JP2008022810A - Slide damper for storing and distributing tank for feed and method for taking out feed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide damper for storing and distributing tank for feed and to provide a method for taking out the feed, easy to take out the necessitated quantity of feed in the feed storing and distributing tank and taking out the feed from the tank without deviation of taking out position, preventing remaining of the previously stored feed in sequentially supplying the feed in the tank, preventing occurrence of a bridge phenomenon. <P>SOLUTION: The invention relates to the slide damper "A" for storing and distributing tank for feed mounted on the lower opening of the tank, comprising a damper body 1 provided with an opening 1f and a pair of shutters 3, 3 parallelly installed on the damper body 1 set to respectively slide in the same direction for freely opening and closing the opening 1f, and the method for taking out the feed comprising alternately opening of the shutter for each 1-3 times of taking out in taking out the feed in the tank. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a slide damper for a livestock feed storage tank used in a livestock feed storage tank for storing livestock feed such as cows, and a livestock in a tank using the slide damper for the livestock feed storage tank. More specifically, it is possible to easily adjust the amount of feed taken out from the livestock feed storage tank and to prevent the occurrence of uneven load on the feed in the tank. The present invention relates to a slide damper for a livestock feed storage tank that can suppress the occurrence of a bridge phenomenon and a method for taking out livestock feed.

  Cattle and other livestock feeds can be categorized into, for example, mixed mash systems with various types of feeds such as powdered mash systems, granular types, grasses, etc. . These livestock feeds are conventionally introduced into a livestock feed storage tank in which, for example, a damper provided with a shutter for opening and closing the opening is attached to the lower opening of the tank. And the feed in the tank was taken out. Examples of such a damper include a slide shutter damper, a butterfly damper, a clover damper, a bag removal damper, and the like. In the slide shutter damper, one rectangular shutter member is slidably attached to a damper opening, and the opening of the damper is opened and closed by sliding the shutter member. A butterfly damper is a damper that has a shaft at the center of a circular shutter member that is almost the same diameter as the damper opening, and the shutter member moves up and down when it is opened. Usually used for mash-type (powdered) feed Has been. A clover damper is constructed by superposing a pair of shutter members obtained by pulling out a circular shutter member having the same diameter as that of the damper opening into a clover leaf shape, and sliding one shutter member in the circumferential direction. The opening is opened and closed, the opening ratio is small, and the feed handling is said to be good in granular form with good fluidity. The bag opening damper has the same opening and closing structure as the above butterfly damper, but the outlet is narrowed so that the feed can be taken into a bag. This bag damper is different from a normal butterfly damper. Because the shutter diameter is small, even when handling mixed feed, the bite is less than that of a normal butterfly damper, but the height of the damper is longer than that of a normal butterfly damper. It is said that it is difficult to use this type of damper because it is too difficult to use because the outlet becomes too low.

  In the case where the feed is taken out from the livestock feed storage tank as described above, a farmer who uses a small amount of feed at one time adjusts the take-out amount without fully opening the shutter. However, if the amount taken out is adjusted and used every day in this way, depending on the physical properties of the feed, such as poor feed fluidity such as mixed feed, an unbalanced load may be generated in the tank. The so-called bridging phenomenon occurred in the tank, and the feed that caused the bridging phenomenon sometimes collapsed, and there was a story that the impact sound was intense and scary at that time. Further, depending on the shape of the tank, there is a problem that the tank hopper is easily damaged. Furthermore, since the feed discharge from the tank is biased, there is no problem if the feed is put into the next stage after the feed in the tank is completely discharged, but in practice, there is a little feed left on one side. In this state, the next feed is carried out, so that the remaining feed stays in the tank, which may cause mold or rot.

