JPS6127867Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a skirt used in a dewatering conveyor for further dewatering raw materials discharged from a classifier, for example, in a gravel pit or a stone crushing plant.

Generally, a classifier is used to wash and separate sand from the undiluted turbid water at a gravel pit or stone crushing site, but the sand that has been sorted by a classifier contains a lot of water. Therefore, when this is transported by truck or the like, water may leak from the loading platform onto the road, causing inconvenience.

For example, the classifier B shown in FIG. 3 supplies turbid water 50 into the machine, transfers sand that has settled to the bottom of the machine due to the difference in specific gravity using a spiral plate 51, and discharges it from a discharge port 52. However, the excreted sand still contains a lot of water.

The dewatering conveyor is used to further dehydrate the raw material (sand containing a lot of moisture) discharged from the classifier as described above, for example, and receives the raw material into the gutter formed by the inclined conveyor and dehydrates the raw material. The system separates sand and water, with the sand being transferred above the conveyor and the water being transferred below the conveyor.

The present invention relates to a skirt used in a dewatering conveyor as described above, and the purpose of the present invention is to reliably block the raw materials fed onto the conveyor, prevent sand from flowing down the conveyor, and prevent only water from flowing into the skirt. The purpose is to overflow at the upper edge and flow down the conveyor.

In order to achieve this objective, the present invention has developed a dewatering device that slides on the inner surface of the conveyor belt forming an inclined gutter shape, whose peripheral edge follows the direction of travel of the conveyor belt and is curved, and whose upper edge forms an overflow edge. Constructed a conveyor skirt.

Since the dewatering conveyor skirt of the present invention has the above-mentioned structure, the peripheral edge that is curved to follow the direction of movement of the conveyor belt comes into close contact with the inner surface of the conveyor belt.
Moreover, the pressing force of the raw material acting on this peripheral edge brings the peripheral edge into close contact with the inner surface of the conveyor belt, so the raw material fed into the conveyor is reliably blocked, the settled sand is transferred to the upper part of the conveyor, and water is removed. It has the effect of overflowing from the overflowing edge and flowing down the conveyor.

Furthermore, since the peripheral edge of the skirt is in sliding contact with the inner surface of the conveyor belt, it is always biased in the direction of movement of the conveyor belt, thereby providing a more reliable blocking effect.

The embodiments shown in the drawings will be described below.

FIG. 1 is a plan view of the dewatering conveyor to which the dewatering conveyor skirt A of the present invention is attached. First, to explain this dewatering conveyor, the space between the driving roller 2 and the driven roller 3, which are horizontally mounted at the front and rear of the machine frame 1, is shown. There is an endless belt 6 that circulates, and this endless belt 6 touches a vibration table 8 at approximately the center position on the conveying side.
The gutter portion 7 is formed by being supported by the gutter portion 7.

As shown in FIGS. 2, 3, and 4, the vibration table 8 has a substantially flat cylindrical shape, and a spring 11 is installed between the bottom plate 10 of the support plates 9, 9 fixed to the outer peripheral surface of the vibration table 8 and the machine frame 1. is interposed and is elastically attached to the machine frame 1.

Vibrators 13, 13 are attached to the bottom of the vibration table 8 via a member 12 extending from the front and back of the bottom.
is starting to vibrate.

Further, the vibration table 8 is supported by support devices 14, 14. This support device 14, 14 is a vibration table 8
This is to prevent the machine from flipping in the direction of inclination and falling over.

As described above, the vibrating table 8 supports the central portion of the belt 6 on the conveyance side, and the belt 6 curves along the inner surface of the vibrating table 8 to form the gutter portion 7.

Therefore, the driving roller 2 and the driven roller 3
The belt 6 circulating between the belts 6 is in a flat state on the non-conveying side, and gradually becomes curved as it moves from the driven roller 3 toward the vibration table 8 to form a gutter 7, and then passes through the vibration table 8. As it moves toward the drive roller 2, it becomes flat again.

The dewatering conveyor skirt A of the present invention is disposed below the gutter section 7 formed as described above,
The peripheral edge portion 20 is in sliding contact with the inner surface 6a of the belt 6, as shown in FIG. 4, and is curved to follow the traveling direction of the belt 6.

Skirt A has a semicircular shape,
It is formed by cutting a rubber plate, and its size is larger than the inner diameter of the gutter 7 so that the peripheral edge 20 can slide against the inner surface 6a of the belt and curve following the direction of belt movement. It is made large.

Further, the upper edge 21 of the skirt A forms an overflow edge as shown in FIG.

Skirt A as described above operates as follows.

That is, as shown in Fig. 3, the dewatering conveyor C
is arranged below the classifier B, and in the gutter part 7,
The raw material discharged from the discharge port 52 of the classifier is received.

The raw material received in the gutter 7 tends to flow downward along the sloping gutter 7, but is blocked by the skirt 8 as shown in FIG. 4.

