JP4427100B2 - Rotating shutter for barn and barn with the same - Google Patents

Description

  The present invention relates to a rotary shutter for a barn, and more particularly to a rotary shutter for a barn installed in a barn.

  In general, solids such as livestock excrement and bedding have high fertilizer value, so they may be applied directly to farmland without any special treatment. However, drying and composting are widely performed from the standpoint of handling and safety. ing. Conventionally, livestock manure, especially chicken manure, has been treated by placing it in an outdoor treatment tank and fermenting it, or by allowing the fermented chicken manure to be sun-dried or heat-dried, or directly to sun or heat without fermenting. A method of drying was adopted.

  However, a very bad odor associated with the feces treatment may cause a deterioration of the working environment and may adversely affect the surrounding living environment. Furthermore, chicken manure which is not dried only by fermentation contains water and is unwieldy. Moreover, in the case of sun drying, not only a wide drying space is required, but odorous dust and the like are scattered to cause pollution. In addition, in the case of thermal drying, there is a problem that a large equipment cost is required.

  In response to the above problems, a method for efficiently performing manure treatment without requiring large-scale facilities has been developed (Patent Document 1). The barn 100 shown in FIG. 4 is partitioned by partition walls on both left and right sides, a chicken manure processing chamber 101 in the center, and a chicken house 102 in each of the left and right sides. Chickens are bred in the poultry house 102, and the resulting chicken droppings 107 are transported to the chicken dropping processing chamber 101 and deposited.

  An intake hole 104 is formed in the outer wall of the poultry house 102. Further, a discharge hole 105 is formed in the partition wall with the chicken manure processing chamber 101, and a discharge fan 106 corresponding to the discharge hole 105 is attached. When the discharge fan 106 is rotated, the inside of the poultry house 102 becomes negative pressure, and the outside air enters from the intake hole 104. The entered outside air is warmed in the barn 102, further sucked into the exhaust fan 106, and exhausted to the chicken manure processing chamber 101 through the exhaust hole 105. With this warm air, the chicken dung volume in the chicken manure processing chamber 101 can be fermented and dried.

However, when the chicken manure is transported to the chicken manure processing chamber 101, if the chicken house 102 in a negative pressure state is opened, outside air is blown from the opening, and there is a problem that dust such as feed powder, chicken manure, and feathers in the chicken house 102 rises. . Thereby, it is difficult for the operator to work, and there is a possibility that dust is scattered outside the poultry house 102 and causes pollution.
JP-A-6-153734

  The present invention has been made to solve the conventional problems. An important object of the present invention is to provide a rotary shutter for livestock barn that can collect livestock excrement without scattering the dust in the barn, and a barn equipped with the same.

In order to achieve the above object, the first rotary shutter for a barn according to the present invention is a rotary shutter 1 for a barn installed in the vicinity of the interfaces of a plurality of space areas having different atmospheric pressures in the barn 20. A plurality of openings 14 having a substantially cylindrical hollow portion inside and part of a side surface formed of a circular arc surface of the cylinder and opened in a direction orthogonal to the center of the cylinder, From the fixed frame body 10 to be communicated, the elastic sheet 16 provided on the cavity portion side of the fixed frame body 10, the rotation shaft 12 that is coaxial with the center axis of the fixed frame body 10 and is rotatable, and the rotation shaft 12 And a plurality of rotor blades 13 protruding substantially radially and capable of separating the plurality of openings 14 from each other. The inner diameter of the elastic sheet 16 is substantially smaller than the outer diameter of the rotating body formed by the rotor blades 13. Further, as the rotary shaft 12 rotates, the rotary blade 13 can rotate while sliding on the inner wall surface of the fixed frame 10 while elastically deforming the elastic sheet 16 , and the rotary blade 13 is in any rotational position. The plurality of openings 14 are always separated without being penetrated by the rotary blade 13, and it is possible to make a desired substance come and go while maintaining a separated state without communicating with a plurality of space areas having different atmospheric pressures. It is characterized by being.

  In the second shutter for a barn of the present invention, the radiation angles of the plurality of rotary blades 13 are substantially equal, and the radiation angle is equal to or less than the center angle formed by the continuous side surface of the cylinder and the center of the cylinder. It is characterized by being.