Conventionally, various techniques for preventing the feed from remaining in the feed tank have been proposed. For example, Patent Document 1 and the like aim to prevent the feed from remaining in the tank and efficiently discharge the feed. As a technique, a material defining the material of the tank body and the inclination of the inner wall has been proposed. In addition, for example, Patent Document 2 discloses a livestock feed storage tank for the purpose of facilitating adjustment of the amount of feed removal by realizing a smooth flow of mixed feed with solid pasture and preventing damage to the feed tank. It has been proposed to include a plurality of damper members that open the outlet hatch in a balanced manner.
Japanese Patent Laid-Open No. 11-91868 Japanese Patent Application Laid-Open No. 7-50948

  However, since the technique described in Patent Document 1 relates to the configuration of the tank body, there is a problem that it is necessary to replace the used tank itself. In addition, in the case of the tank described in Patent Document 1, the shutter is configured by mounting the above-described one slide shutter at an angle, and therefore, it must be pulled out obliquely when being pulled out. It may be difficult to perform the operation, and if the removal amount is adjusted every day as described above, the position closed by the shutter of the opening will always be the same, so the inside of the tank The feed at a predetermined position tends to remain, and the problem of uneven feed discharge occurs. On the other hand, in the case of the technique described in Patent Document 2, since the opening of the extraction port hatch is opened with a good balance, if the extraction amount is adjusted every day as described above, Patent Document 1 As in the case of, there arises a problem that the position of the opening closed by the damper member is always the same. Further, in the case of Patent Document 2, a special configuration and device for opening the outlet hatch in a balanced manner by a plurality of damper members are required.

  Therefore, there is no such problem, the necessary amount of feed in the livestock feed storage tank can be easily taken out, and even if the takeout amount is adjusted every day, the technology that makes it difficult for uneven distribution of residual feed to occur in the tank Development of was desired.

  The present invention has been made in view of the above circumstances, and can easily take out a necessary amount of feed from a livestock feed storage tank. For example, even if the amount of feed is adjusted every day, the tank Suppresses the occurrence of unbalanced load on the feed inside the tank, preventing feed from remaining from the previous feed even if the feed is fed into the tank one after another, and also prevents the occurrence of bridging It is an object of the present invention to provide a slide damper for a livestock feed storage tank that can be used and a method for taking out livestock feed.

  In order to achieve the above object, the present invention is (1) a damper attached to a lower opening of a livestock feed storage tank, the damper main body having an opening, and the damper main body sliding in the same direction. And a slide damper for a livestock feed storage tank comprising a plurality of shutter members attached in parallel or substantially in parallel and capable of opening and closing the opening, and (2) in the livestock feed storage tank When taking out feed, the said shutter member of the slide damper for livestock feed storage tanks of said (1) is changed and opened every 1 to 3 times, and the feed in a tank is supplied, It is characterized by the above-mentioned. A method for removing livestock feed is provided.

  Here, in the slide damper for a livestock feed storage tank according to the present invention, the shutter member is a pair of shutter members having the same shape or substantially the same shape, and each of the shutter members is slidably attached to the damper body. Is preferred. Further, the damper main body includes a supporting member for slidably attaching the shutter member, and a side wall guide portion provided so that the supporting member opposes both sides of the opening portion, and the opening portion. And an intermediate guide portion provided so as to face the side wall guide portion, and each guide portion includes a sliding member, and the shutter member is slidable between adjacent guide portions. It is more preferable that it is attached so as to be held by the. Still further, each of the side wall guides includes the sliding member on the leading end side in the drawing direction of the shutter member, and the support member further includes a bottom surface guide part below the side wall guides, The shutter member includes a sliding member so that the upper surface of the bottom surface guide portion can be slid on the rear end side of the shutter member in the pulling direction, and further includes a pin member, It is further preferable that a pin hole is formed on the distal end side of the support member in the pull-out direction of the shutter member.

  A slide damper for a livestock feed storage tank according to the present invention is mounted in parallel or substantially in parallel so as to slide in the same direction to a damper main body having an opening, and the opening can be freely opened and closed. Since it is provided with a plurality of shutter members, for example, if one shutter member is opened at the time of feed supply, one shutter opening (opening area) is reduced, and one time in the livestock feed storage tank It is easy to reduce the amount of feed supplied per hit. In this way, when feed is supplied with a small opening area, for example, if the slide damper has two shutter members attached to the damper body, for example, on the right side of the even day, It is possible to prevent the feed in the tank from being taken out from a biased position by deciding the shutter member as the left shutter member for odd days and by opening the two shutter members alternately left and right. Can prevent the occurrence of unbalanced load on the feed inside, prevent feed from remaining even if feed is sequentially fed into the tank, and prevent the occurrence of bridging It becomes possible to do. In addition, when it is difficult to discharge the feed in the tank due to compaction at the time of feeding the feed, for example, if all or most of the shutter members are fully opened, the opening area of the damper is increased when feeding the feed in the livestock feed storage tank It can also be used in a larger size. In addition, as described above, even if the shutter member is alternately fully opened and the feed in the tank is discharged, for example, due to the tank shape, material, feed physical properties, etc., the feed is likely to adhere to the tank inner wall, Although it may be difficult to take out the feed attached to the inner wall, in such a case, the slide damper for the livestock feed storage tank of the present invention can slide a plurality of shutter members independently. The operation is easier than conventional ones. For example, even if you go up on the tank and stir the inside of the tank or drop the feed adhering to the inner wall, for example, lightly push and pull the shutter member to fully open Further, the feed attached to the inner wall of the tank can be easily discharged.