At this time, the peripheral edge 20 that is curved following the traveling direction of the belt 6 comes into close contact with the belt inner surface 6a, and the pressing force of the raw material acting on this peripheral edge 20 brings the peripheral edge 20 into close contact with the belt inner surface 6a. The raw material is reliably blocked. Further, since the peripheral edge portion 20 is always urged in the direction of belt movement through sliding contact with the belt inner surface 6a, the skirt A is not succumbed to the force of the material flowing downward.
A reliable blocking effect can be obtained.

The raw material blocked by skirt A is
The vibrations from the vibrators 13 and 13 are transferred to the vibration table 8.
The water between the sand particles is driven out by the action of this vibration, and the dehydrated sand 54 is transferred to the end of the conveyor and sent to the chute 5.
5 and is conveyed to the appropriate place by the conveyor 56, while the expelled water 53 overflows when the water surface exceeds the overflowing edge 21 of the skirt A, flows on the belt 6, and flows from the lower end of the conveyor to the water tank 4.
1, and is drained to the appropriate place by a pump (not shown).

Next, a second embodiment of the dewatering conveyor skirt of the present invention will be described.

FIG. 5 is a schematic front view showing a dewatering conveyor C' that is different from the dewatering conveyor C to which the second embodiment A' of the dewatering conveyor skirt of the present invention is attached.

The feature of this dewatering conveyor C' is that a flexbell conveyor belt is adopted as the conveyor belt, and the shape of the skirt A' of the present invention is also different accordingly, so the flexbell conveyor belt will be explained first. 60 is the flexible belt conveyor belt, which, like the previous dewatering conveyor C, has a driving roller 63 and a driven roller 6.
Cycles between 4.

This flexbell conveyor belt 60 has a sixth
It consists of a bottom belt 61 and side belts 62, 62 formed integrally with the bottom belt 61, and the side belts 62, 62 have a bellows shape as shown in FIG.

Therefore, the flexbel conveyor belt 60
The side belts 62, 62 are shaped like a gutter from the beginning, and the reason why the side belts 62, 62 are bellows-shaped is to enable them to be wound around the rollers 63, 64.

Since the flexbell conveyor belt has the shape shown above, this dehydration conveyor skirt
A' is also shaped accordingly.

That is, as shown in FIGS. 6 and 8, the skirt A' consists of a bottom tongue portion 65 that slides on the bottom belt 61, and side tongue portions 66, 66 that slide on the side belts 62, 62. 66 is formed longer than the bottom tongue portion 65. This is because the side belt 62 is bellows-shaped, and thus prevents the raw material from flowing down the skirt through the gap created between the side belt 62 and the side tongue portion 66.

Two embodiments A and A' of the dewatering conveyor skirt of the present invention have been described above, but the means for attaching these skirts to the dewatering conveyor is arbitrary, and for example, the mounting angle 26 as shown is employed.

As shown in FIGS. 6 and 7, this mounting angle 26 consists of vertical members 27, 27 attached to the machine frame 1, a horizontal member 28 suspended horizontally on the vertical members 27, 27, and a skirt suspended from the horizontal member 28. It consists of a presser foot 29.

The skirt presser 29 includes a material 30 having a U-shaped cross section and three connecting members 31, 31, 3 welded to the material 30.
a bolt 3 screwed into a U-shaped member 30;
The upper edge of the skirt A or A' is sandwiched between the plate 33 pressed by the U-shaped member 30 and the inner surface of the U-shaped member 30.

The skirt presser 29 is attached by connecting the connecting member 31 and the horizontal member 28 with belt nuts 34, 34, 34, but the horizontal member 28 and the connecting member 31 have elongated holes 35 in corresponding positions, respectively.
36... is perforated, so skirt A or
The mounting position of A′ can be adjusted up, down, left and right.

Therefore, the height of the skirt A or A' can be adjusted according to the amount of raw material processed, and the height of the bolt nut 34
If it is loosened appropriately, the skirt can move left and right within the range of the elongated hole 35 of the horizontal member 28, and can follow the meandering of the belt 6 or 60 in the left and right direction.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a dewatering conveyor to which the dewatering conveyor skirt of the present invention is attached. FIG. 2 is a drawing showing the X view of FIG. 1 in the left half and the Y view in the right half. Third
The figure is an explanatory diagram of the usage state of the dehydration conveyor. FIG. 4 is an explanatory diagram of the function of the skirt of the present invention. FIG. 5 is a schematic front view of a dewatering conveyor to which a dewatering conveyor skirt of the present invention is attached, which is different from that shown in FIG. 1. Figure 6 is a front view of the mounting angle. Figures 7a and 7b are front and side views of the skirt presser. FIG. 8 is a partially omitted plan view of FIG. 5. A, A'... Original dehydration conveyor skirt, 6,
60... Conveyor belt, 7... Gutter section.

Claims (1)

[Scope of utility model registration request] A dewatering conveyor skirt that slides on the inner surface of a conveyor belt forming an inclined gutter shape, has a peripheral edge curved to follow the direction of travel of the conveyor belt, and has an upper edge forming an overflow edge.