Furthermore, the barn equipped with the third shutter for the barn of the present invention is a barn 20 having a partition wall 21 that divides a plurality of space areas having different atmospheric pressures, and the partition wall 21 has a substantially cylindrical shape inside. A fixed frame 10 having a plurality of openings 14 having a hollow portion and being a part of a side surface formed of a circular arc surface of a cylinder and opened in a direction orthogonal to the center of the cylinder, each communicating with each space region. And an elastic sheet 16 provided on the cavity side of the fixed frame body 10, a rotating shaft 12 that is coaxial with the central axis of the fixed frame body 10 and is rotatable, and a plurality of substantially projecting radial shapes from the rotating shaft 12. A rotary shutter 1 for a livestock barn having a rotary blade 13 capable of isolating the openings 14 is installed. The inner diameter of the elastic sheet 16 is substantially smaller than the outer diameter of the rotating body formed by the rotor blades 13. Further, as the rotary shaft 12 rotates, the rotary blade 13 can rotate while sliding on the inner wall surface of the fixed frame 10 while elastically deforming the elastic sheet 16 , and the rotary blade 13 is in any rotational position. The plurality of openings 14 are always isolated without being communicated with each other by the rotary blade 13, and it is possible to make a desired substance come and go while maintaining a separated state without communicating with a plurality of space areas having different atmospheric pressures. It is characterized by being.

  Furthermore, the barn equipped with the fourth barn rotary shutter according to the present invention includes a rearing room 22 for rearing livestock, and a pit section 23 that is partitioned by the floor of the rearing room 22 to collect livestock excrement. The rotary shutter 1 for barns is installed on the floor. The breeding room 22 includes an intake hole 7 through which outside air is sucked and a pressure type ventilation fan 6 that exhausts the outside of the breeding room 22. The breeding room 22 becomes negative pressure due to the operation of the pressure type ventilation fan 6, and the pit portion 23 has a structure that produces a pressure difference. Moreover, the excrement of livestock in the breeding room 22 can be moved to the pit part 23 while keeping the isolated state without the breeding room 22 and the pit part 23 communicating with each other.

  According to the first and second inventions, a desired substance recovered from a certain opening into the compartment of the fixed frame body is transported to the adjacent opening while maintaining the isolated state between the openings. be able to. Therefore, it is possible to avoid scattering of a desired substance due to communication between interfaces having different atmospheric pressures.

  According to the third and fourth inventions, it is possible to isolate a plurality of space areas having different atmospheric pressures without communicating with each other, and to make a desired substance come and go while maintaining the atmospheric pressure difference. In particular, the excrement of livestock collected in the breeding room can be transported to the pit part without generating an air current between the breeding room and the pit part in the barn where the atmospheric pressure is different. Therefore, the wind caused by the air current does not blow up dust such as excrement and can prevent environmental pollution outside the barn.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a rotary shutter for a barn and a barn equipped with the same for embodying the technical idea of the present invention, and the present invention is a rotary shutter for a barn. And the barn with this is not specified as follows. Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the embodiments are indicated in “Claims” and “Means for Solving the Problems”. It is appended to the members shown. However, the members shown in the claims are not limited to the members in the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in the embodiments are not intended to limit the scope of the present invention unless otherwise specified, but are merely described. It's just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.

(Rotary shutter for barns)
The rotary shutter for barns according to the first embodiment is installed in the vicinity of the interfaces of a plurality of space areas having different atmospheric pressures. The top view of this rotary shutter 1 for barns is shown in FIG. The barn rotary shutter 1 has a substantially cylindrical fixed frame 10 assembled so as to substantially face a frame 11 having an arcuate curved surface, and a predetermined interval is provided between the frames 11. The opening 14 is disposed at a distance. In addition, the fixed frame 10 has side plates 9 that are closed outward at both ends in the longitudinal direction of the frame 11 (front side or back direction in FIG. 1). That is, the fixed frame 10 has a cylindrical hollow portion inside thereof, and a plurality of openings 14 opened in a direction orthogonal to the center of the cylinder at a part of the side surface formed by the circular arc surface of the cylinder. Is provided. Further, the opening 14 communicates with each space area having different atmospheric pressures.

  The curved surface of the frame 11 can be formed into an arcuate surface by curving a single plate. In the frame 11 of the first embodiment, a plurality of plates 15 are connected to each other at a predetermined angle to form a relatively arcuate curved surface. With this method, it is possible to cope with curved surfaces having various areas and bends by adjusting the number of plates 15 and the connecting angle. Further, an elastic sheet 16 made of polypropylene or the like having elasticity is coated on the curved surface of the frame 11 so as to substantially follow the curved surface. In the first embodiment, the elastic sheet 16 is stretched to the cavity portion side in the fixed frame 10 with the elastic sheet 16 and the plate 15 being separated from each other. For example, both ends of the elastic sheet 16 are fixed on the opening 14 side of the frame 11 with a fastener such as a screw. At this time, the elastic sheet 16 is curved in an arc shape, and the inner diameter of the arc shape is slightly smaller than the outer diameter of the rotating body formed by the rotary blades 13 described later. Thereby, when the rotary blade 13 rotates, the tip of the rotary blade 13 presses and elastically deforms the elastic sheet 16 so that the rotary blade 13 can be rotated in a close contact state, and between the rotary blade 13 and the elastic sheet 16. Eliminate gaps and prevent air leaks. Furthermore, an edge is formed at the tip of the rotary blade 13 and the effect of rowing off foreign matter adhering to the elastic sheet 16, such as dried chicken dung, can also be obtained.