  Here, the slide damper for a livestock feed storage and distribution tank of the present invention is provided with a plurality of shutter members, and the number of shutter members can be, for example, three or more. In consideration of the above, it is more preferable that a pair of shutter members having the same shape or substantially the same shape is attached to the damper body in parallel or substantially in parallel so as to be slidable in the same direction. For example, when adjusting the amount of feed taken out by alternately opening and closing these shutter members, the opening area of the opening of the damper main body is the same or almost the same every time. It becomes easy to adjust the amount to be taken out.

  Further, in the slide damper for a livestock feed storage tank according to the present invention, the damper main body includes a support member to which the shutter member is slidably attached, and the support member faces the vicinity of both sides of the opening. Each of the guide portions includes a side wall guide portion provided, and an intermediate guide portion provided so as to straddle the opening portion and face the side wall guide portion. If the shutter member is mounted so as to be slidably held between the guide portions, for example, a slide damper to which a pair of left and right shutter members are attached as described above, the damper as the intermediate guide portion It is equipped with an intermediate guide provided so as to straddle the center or almost the center of the opening of the main body and face the side wall guide. One shutter member is slidably held between the side wall guide part and the intermediate guide part, and the other shutter member is slidably held between the intermediate guide part and the other side wall guide part. With such a slide damper, the two shutter members are sandwiched between the side wall guide part and the intermediate guide part, and each shutter member is placed between the side wall guide part and the intermediate part. Pull out between the guides along these guides, and if the opening of the damper body is in a state where only one shutter member is fully open, it is in a semicircular shape, and both shutter members are in the fully open state Thus, the opening of the damper main body can be completely opened, and when each shutter member is housed in the support member, the side wall guide portion and the intermediate guide portion respectively. Between it can be pushed back along these guide.

  Further, each of the side wall guide portions includes the sliding member on the distal end side in the drawing direction of the shutter member, the support member further includes a bottom surface guide portion on the lower side of the side wall guide portions, If the shutter member has a sliding member on the rear end side of the shutter member in the pull-out direction so that the upper surface of the bottom surface guide portion can slide, the side wall guide portion and the intermediate guide portion When the shutter member attached therebetween is fully opened, the sliding member of the bottom surface guide portion is locked to the sliding member provided on the distal end side of the side wall guide portion. It can also have a function as a stopper to prevent falling off. Moreover, if the slide damper for livestock feed storage and delivery tanks of the present invention is provided with a pin member and has a hole for a pin formed in the leading end side in the pulling direction of the shutter member of the support member, the shutter member is supported by the support member. When the pin member is inserted into the pin hole when it is housed in the closed state, it has a function as a stopper when the shutter member is closed, and when the shutter member is closed, for example, a cow It is possible to prevent a situation in which the shutter member is pulled out by livestock.

  Further, the method for taking out the livestock feed of the present invention is to replace the shutter plate of the slide damper for the livestock feed storage tank of the present invention every 1 to 3 times when taking out the feed from the livestock feed storage tank. For example, as described above, if a pair of shutter members are attached, the two shutter members are alternated every 1 to 3 times. Since the feed in the tank is supplied, the semicircular part of the opening of the damper main body is completely opened each time. For example, the shutter member at the opening of the damper main body is opened as in the conventional case. It is possible to prevent a situation where the feed discharge location is biased due to opening and closing, and it is possible to prevent the feed in the tank from being taken out from the biased position.

