JPH05328864A - Litter disposer - Google Patents

Abstract

PURPOSE:To provide a litter disposer which can remove malodor caused by the ammonia included in animal feces and urine and disinfect the microorganisms with improved working efficiency. CONSTITUTION:The litter disposer 1 can pneumatically suck the litter 41 in the cage 40 together. The disposer 1 has the recovering column 3 and the wet type dust collector 4. When the litter 41 in the cage 40 is introduced through the flexible hose 39 together with air into the upper box A, the recovering column recovers large-sized wastes in the litter 41 sucked into the kraft paper bag 16 set to the position 15 for setting the filter in the filter setter 14. The air containing the small dusts which could not be captured in the column 3 is passed through the sucking chamber 25 in the wet type dust collector 4 and the scrapping part 28 in the throat 27 and subjected to gas-liquid mixing with the fog moist flying up from the lower box D by the blower whereby the dusts are captured into the liquid in the box D. The cleaned air is dehumidified by the draining blades 32 in the draining chamber 26 and exhausted from the outlet pipe 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bedding processing apparatus,
In particular, the present invention relates to a bedding processing device that can safely perform bedding processing work and prevent pollution accidents and the like.

[0002]

2. Description of the Related Art A bedding is often used for raising experimental animals. Since this bedding becomes soiled with the excrement of experimental animals, the bedding needs to be treated regularly. Meanwhile, in the field of pharmacotoxicity experiments and the like, drugs are administered to animals bred using bedding. When a drug is administered to these animals,
After metabolism, it is excreted with manure. For this reason, it is necessary to regularly treat the bedding, but since this treatment generally produces a large amount of dust and sometimes toxic gas, excreted drugs are removed from the bedding. It has been pointed out that there is a risk of dust being absorbed into the body of the person who carries out the treatment together with dust, which is a problem from the viewpoint of occupational safety and health. In addition, there is a problem of microbial contamination accidents through dust, and improvement has been demanded.
Conventionally, special drafts with a hepa filter, dust masks, etc. have been used as countermeasures against these, and the effects have been increased to some extent.

[0003]

However, the above-mentioned conventional special draft with hepa filter, floor covering treatment using a dust mask, etc., has a drawback of high maintenance cost. The fact is that it is not used very often because it has the drawback that work efficiency is not good. An object of the present invention is to provide a bedding treatment apparatus that is clean and has improved work efficiency. Further, it is another object of the present invention to provide a bedding treatment apparatus which can solve the problems of occupational safety and health of workers and can remove the offensive odor of ammonia and the like contained in feces and urine of experimental animals.

[0004]

In order to achieve the above object, the bedding treatment apparatus of the present invention is a bedding treatment apparatus capable of sucking the bedding in the cage together with the air, and the floor sucked together with the air. A large collection of dust in the floor, a collection tower that can be collected in a removable kraft paper bag, and air containing small dust that could not be captured by the collection tower, as a mist-like liquid. And a wet dust collector that captures dust by bringing them into contact with each other.

Further, in the recovery tower, a recovery tower door is provided in the upper box part, the inside of the upper box part is partitioned by a filter fitting, and a bag fitting part is provided in the filter fitting, and the kraft paper is attached to the bag fitting part. The bag is made removable. Further, in the wet dust collector, the upper box part is separated into an intake chamber and a water removal chamber, the lower box part stores liquid, and a throat part is provided at the lower end of the intake chamber, and a screw is provided downstream of the throat part. A wrapping part is provided, and drainage plates are alternately provided in the water removal chamber.

[0006]

Therefore, according to the present invention, the floor bedding of the cage is guided to the upper box part of the recovery tower with the flexible hose together with the air, and is collected in the kraft paper bag attached to the bag attachment part. The dust that cannot be collected by the kraft paper bag passes from the suction chamber of the wet dust collector through the throat portion and comes into contact with the atomized liquid at the scraping portion, and the dust is captured in the liquid. The water contained in the air thus supplemented by the mist-like liquid is captured by the draining plate and falls onto the liquid surface, so the air discharged from the exhaust pipe via the blower contains almost no moisture. It will not be.

[0007]

The present invention will be described below with reference to the illustrated embodiments. 1 to 4 are views for explaining an embodiment of the bedding processing apparatus of the present invention, FIG. 1 is a front view of the embodiment, and FIG.
Is a side view of the embodiment, FIG. 3 is a plan view of the embodiment, and FIG. 4 is an explanatory diagram showing an internal schematic configuration of the embodiment.