  Further, the barn rotary shutter 1 has a rotation shaft 12 that coincides with the central axis of the fixed frame 10. The rotary shaft 12 is rotationally driven by a motor 8 having one end connected by a connecting means 2 such as a chain, and can rotate in one rotational direction with respect to the fixed frame body 10. In the first embodiment, the rotation is made clockwise (in the direction of the arrow shown in FIG. 1), but the same effect can be obtained by reverse rotation.

  Further, a plurality of rotating blades 13 are radially projected from the rotatable rotating shaft 12 and connected to the opening 14 or the frame 11 side of the fixed frame body 10. Can be partitioned into multiple compartments. The rotary blade 13 has a shape that can substantially block the gap between the rotary shaft 12 and the inner wall of the fixed frame 10, that is, the arc surface of the frame 11 and the side plate 9, and is linked to the rotation of the rotary shaft 12. Rotate along 10 inner walls. Therefore, the section partitioned by the adjacent rotor blade 13 and the inner wall surface of the fixed frame 10 can be almost closed, but the section rotates in conjunction with the rotation of the rotor blade 13, and the section is at least the opening 14. When it is communicated with a part of the door, it is opened outward. Further, during the rotation, the radiation angle of the adjacent rotor blades 13 is maintained, and the rotor blades 13 are always located between both openings 14. In other words, the openings 14 are separated from each other by the rotating blades 13 regardless of the rotation position of the rotating blades 13, and air having different pressures communicating with the respective opening portions 14 can be prevented from flowing into and out of each other. .

  In addition, the number of blades 13 and the radiation angle are related to the sizes of the opening 14 and the frame 11 described above, and thus are determined in consideration of both. For example, the radiation angle of the adjacent rotor blades 13 around the rotation axis 12 is set to be equal to or less than the center angle of the arc constituting the smallest frame 11. Thereby, between the opening parts 14 can always be isolated. Further, if the sizes of the opening 14 and the frame 11 are the same, the capacity of each section in the fixed frame 10 becomes equal, and the desired transport material entering here can be rotated almost evenly. Can be reduced.

  Specifically, the fixed frame 10 of the first embodiment is provided with two openings 14 of the same size facing each other, and the arcs constituting the frame 11 and the openings 14 have the same length. That is, the center angle formed by the center of the fixed frame 10 and each arc is equal. Further, the four rotating blades 13 are connected radially from the rotatable rotating shaft 12 at equal angular intervals, and divide the inside of the fixed frame 10 into four equal parts.

(Barn)
The rotary shutter 1 for barns is used as follows. FIG. 2 is a plan view of the barn 20 including the barn rotary shutter 1. The barn 20 has a two-story structure with a raised floor, and includes a second-floor breeding room 22 where livestock such as chickens are raised, and a first-pit pit portion 23 where livestock excrement, particularly feces, is collected. Have. The upper and lower layers are separated by a partition wall 21, that is, a floor of the breeding room 22. Ventilation performance is improved by adopting such a high-floor structure, and it becomes a summer countermeasure against high temperature and humidity, and the livestock rearing environment is improved. In addition, the feces collected in the pit section 23 on the first floor can be dried and fermented by natural ventilation to produce organic fertilizer.

  By the way, the barn 20 can be a house without a window. As a result, excrement in the barn 20 and dust such as feathers do not scatter outside the barn. Furthermore, light management and environmental control are facilitated. In such a windless type barn, it is important to construct a ventilation system, and forced exhaust with a defined air flow is performed. For example, there are positive pressure ventilation and negative pressure ventilation as ventilation methods that can determine the flow of air in a barn in one direction and limit the exhaust direction. Positive pressure ventilation is a ventilation method that uses a pressure-type blower to blow air into the barn to make the inside of the barn positive and discharge the air inside the barn from the exhaust port due to a pressure difference from the outside of the barn. Negative pressure ventilation is a ventilation method in which air inside the house is exhausted outside the house by a pressure-type ventilation fan, and fresh air is sucked from the intake port by making the inside of the house negative pressure. In both cases, in order to increase the ventilation effect, it is important that the barn has a sealed structure. The position of the ventilation fan (exhaust hole) and the position of the intake hole determine the air flow in the building.