  According to the present invention, it is easy to take out a necessary amount of feed in a livestock feed storage tank, and at that time, feed in the tank can be prevented from being taken out from a biased position. Even if the feed is sequentially supplied to the food, it is possible to suppress the occurrence of a situation in which the previous feed remains, and it is also possible to prevent the bridge phenomenon from occurring.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIGS. 1 to 3 illustrate an example of a structure of a slide damper for a livestock feed storage tank according to the present invention. FIG. 1 illustrates a slide damper A for a livestock feed storage tank from which one shutter member is pulled out. FIG. 2 is a schematic bottom view of the slide damper A for a livestock feed storage tank with one shutter member removed, and FIG. 3 is a slide damper for the livestock feed storage tank. It is a schematic perspective view which shows the state which looked up at a part of livestock feed storage tank attached with A from the downward direction.

  The livestock feed storage tank slide damper A is attached to a lower opening (not shown) of the livestock feed storage tank B (see FIG. 3), and includes a damper body 1, a support member 2 attached to the damper body 1, A pair of shutter members 3 and 3 attached to the damper main body 1 by the support member 2 are provided. The damper main body 1 includes a flange portion 1c provided in a flange shape at the peripheral edge portion of the upper opening 1b of the inclined wall portion 1a inclined in a tapered shape, and a plurality of fixing holes 1d drilled in the flange portion 1c. Can be attached to the lower opening (not shown) of the livestock feed storage tank B (see FIG. 3). And the discharge port 1e is provided in the lower part of the inclined wall part 1a, and the lower opening part 1f is formed.

  The support member 2 is a member having a substantially quadrangular planar shape in which an opening having the same shape as the lower opening 1f of the damper main body 1 is formed, and feed material from the lower opening 1f is discharged to the discharge port 1e of the damper main body 1. It is installed so as not to disturb the discharge. The support member 2 includes a rear wall 2a (see FIGS. 2 and 3) on the rear end side of the shutter member in the pulling direction (arrow C in FIGS. 1 and 2), and a shutter member pulling direction (in FIGS. 1 and 2). Side wall guides 2b and 2b are formed so as to pass through the vicinity of the peripheral edge of the lower opening 1f along the arrow C), except for the front of the shutter member in the drawing direction (arrow C in FIGS. 1 and 2), The three sides are almost surrounded by the lower wall (as attached to the damper). Further, bottom guide portions 2c and 2c (see FIGS. 2 and 3) are provided on the lower sides of the side wall guide portions 2b and 2b toward the lower opening portion 1f, and feed is discharged from the discharge port 1e (lower opening portion 1f). Each is provided so as not to disturb. Accordingly, the both end portions of the support member 2 in the direction in which the shutter member is pulled out (arrow C in FIGS. 1 and 2) are substantially end surfaces when viewed from the front in the direction in which the shutter member is pulled out (arrow C in FIGS. 1 and 2). A U-shape and a substantially inverted U-shape (see FIG. 3). And between the side wall guide parts 2b and 2b, the intermediate guide part 2d is provided in parallel with the side wall guide parts 2b and 2b. Therefore, the intermediate guide portion 2d is provided so as to face the side wall guide portions 2b and 2b across the center or substantially the center of the lower opening 1f of the damper main body 1, more preferably the center.

  On the inner side (opening 1f side) of the side wall guide portions 2b and 2b, sliding members 4 and 4 such as bearings (see FIG. 2) are provided on the leading end side in the shutter member drawing direction (arrow C in FIGS. 1 and 2). ) Are attached by fixing members 5 and 5 such as bolts and nuts (see FIG. 2). The intermediate guide portion 2d has sliding members 4, 4, 4, 4 such as bearings on a plurality of locations (three locations in the figure) and on both surfaces (one side wall guide portion 2b side and the other side wall guide portion 2b side). 4, 4, 4 (see FIG. 2) are attached by fixing members 5, 5, 5 (see FIG. 2) such as bolts and nuts. Further, a pin hole for inserting a pin member 7 such as a lock pin, which will be described later, into the support member 2 in the vicinity of both side end portions in the vicinity of the front end portion in the drawing direction of the shutter member (arrow C in FIGS. 1 and 2). 8, 8 (see FIG. 2) are drilled. The material of the support member 2 is not particularly limited, but is preferably the same material as that of the damper main body 1, and the means for attaching the damper main body 1 to the discharge port 1 e is also particularly limited. Instead, it can be attached by known means such as welding. Furthermore, in the present invention, as the sliding member, a member other than the bearing can be used as appropriate, and as the fixing member, a member other than the fastening member such as a bolt and a nut can be used as appropriate.