In these figures, the bedding processing apparatus 1 is
For example, length 1000 [mm], width 770 [mm], height 1
The housing 2 has a rectangular parallelepiped shape with a size of 550 [mm]. Inside the housing 2, a recovery tower 3, a wet dust collector 4,
A blower device 5 is installed. Large doors 6 with double doors are provided on the front side of the housing 2, and these large doors 6 are attached to the housing 2 by a large door hinge 7 so as to be openable and closable.
The large door 6 can be sealed with a large door sealing handle 8.

The recovery tower 3 comprises an upper box portion A having an upper portion of a rectangular parallelepiped shape, and a lower box portion B having a lower portion of a pyramid shape which is tapered downward. An opening is provided on the front surface of the upper box portion A, and the recovery tower door 9 can be fitted into the opening. This recovery tower door 9 is a recovery tower door hinge 10.
It is attached to the upper box part A so that it can be opened and closed. The recovery tower door 9 is fitted into the opening of the upper box part A and fixed to the upper box part A by the recovery tower door sealing handle 11, so that the upper box part A can be made into a closed box. ing.
In addition, a suction pipe 12 is provided above the rectangular parallelepiped of the recovery tower 3.
Are connected to each other, so that the outside can be communicated with the inside of the upper box portion A of the recovery tower 3 by the suction pipe 12.
The tip of the suction pipe 12 projects from the housing 2, and the one-touch coupler 13 is provided at the tip. The upper part and the lower part inside the upper box part A of the recovery tower 3 are partitioned by a filter fitting 14. The filter mounting bracket 14 is provided with a bag mounting portion 15 having an uneven shape, and a kraft paper bag 16 can be removably mounted on the bag mounting portion 15. Further, in the recovery tower 3, a perforated bottom plate 17 is arranged at the boundary between the upper box part A and the lower box part B. The top part of the lower box part B is connected to the recovery tower drain 19 through the pipe 18 and the other part is connected through the air pipe 20 to the wet dust collector 4
It is connected to the. The recovery tower drain 19 is projected from the housing 2, and a valve 21 is provided at the protruding portion. The kraft paper bag 16 is a bag that can store, for example, about 40 liters of dust, and for example, a kraft paper bag for flooring material delivery such as used α-cellulose chips can be reused.

The wet dust collector 4 has a rectangular parallelepiped shape having a thin upper portion and an upper box portion C and a lower box portion D having a pyramidal shape at the lower portion. The center of the upper box C is connected to the top of the lower box B by an air pipe 20, and the upper part of the upper box C is connected to the suction port of the blower device 5 by an air pipe 22. In addition, the top of the lower box D
It can be communicated with the outside through the drain pipe 23. This drain pipe 23 projects from the housing 2,
A valve 24 is provided on the protruding portion. In the wet dust collector 4, the upper box C is divided into two chambers, an intake chamber 25 and a water removal chamber 26, and the lower box D contains a liquid containing a disinfectant, for example, about 30 [liters]. Stored to some extent. By this disinfectant, bacteria contained in the air as well as microorganisms are disinfected, and the air discharged from the discharge pipe is discharged into the air as clean air. A throat portion 27 is formed at the lower end of the intake chamber 25, and a scraping portion 28 is formed downstream of the throat portion 27. Further, a part of the throat part 27 and the scraping part 28 is positioned so as to be below the surface of the liquid stored in the lower box part D. The liquid level of the liquid stored in the lower box portion D can be adjusted by the adjusting dam 30 of the liquid level adjuster 29 provided on the water removing chamber 26 side. The liquid overflowing from the adjusting dam 30 is drained through the drain trap 31. The interior of the water removal chamber 26 is partitioned by draining plates 32 which are provided alternately in two stages. The uppermost portion of the water removal chamber 26 is connected to the intake port of the blower device 5 via the air pipe 22. The blower device 5 is a blower 3
4, a motor 35, and an accessory device. The blower 34 is installed on a stand 36, and a motor 35 is installed under the stand 36. The blower 34 and the motor 35 are connected by a belt (not shown), and the blower 34 is driven by the motor 35. The air pipe 22 is connected to the intake port of the blower 34, and the discharge port thereof is in communication with the atmosphere via the exhaust pipe 37. The blower 34 has, for example, a static pressure of 3,000 [mAq] and an air volume of 7 [m ³
/ Min] is used. Also, the blower 34
The motor 35 that drives the motor is an induction motor of three-phase 200 [V] and an output of 3.7 [kW].