  In the breeding room 22 of the first embodiment, a negative pressure ventilation method is adopted, and a suction hole 7 communicating with the outside of the barn 20 is installed on the wall surface of the breeding room 22, and a predetermined position isolated from the suction hole 7. A pressure type ventilation fan 6 is provided. That is, when the pressure-type ventilation fan 6 is operated, the breeding room 22 has a negative pressure and a pressure difference with the pit portion 23 is generated.

  The livestock rotary shutter is installed in the vicinity of the interfaces of a plurality of space areas having a pressure difference so that each opening of the livestock rotary shutter communicates with each space area. As shown in FIG. 2, the two openings 14 of the rotary shutter 1 for a barn according to the first embodiment are positioned facing each other in the vertical direction. For the sake of convenience, these openings are designated as an upper opening 14a and a lower opening 14b. The rotary shutter 1 for the barn is arranged so that the upper opening 14 a communicates with the breeding room 22 of the barn 20 and the lower opening 14 b communicates with the pit part 23.

  Further, the breeding room 22 is provided with a plurality of rows of cages 5 capable of storing a large number of chickens stacked in a plurality of stages. Below each row of the cage 5, for example, a ventilation duct is provided to receive livestock excrement. The excrement dried in the duct, particularly feces, is reduced in odor and easy to handle. The dried feces are collected at a predetermined position by the transport device 4 such as a belt conveyor, and further, the rotary shutter for the barn through the upper opening 14a of the rotary shutter 1 for the barn that is opened to the breeding room 22 side. It is transported in 1.

  FIG. 3 is an enlarged plan view of the main part of the barn 20 for explaining the movement path of the feces 3 transported in the rotary shutter 1 for barn. As shown in FIG. 3 (a), the feces 3 that have entered the first section B where the rotary blades 13 are located from the upper opening 14a of the rotary shutter 1 for livestock barn are guided to the rotary blades 13 that rotate clockwise as indicated by arrows. Then, it moves to the position shown in FIG. Furthermore, as shown in FIG. 3C, the first blade B communicates with the pit part 23 through the lower opening 14 b and the feces 3 are discharged to the pit part 23 by rotating the rotor blade 13.

  In the case of the rotary shutter 1 for a barn with the above structure, the upper opening 14a and the lower opening 14b are always isolated by the rotary blades 13, so that air having different atmospheric pressures flow into and out of each other. Feces can be transported to another room. That is, the dust generated from the dung of livestock and feathers does not soar in the breeding room 22 due to the wind generated by the pressure difference, so that the operation is easy and the dust is not discharged outside the house.

  The material of the rotary shutter 1 for a barn is not particularly limited, but a material having corrosion resistance such as plastic is particularly preferable at a place where feces adhere. Although not shown, a spatula having elasticity, for example, a spatula made of rubber, polyethylene, or the like, can be connected to the vicinity of the peripheral edge of the rotary blade 13 that contacts the inner wall surface of the fixed frame 10. With this spatula, the degree of adhesion between the rotary blade 13 and the fixed frame 10 is increased, and the communication between the openings 14 can be reliably isolated. Moreover, when dung that is insufficiently dried or has absorbed moisture adheres to the fixed frame 10, a spatula that rotates with the rotation of the rotary blade 13 is edged at the tip of the spatula so that it can be removed. Is preferably provided.

  Moreover, it is preferable that the rotary blade 13 is removable from the livestock rotary shutter 1. As a result, when it becomes dirty, it can be cleaned and maintenance becomes easy. The operating time of the livestock rotary shutter 1 is not particularly limited. For example, the transporting device 4 (see FIG. 2) can be operated only when a predetermined amount of feces is accumulated via a sensor, and the livestock rotary shutter 1 can be operated in conjunction with this. Moreover, although the chicken was mentioned as an example as a livestock, the kind is not specifically limited, The excrement similarly fermented and dried is not restricted to a chicken dung.

The barn rotary shutter and the barn equipped with the same of the present invention can be suitably applied to chicken manure-like chicken manure treatment.

1 is a plan view of a rotary shutter for a barn according to Example 1. FIG. 1 is a plan view of a barn according to Example 1. FIG. 1 is an enlarged plan view of a main part of a barn according to Example 1. FIG. It is sectional drawing of the livestock barn concerning a prior art example.