  The two left and right shutter members 3 and 3 each have a lower opening 1f (discharge port 1e) of the damper main body 1 so that the lower opening 1f of the damper main body 1 can be closed as a pair. ) And a rectangular plate-like member having the same shape or substantially the same shape, and more preferably the same shape having a length slightly longer than the diameter of the opening 1f (discharge port 1e). 2 and 3, as shown with respect to one shutter member 3, when the damper of the shutter member 3 is attached, it becomes the rear end side of the shutter member withdrawing direction (arrow C in the figure), and the bottom surface guide of the support member 2 At a position corresponding to the portion 2c, a sliding member 4 such as a bearing is attached so as to be slidable on the upper surface of the bottom surface guide portion 2c. Here, the means for attaching the sliding member 4 to the shutter member 3 is not particularly limited. For example, one surface (upper surface in FIG. 3) of the mounting member 4a such as L-shaped steel is the above-described bottom surface of the shutter member. For example, it is fixed to a position corresponding to the guide portion 2c by an appropriate means such as welding, and a sliding member 4 such as a bearing is attached to the other surface (the rising surface) using a fixing member 5 such as a bolt and a nut. It can be attached by means. In the case of this configuration example, when the damper is attached, the lower opening 1f (discharge port 1e) of the damper body 1 is opened / closed at the front end side in the direction in which the shutter member is pulled out (arrow C in FIGS. 1 and 2). Handles 9 and 9 are provided for easy operation. Each of the grips 9 and 9 is attached with connecting members 7a and 7a such as chains so that the above-described pin members 7 and 7 such as lock pins (only one is shown in FIG. 1) are not lost.

  As shown in FIG. 3, the slide damper A of the above configuration example uses a plurality of fixing holes 1 d in the lower opening portion of the livestock feed storage tank B and a plurality of bolts It is attached by a fixing member 5 such as a nut. Here, the kind of the tank to which the slide damper for the livestock feed storage tank of the present invention is attached is not particularly limited. For example, a well-known livestock feed storage tank such as an FRP (fiber reinforced plastic) tank can be used. Can be attached. In FIG. 3, D is a support for the livestock feed storage tank B.

  The slide damper A attached to the lower opening of the livestock feed storage tank B is normally placed in the support member 2 until the two shutter members 3 and 3 are in contact with the rear wall 2a of the support member 2 on the opposite side of the handle. It pushes in and it is set as the state which obstruct | occluded the discharge port 1e (opening part 1f) of the damper main body 1 completely. Then, in order to prevent a situation in which the shutter members 3 and 3 are pulled out by a domestic animal such as a cow, the pin members 7 and 7 are inserted into the pin holes 8 and 8, respectively. The feed is fed into the livestock feed storage tank B, and when the feed is supplied, the pin member 7 is pulled out, and then the shutter member 3 is pulled using the handle 9, and the side wall guide portion 2b and the intermediate guide are drawn. It pulls out along between these from between 2d. At this time, since the sliding member 4 is attached, a sliding operation such as pulling out and pushing in the shutter member 3 becomes easy. In addition, the shutter member of the present configuration example is easier to slide and push, such as pulling out and pushing in, compared to the conventional case where the slide shutter having a size approximately twice that of the present configuration example is pulled out or pushed in. Become. Therefore, when feed is attached to the inner wall of the tank, for example, it is possible to easily push and pull the shutter member to give light vibration to the feed in the tank. When the shutter member 3 is fully opened (when it is fully pulled out), the sliding member 4 of the bottom surface guide portion 2c is locked to the sliding member 4 provided on the leading end side in the pulling direction of the side wall guide portion 2b. Therefore, the shutter member 3 is prevented from falling off the support member 2 by pulling the shutter member 3 too much.