The water supply valve 38 is projected from a part of the housing 2, and the other end of the water supply valve 38 is connected to the upper portion of the water removal chamber 26.
From this, water can be supplied to the lower box part D and a chemical can be injected. Further, the flexible hose 39 can be attached to the one-touch coupler 13 by one-touch. The flexible hose 39 can be moved to any place and is used for sucking the bedding 41 of the cage 40. Further, although not shown, the motor 35
An electric circuit such as a switch for stopping driving is wired.

The operation of the embodiment thus constructed will be described below. First, the large door 6 is opened, then the recovery tower door 9 is opened, and the kraft paper bag 16 is fixed to the bag mounting portion 15.
Then, the recovery tower door 9 is closed and the recovery tower door sealing handle 11 is closed.
Then, the recovery tower door 9 is pressed to close the recovery tower 3. next,
Close the large door 6. In this state, the motor 35 is rotated to operate the blower 34.

The worker uses the flexible hose 39
And hold the tip of the flexible hose 39 in the cage 4
Place it in place of 0. Then, the floor pressure 41 of the cage 40 is sucked into the recovery tower 3 through the flexible hose 39 by the negative pressure of the blower 34. At this time, large dust is collected in the kraft paper bag 16. Also,
The fine dust passes through the kraft paper bag 16 and is sent to the lower box portion B, the air pipe 20, and the intake chamber 25 of the wet dust collector 4. The dust that has entered the intake chamber 25 flows downward and passes through the throat portion 27 at high speed. At this time, the water in the scraping section 28 becomes a mist and swirls to generate a turbulent flow, so that gas-liquid mixing occurs with the air passing therethrough. Then, the dust will dissolve into the liquid. In this way, the water droplets contained in the air collide with the drainage plate 32 in the water removal chamber 26 and are captured. The air, which has almost no water content and is sterilized to remove the bad odor, is blown from the top of the water removal chamber 26 through the air pipe 22 to the blower 34 of the blower device 5.
Is sucked into. From the discharge port of the blower 34 to the discharge pipe 3
It is released to the atmosphere via 7.

The advantages of the above-described embodiment will be described below. FIG. 5: is the figure which showed the result of having compared the dust amount by the processing operation of the above-mentioned bedding treatment apparatus 1, and the dust amount by the processing operation of the conventional method. In FIG. 5, the horizontal axis represents time [minutes] and the vertical axis represents dust amount [/ liter]. The dust amount is a value obtained by continuously measuring a particle size of 0.5 [μm] or more for 10 minutes at a position 1.2 [m] above the floor and taking the value. Actually, the measurement time was 1 hour continuously, but there was no significant change after 10 minutes, so the measured value up to 10 minutes was shown.

The dust collection work is completed in 3 minutes for both the conventional method of scraping off the bedding 41 with a spatula and the method of collecting with the bedding processing apparatus 1 of this embodiment. According to the conventional method,
As can be seen from the curve V in FIG. 5, the dust increases sharply from the start of the work, and becomes maximum around 3 minutes. It can be seen that this maximum value reaches about 10 times the start of work. After that, it decreased sharply, and after 5 minutes it was about twice as much as when the work started.

On the other hand, according to the bedding treatment apparatus 1 of the present embodiment, as can be seen from the curve W in FIG. 5, a slight increase in the dust amount is recognized with the start of the work, but it is as sharp as in the conventional method. No increase was observed. Although not shown,
It was found that when the bedding treatment was performed using the bedding treatment apparatus 1 of this example, the number of falling bacteria was about 100 times smaller than that of the conventional method. Further, although not shown, when the bedding treatment is performed using the bedding treatment apparatus 1 of this embodiment, the ammonia concentration of the conventional method is 6 to 8 [p].
pm], in the present embodiment, 1 [pp
m]. Therefore, it is possible to almost completely eliminate the malodor caused by ammonia contained in the manure.

