JP2006231226A - Sorting apparatus of columnar material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sorting apparatus of columnar materials capable of continuously sorting the columnar materials without stopping the rotation of a rotary drum to simply take out the columnar materials having a prescribed length or below. <P>SOLUTION: The sorting apparatus of the columnar materials is equipped with a rotary drum 2 having recessed parts provided to its inner peripheral surface, almost horizontally provided in a freely rotatable manner and fitting the columnar materials having a prescribed length or below in the recessed parts to scoop up them by rotation, a rotary means 3 for rotating the rotary drum 2, the receiving part 4 installed in the rotary drum 2 and having an opening 22, which receives the columnar materials scooped up to fall, provided to its upper part, and discharging the columnar materials from its bottom part and a belt conveyor 5 for feeding out the columnar materials discharged from the receiving part 4 to the outside of the rotary drum 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a columnar object sorting apparatus suitable for sorting columnar objects having a length equal to or shorter than a specified length.

  Columnar catalysts formed into columnar shapes are used as, for example, catalysts for synthesizing unsaturated aldehydes and unsaturated carboxylic acids, catalysts for producing isobutylene, methacrolein, and the like. Further, the columnar catalyst carrier formed into a columnar shape is usually used with a catalyst component supported thereon.

  A columnar material such as a columnar catalyst or a columnar catalyst carrier (hereinafter referred to as columnar catalysts) is cut by a specified length while extruding a powdery raw material from a die while kneading with a solvent. Or it is manufactured by a method of further firing after cutting.

  It is desirable that the length of the columnar object is not more than a specified length. In Patent Document 1 below, as shown in FIG. 3, only a columnar object having a length equal to or less than a specified length is provided in the concave drum 103 within a rotating drum 102 having a concave portion 103 having a specific size on an inner peripheral surface 121. And a method of sorting the columnar objects 101 having a length equal to or shorter than a specified length by scooping them up and dropping them onto a receiving part 104 installed in the rotary drum 102.

According to the sorting method described above, the columnar object 101 having a length equal to or less than the specified length falls to the receiving unit 104, and thus it is necessary to take out the columnar object that has dropped to the receiving unit 104. As a method of taking out, first, a method of taking out by stopping the rotation of the rotary drum 102 can be considered. However, in order to stop the rotating drum, the columnar object sorting operation must be stopped, and there is a problem that the columnar objects cannot be continuously selected. On the other hand, when taking out without stopping the rotation of the rotating drum, there is a problem in work.
Japanese Patent Laid-Open No. 2004-290851

  An object of the present invention is to provide a columnar object sorting apparatus that can easily and continuously take out a columnar object having a specified length or less without stopping the rotation of a rotating drum.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have carried out the columnar objects discharged from the receiving part on a belt conveyor, so that the rotation of the rotating drum is not stopped and the length is not more than the specified length. The inventors have found that the columnar material can be easily and continuously removed, and have completed the present invention.

  That is, the columnar object sorting apparatus of the present invention is provided with a recess on the inner peripheral surface and is horizontally and horizontally disposed, and of the columnar objects charged therein, the length of the specified length or less. A rotating drum that fits a columnar object in the recess and scoops it up by rotation, a drum rotating means that rotates the rotating drum, and an opening that is installed in the rotating drum and receives the columnar object that is scooped up and dropped. It is provided with the receiving part provided with the discharge port which is provided and discharge | emits the columnar thing in the bottom part, and the belt conveyor which carries the columnar thing discharged | emitted from this receiving part out of a rotating drum is characterized by the above-mentioned.

  According to this invention, the columnar thing discharged | emitted from the discharge outlet of a receiving part is carried out of a rotating drum with a belt conveyor. As a result, it is possible to easily and continuously take out a columnar object having a specified length or less without stopping the rotation of the rotating drum.

  Hereinafter, the columnar material sorting apparatus of the present invention will be described with reference to the drawings, taking a columnar catalyst sorting device as an example. As shown in FIG. 1, this columnar catalyst sorting apparatus 10 has a rotary drum 2, a drum rotating means 3, a receiving unit 4, a belt conveyor 5, and a column catalyst that is charged into the rotary drum 2. And a hopper 20.

  The rotary drum 2 has a recess similar to the recess 103 as shown in FIG. Similar to the recess 103, the recess is for scooping up columnar catalysts having a length equal to or shorter than the specified length. It is preferable that a large number of the concave portions are provided over the entire inner peripheral surface 21. In FIG. 1 to FIG. 2, the concave portions of the inner peripheral surface 21 are omitted for convenience.

  It is preferable that the diameter of the concave portion is equal to or slightly smaller than the prescribed length of the columnar catalysts, specifically 0.8 times or more and 1 times or less the prescribed length of the columnar catalysts. When the diameter of the recess is less than 0.8 times the specified length, it becomes difficult to scoop up the columnar catalyst, and when the diameter of the recess exceeds 1 time the specified length, the receiving section 4 has a column shape with a length exceeding the specified length. This is because catalysts may be mixed.

  The depth of the recess is preferably about 0.5 to 1 times the diameter of the columnar catalyst. When the depth of the recess is made larger than the diameter of the columnar catalysts, there is a possibility that columnar catalysts having a length exceeding the specified length may be mixed. On the other hand, when the depth of the concave portion is smaller than 0.5 times the diameter of the columnar catalysts, it may be impossible to collect columnar catalysts having a length equal to or slightly smaller than the specified length. There is.