  At this time, for example, if one shutter member 3 is opened, one shutter opening (opening area) is reduced, and it becomes easy to adjust the feed supply amount per time in the livestock feed storage tank to be small. When using such a usage method, for example, the right shutter member is determined on an even day and the left shutter member is set on an odd day, and the two shutter members are alternately left and right open. By pulling out in this way, it is possible to prevent the feed in the tank from being taken out from an uneven position, and even if feed is sequentially fed into the tank, it prevents the situation that the previous feed remains It is also possible to prevent the occurrence of uneven load of feed in the tank and the occurrence of bridging phenomenon, thereby preventing the occurrence of impact sound due to the collapse of feed that caused bridging phenomenon, Damage to the hopper can be prevented. Also, for example, when it is difficult to discharge the feed in the tank due to compaction at the time of feeding the feed, for example, if both of the shutter members are pulled open, the opening area of the damper is increased when feeding the feed in the livestock feed storage tank. Can also be used. The livestock feed storage tank slide damper A is configured such that two (a pair of left and right) shutter members are attached so as to slide in the same direction, and the opening of the damper main body is opened and closed. However, according to the slide damper for livestock feed storage tank of the present invention, depending on the size of the damper, three or more shutter members are attached to slide in the same direction, and the opening of the damper body is opened and closed. It can also be done.

  Next, a configuration example of the method for extracting livestock feed according to the present invention will be described using a slide damper A for livestock feed storage tank. When the feed in the livestock feed storage tank B is taken out, the livestock feed storage / delivery The pair of shutter members 3 and 3 of the tank slide damper A are opened alternately every 1 to 3 times, more preferably every 1 time, and the feed in the tank is supplied. By making the part of the circle completely open, the situation where the discharge part of the feed by the shutter member in the opening of the damper main body is biased is eliminated, and the feed is prevented from being taken out from the biased position in the tank. It becomes possible. This makes it easy to take out the necessary amount of feed in the livestock feed storage tank and prevents the feed in the tank from being taken out from a biased position. Even if it is supplied, it is possible to prevent the feed from the past from remaining, and it is also possible to prevent the occurrence of a bridging phenomenon. The method for taking out livestock feed according to the present invention is to supply the feed in the tank by alternately opening and opening the plurality of shutter members of the slide damper every 1 to 3 times. In addition, it may include a step of supplying the feed in the tank by simultaneously opening two or more shutter members of the slide damper during a period in which the feed is being fed every day.

  In addition, this invention is not limited to the said structure, A various change can be made in the range which does not deviate from the summary of this invention.

It is a schematic perspective view explaining the example of 1 structure of the slide damper for livestock feed storage tanks of this invention. It is the general | schematic bottom view which showed the slide damper for the said livestock feed storage tank with the shutter board removed. It is the schematic perspective view shown in the state which attached the slide damper for the said livestock feed storage tank to the livestock feed storage tank, and was seen from the downward direction.

Explanation of symbols

A Livestock feed storage tank slide damper B Livestock feed storage tank C Shutter member pull-out direction 1 Damper body 1f Opening portion 2 Support member 2b Side wall guide portion 2c Bottom guide portion 2d Intermediate guide portion 3 Shutter member 4 Sliding member 7 Pin member 8 Pin hole

Claims (6)

A damper attached to a lower opening of a livestock feed storage tank, the damper main body having an opening, and attached to the damper main body in parallel or substantially in parallel so as to slide in the same direction. A slide damper for a livestock feed storage tank comprising a plurality of shutter members that can be freely opened and closed. The slide damper for a livestock feed storage tank according to claim 1, wherein the shutter member is a pair of shutter members having the same shape or substantially the same shape, and is slidably attached to the damper body. The damper main body includes a support member that slidably attaches the shutter member, and straddles the side wall guide portion provided so that the support member faces both sides of the opening portion, and the opening portion, An intermediate guide portion provided so as to face the side wall guide portion, each of the guide portions has a sliding member, and the shutter member is slidably held between the adjacent guide portions. The slide damper for livestock feed storage and distribution tanks according to claim 1 or 2, wherein the slide damper is attached as described above. Each of the side wall guide portions includes the sliding member on the distal end side in the pulling direction of the shutter member, the support member further includes a bottom surface guide portion below the side wall guide portions, and the shutter member. The slide damper for a livestock feed storage tank according to claim 3, further comprising a sliding member on the rear end side of the shutter member in the pulling direction so as to be slidable on the upper surface of the bottom guide portion. The slide damper for a livestock feed storage tank according to claim 3 or 4, further comprising a pin member, wherein a pin hole is formed on a distal end side of the support member in a pulling direction of the shutter member. When taking out the feed from the livestock feed storage tank, the shutter member of the slide damper for livestock feed storage tank according to any one of claims 1 to 5 should be opened alternately every 1 to 3 times. A method for taking out livestock feed, characterized by supplying feed in a tank.

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