In addition, with the bedding processing apparatus 1 of this embodiment, the work time required for collecting the kraft paper bag 16 in a tightly packed state is about 6 minutes, which is about 1 time compared with the work time of the conventional method. Work can be done about 5 times faster. Thus, according to the bedding processing apparatus 1 of the present embodiment,
It has a powerful and excellent dust collection capability, high work efficiency, and is effective as a biohazard countermeasure. Further, according to the bedding processing apparatus 1, there is an advantage that no bad odor is emitted and the maintenance cost is low.

In the above embodiment, the one-touch coupler 13 is used instead of the flexible hose 39, for example, 2
It is also possible to connect and use a flexible hose of 0 [m]. Even in this case, the suction force of this embodiment hardly changes. Also, after taking out the kraft paper bag from which the bedding was collected, the inside of the collection tower can be washed,
Further, by supplying water from the water supply valve 38, the lower box part D can be washed. Then, when the inside of the recovery tower 3 is washed, the cleaning water can be recovered by opening the valve 21 of the recovery tower drain 19. Similarly, when exchanging the liquid stored in the lower box part D, the liquid stored in the lower box part D can be recovered by opening the valve 24 of the drain pipe 23.

In the above embodiment, the recovery tower 3, the wet dust collector 4, and the blower device 5 are integrally formed. However, the blower device 5 is provided separately, and the recovery tower 3 and the wet dust collector 4 are provided in the cage 40. It may be arranged in the vicinity and only the blower device 5a may be arranged on the rooftop or the like. Alternatively, a powerful blower device 5b may be arranged on the rooftop or the like, a plurality of devices in which the recovery tower 3 and the wet dust collector 4 are integrated may be provided, and the exhaust of these devices may be exhausted by one blower device 5b.

[0020]

As described above, according to the present invention, the recovery tower, the wet dust collector, and the blower device are provided, so that the following effects can be obtained. (1) It has a strong dust collecting power. (2) Since it consists of two stages, a kraft paper bag and a wet dust collector, it has an excellent dustproof effect. (3) Since the bedding in the cage is absorbed by the flexible hose, high work efficiency can be achieved. (4) Since the dust is reliably captured by the wet dust collector,
It is an odorless exhaust. (5) Since the used kraft paper bag can be used as the kraft paper bag, the maintenance cost is low. (6) Since the bedding can be sucked by the flexible hose and the dust can be reliably captured by the wet dust collector, excellent occupational health and safety and microbial contamination countermeasures can be taken. (7) The malodor caused by ammonia contained in manure can be almost completely removed. (8) A combination according to the arrangement is possible.

[Brief description of drawings]

FIG. 1 is a front view showing an internal arrangement relationship of an embodiment of a bedding processing apparatus of the present invention.

FIG. 2 is a side view showing an internal arrangement relationship of the embodiment of the present invention.

FIG. 3 is a plan view showing the internal arrangement relationship of the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an outline of an embodiment of the present invention.

FIG. 5 is a characteristic diagram showing a reduction in the amount of dust that can be realized in the embodiment of the present invention together with a conventional method.

[Explanation of symbols]

 1 bedding treatment device 2 housing 3 recovery tower 4 wet dust collector 5 blower device 12 suction pipe 13 one-touch coupler 14 filter mounting bracket 15 bag mounting part 25 intake chamber 26 drainage chamber 27 throat part 28 scraping part 32 drainer plate 34 blower 35 Motor 39 Flexible Hose 40 Cage 41 Floor Cover A Upper Box Part B Lower Box Part C Upper Box Part D Lower Box Part

Claims (3)

[Claims] 1. A bedding treatment apparatus capable of sucking a bedding in a cage together with air so that large dust inside the bedding sucked together with air can be collected in a removable paper bag. And a wet dust collector that captures dust by passing air containing small dust that could not be captured by the recovery column through a liquid. 2. The recovery tower is provided with a recovery tower door in an upper box part, the inside of the upper box part is partitioned by a filter mounting bracket, and the filter mounting bracket is provided with a bag mounting part, and the bag mounting part is provided with kraft paper. The bedding processing apparatus according to claim 1, wherein the bag making device is attached and detached. 3. In the wet dust collector, the upper box part is separated into an intake chamber and a water removal chamber, the lower box part stores liquid, and a throat part is provided at the lower end of the intake chamber, and the throat part is provided downstream of the throat part. The bedding apparatus according to claim 1, wherein a scraping portion is provided on the side and draining plates are provided alternately in the water removing chamber.