DESCRIPTION OF SYMBOLS 1 ... Rotary shutter for barns 2 ... Connection means 3 ... Feces 4 ... Transport device 5 ... Cage 6 ... Pressure type ventilation fan 7 ... Intake hole 8 ... Motor 9 ... Side plate 10 ... Fixed frame 11 ... Frame 12 ... Rotating shaft 13 ... Rotating blade 14 ... Opening part 14a ... Upper opening part 14b ... Lower opening part 15 ... Plate 16 ... Elastic sheet 20 ... Livestock barn 21 ... Partition wall 22 ... Raising room 23 ... Pit part 100 ... Livestock barn 101 ... Fowl manure processing room 102 ... Fowl barn 103 ... Cage 104 ... Intake hole 105 ... Exhaust hole 106 ... Fan 107 ... Chicken droppings B ... First section

Claims (4)

A rotary shutter (1) for a barn installed in the vicinity of the interface of a plurality of space areas with different atmospheric pressures in the barn (20),
A plurality of openings (14) having a substantially cylindrical cavity inside and part of a side surface formed by the circular arc surface of the cylinder and opened in a direction perpendicular to the center of the cylinder, A fixed frame (10) each communicating with the space area;
An elastic sheet (16) provided on the cavity side of the fixed frame (10);
A rotating shaft (12) that is coaxial with the center axis of the fixed frame (10) and is rotatable,
A plurality of substantially radially protruding from the rotating shaft (12), the plurality of openings (14) can be separated from each other, and the rotor blade (13),
With
The inner diameter of the elastic sheet (16) is substantially smaller than the outer diameter of the rotating body formed by the rotor blade (13),
As the rotating shaft (12) rotates, the rotating blade (13) can rotate while sliding on the inner wall surface of the fixed frame (10) while elastically deforming the elastic sheet (16) ,
Regardless of the rotation position of the rotary blade (13), the rotary blade (13) is always isolated without penetrating the plurality of openings (14),
A rotary shutter for a livestock barn, wherein a desired substance can be made to come and go while maintaining a separated state without communicating between a plurality of space areas having different atmospheric pressures. A rotary shutter (1) for a barn according to claim 1,
The radiation angles of the plurality of rotor blades (13) are substantially equal,
The radiating angle is equal to or less than a central angle formed by a continuous side surface of the cylinder and a center of the cylinder, and the rotary shutter for a livestock barn is characterized in that: A barn (20) having a partition wall (21) separating a plurality of space areas with different atmospheric pressures,
In the partition wall (21),
A plurality of openings (14) having a substantially cylindrical cavity inside and part of a side surface formed by the circular arc surface of the cylinder and opened in a direction perpendicular to the center of the cylinder, A fixed frame (10) each communicating with the space area;
An elastic sheet (16) provided on the cavity side of the fixed frame (10);
A rotating shaft (12) that is coaxial with the center axis of the fixed frame (10) and is rotatable,
A plurality of substantially radially protruding from the rotating shaft (12), the plurality of openings (14) can be separated from each other, and the rotor blade (13),
A rotating shutter (1) for barns equipped with
The inner diameter of the elastic sheet (16) is substantially smaller than the outer diameter of the rotating body formed by the rotor blade (13),
As the rotating shaft (12) rotates, the rotating blade (13) can rotate while sliding on the inner wall surface of the fixed frame (10) while elastically deforming the elastic sheet (16) ,
Regardless of the rotation position of the rotary blade (13), the rotary blade (13) is not always communicated between the plurality of openings (14), and is isolated,
A barn equipped with a rotary shutter (1) for a barn, wherein a desired substance can be made to come and go while keeping a plurality of spatial regions with different atmospheric pressures in an isolated state without communicating with each other. A barn (20) according to claim 3,
The barn (20)
A breeding room (22) for raising livestock,
A pit section (23) that is partitioned by the floor of the breeding room (22) and collects livestock excreta,
The barn rotary shutter (1) is installed on the floor,
The breeding room (22) includes an intake hole (7) through which outside air is sucked, and a pressure-type ventilation fan (6) for exhausting outside the breeding room (22),
The breeding room (22) becomes a negative pressure due to the operation of the pressure-type ventilation fan (6), and has a structure that generates a pressure difference with the pit part (23),
The excrement of livestock in the breeding room (22) can be moved to the pit part (23) while maintaining the isolation state without communication between the breeding room (22) and the pit part (23). A livestock barn equipped with a rotating shutter (1) for a barn.

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