  The drum rotating unit 3 includes a motor M, a shaft 15, and a bearing 25. The shaft 15 is rotated by the motor M, and the shaft 15 rotates the rotating drum 2. The motor M and the shaft 15 are connected using, for example, a V belt and a pulley. The shaft 15 is inserted into the center of the rotating drum 2, passes through the receiving portion 4, and the tip is held by a bearing 25. The rotation speed of the shaft 15 is 30 rpm or less, preferably 2 to 25 rpm.

  The receiving part 4 is installed in the rotary drum 2 and has an opening 22 at the top and a discharge port 23 at the bottom. The receiving unit 4 is installed in the rotating drum 2 by a shaft 15. The opening 22 is provided in the upper part of the receiving part 4, and receives the columnar catalysts scooped up and dropped. The columnar catalysts received by the opening 22 are discharged from a discharge port 23 provided at the bottom of the receiving unit 4 onto a belt conveyor 5 provided below the discharge port.

  The belt conveyor 5 is installed from below the discharge port 23 to the outside of the rotating drum 2. In this belt conveyor 5, a belt 30 is stretched between a driving pulley 31 and a driven pulley 32. Further, side plates 33 and 33 that support the drive pulley 31 and the driven pulley 32 are provided on the side surface of the belt conveyor 5. The upper ends of the side plates 33 and 33 are set higher than the discharge port 23 of the receiving portion 4, and the upper ends of the side plates 33 and 33 are configured to contact the outer wall of the receiving portion 4 as shown in FIG. . Thereby, it is possible to prevent the columnar catalysts that are not discharged from the discharge port 23 from being mixed on the belt 30. In order to prevent such mixing, the upper ends of the side plates 33 and 33 are set higher than the discharge port 23 of the receiving portion 4 as shown in FIG. It may be configured so as to be in contact with the inner wall of the receiving portion 4, and the upper ends of the side plates 33, 33 may be fixed to the discharge port 23 as shown in FIG. A roller that supports the belt 30 may be provided between the drive pulley 31 and the driven pulley 32 according to the length of the belt conveyor 5.

  The type of belt 30 that can be used in the present invention is not particularly limited. For example, a steel cord, nylon canvas, vinylon canvas, rayon canvas, cotton canvas or the like is used as a core, and the core is covered with resin or rubber. A so-called flat belt can be used.

  A drive source (not shown) such as a motor is connected to the drive pulley 31. In the present invention, it is preferable that the drive pulley 31 is provided not on the rotary drum 2 but on the outside of the rotary drum 2 (on the side where the columnar catalysts are unloaded and unloaded) for the convenience of attaching a drive source. The driven pulley 32 is provided in the rotary drum 2 and is provided at one end of the belt conveyor 5 on the discharge port 23 side. As shown in FIG. 1, the driven pulley 32 prevents the columnar catalyst outside the receiving unit 4 from dropping or falling in accordance with the width of the opening 22 in order to prevent a problem that the columnar catalyst is caught between the driven pulley 32 and the like. It is preferable to install in a place where it is difficult to do. The belt conveyor 5 may be held by a fixing member (not shown) on the driving pulley 31 side, or the side plates 33 and 33 may be fixed at the lower portion of the receiving portion 4.

  FIG. 2A schematically shows the sorting device 10 viewed from the bearing 25 side. W2 indicates the width of the discharge port 23 of the receiving portion 4, W3 indicates the width of the opening 22 of the receiving portion 4, and W7 indicates the width of the belt 30. In the present invention, in the case of the configuration of FIG. 2A, W3 is preferably larger than W2 and W7, and W7 is preferably larger than W2. In this arrangement, all the columnar catalysts falling from the discharge port 23 are discharged onto the belt 30, so that the columnar catalysts outside the receiving portion 4 do not rest on the belt 30. It is preferable to arrange the belt 30 directly below the discharge port 23 with a minimum distance from the belt 30.

  Since it comprised as mentioned above, in the sorting apparatus 10 of this invention, since the columnar catalysts which fell in the receiving part 4 can be reliably carried out by the belt conveyor 5, safe and continuous carrying out is attained. .

  Columnar materials applicable to the sorting apparatus of the present invention include, for example, (1) catalyst powder for synthesizing unsaturated aldehydes, unsaturated carboxylic acids, catalyst powder for producing isobutylene, methacrolein, etc. Columnar catalyst, (2) columnar catalyst carrier in which a powdery catalyst carrier is formed into a columnar shape, (3) columnar desiccant in which a powdery desiccant is formed into a columnar shape, and (4) powdery adsorbent is formed in a columnar shape Columnar adsorbents, (5) columnar feeds in which powdered feeds are formed into columns, (6) columnar fertilizers in which powdered fertilizers are formed in columnar shapes, and the like.

It is a front view which shows an example of the selection apparatus of this invention. It is a schematic diagram which shows a mode that the sorting apparatus of this invention was seen from the bearing side. It is a schematic diagram which shows the conventional sorting device.

Explanation of symbols

2 Rotating drum 3 Drum rotating means 4 Receiving part 5 Belt conveyor 10 Sorting device 15 Shaft 22 Opening 23 Discharge port

Claims (1)

Rotation in which a concave portion is provided on the inner peripheral surface and is horizontally and horizontally disposed, and a columnar material having a length equal to or shorter than a specified length is inserted into the concave portion and scooped by rotation. Drums,
Drum rotating means for rotating the rotating drum;
The rotary drum is installed in the upper part, an opening for receiving a columnar object that is scooped up and dropped is provided at the top, and a receiving part that is provided with a discharge port for discharging the columnar object at the bottom part;
A columnar object sorting apparatus, comprising: a belt conveyor that carries the columnar object discharged from the receiving unit out of the rotating drum.