied to other continuous machines.

Further, in order to heat each machine, the equipment may be modified in advance so that division and partitioning of each machine can be performed smoothly. For example, a separation mechanism may be set in the middle of a pipe, or a partition plate may be partially installed around the machine to facilitate division.

[0056]

According to the anthelmintic method of the present invention, the central part of the powder accumulated inside the machine can be sufficiently heated, so that the insects and their eggs can be completely killed, and Can be prevented.

Since insects can be disinfested for each individual machine using air at about 80 degrees which is relatively easy to handle, insect disinfestation work can be performed even when factory downtime or maintenance time is short.

The operation does not require any special training, and can reduce the burden on the deworming worker, so that a small number of workers can easily perform the deworming operation of the machine by such a method.

Once the deworming operation is completed, normal operation can be performed as soon as the machine temperature decreases.

[Brief description of the drawings]

FIG. 1 is a diagram showing a blank finisher according to the present invention.

FIG. 2 is a diagram showing a flour mill.

FIG. 3 is a diagram showing a covered blank finisher.

FIG. 4 is a view showing an experimental result.

FIG. 5 is a view showing a purifier.

FIG. 6 is a diagram showing a conveyor.

[Explanation of symbols]

 2 Bran finisher 4 Inlet 6 Cover 8 Plate material 10 Outlet 11 Outlet pipe 20 Flour 21 Inlet 22 Filter filter cloth 24 Sport 26 Switching cut 28 Tube 30 Flour mill 32,34 Storage tank 36 Roll machine 38 Purifier 40 Shifter 42 Filter 44 Pipe 46 Up-powder conveyor 50 Purifier

Claims (7)

[Claims] 1. A continuous machine in which a series of predetermined processes are performed by connecting machines to be executed for each processing step, wherein the connected processing machines are appropriately divided, and each of the divided machines is A method for controlling insects in a continuous machine, comprising heating the machine and controlling the insects. 2. The method according to claim 1, wherein the periphery of each of the divided machines is partitioned by a partition member, and the temperature in the partition space partitioned by the partition member is increased to heat the machine to a predetermined temperature. The method for controlling insects of a continuous machine according to claim 1. 3. The partition member according to claim 2, wherein the partition member is a sheet-shaped member, and warm air is blown into the inside partitioned by the sheet-shaped member to heat the machine in the partition space. Deworming method of continuous machine. 4. The machine according to claim 1, wherein the hot air is directly sent to the inside of the divided machine, and the hot air is passed through the inside of the machine to heat the machine. The method for controlling insects in a continuous machine according to the above item. 5. The method for controlling insects in a continuous machine according to claim 1, wherein a machine having a plurality of processing steps is divided as one unit. 6. The method according to claim 1, wherein the plurality of machines arranged in parallel are the one unit machine. 7. The method according to claim 1, wherein the continuous machine is a milling machine.