JPS5889953A - Detachable rotary classifying machine - Google Patents

Abstract

PURPOSE:To facilitate inspection, etc., by allowing the precipitate discharge part consisting of a mirror platg, conical body, and drain board to be detached with those three bodies in one, and disassembline the conical body into a cone shoot and a reverse mirror plate piece. CONSTITUTION:A drum body 1 is constituted by sticking a front mirror plate 4 having a mirror plate fitting opening 3 in one axial end surface of a cylinder 2 so that a rear mirror plate 6 having a surface scupper 5 in the other end surface is undetachable. At a precipitate discharge part B, adapter plates 10 are projected on the front internal circumference of the cylinder 2 and the back surface of the front mirror plate 4. Each adapter plate 10 is provided with two adjacent sides of an outer circumference side drain board 16 made of a rectangular perforated plate with a bolt and a nut. The mirror plate 4 is fitted with a doughnut-shaped mirror plate 17, and a conical body 24 having a sharp end facing the precipitate discharge outlet 20 of the mirror plate 17 is provided. The conical body 24 consists of a cone shoot 25 and a reverse mirror plate piece 26.

Description

[Detailed description of the invention] The present invention relates to a disassembleable rotary classifier.

Most of the components of a conventional rotary classifier are completely fixed by welding or the like, and once assembled, it is almost impossible to disassemble the classifier. However, in the case of a classifier used for the purpose of obtaining sand, etc., the parts that discharge sand, etc. are particularly worn severely, and it is necessary to replace the members of these parts. Therefore, in the past, a lot of time was wasted in repairing or replacing this part, and the work was very troublesome.

The purpose of Honjimeisha is to provide a disassembly type rotary classifier in which the discharge part of sand and the like can be easily disassembled, so that the part can be easily inspected, repaired, replaced, etc.

This will be explained in detail below with reference to the figures.

FIG. 1 shows a first embodiment of the present invention. In the same figure, (A) is a rotating drum that is horizontally supported and rotated, and the drum body (1) further includes a third drum.
As shown in the figure, a front end plate (4) is provided with a end plate attachment port (5) on one end surface in the axial direction of the cylindrical body (2), and a rear end plate (6) is provided with a surface water discharge port (5) on the other end surface. ) are each fixed irremovably by welding or the like, and a spiral mounting plate (7) is similarly fixed to the inner periphery of the cylindrical body (2). Bolt mounting holes (8) for the end plate (to be described later) are provided on the circumference of the end plate attachment opening (6) of the front end plate (4), and on the back surface of the front end plate (4) and the front inner periphery of the cylindrical body (2). A mounting plate (io)'t with bolt mounting holes (9) for a drain plate (to be described later) is provided in each case.

The spiral mounting plate (7) is also provided with bolt mounting holes m)* for the spiral blade in its longitudinal direction.

A rotating drum (1) is further provided on the outer periphery of the cylindrical body (2).
) and a support rail (12) of a roller (not shown) that rotatably supports it horizontally and a chain tooth (16) of a drive chain are fixed.

The drum body (1) configured as described above further includes:
The helical blades (14) are attached along the helical mounting plate (7) with bolts and nuts (not shown) through bolt mounting holes (11) and (15), respectively. Spiral blade (14
) is installed so that the sediment is transferred toward the front end plate (4) by the rotation of the rotating drum (1). Note that several types of spiral blades (14) with different dimensions such as height, length, and thickness are prepared, and these are attached in a state where they are joined in the circumferential direction. When the heights of the spiral blades (14) are different (sometimes they are the same height), they become smaller from the front mirror plate (4) @ to the rear mirror plate (6) @, as shown in Figure 1. do it like this.

The sediment discharge section (B) of the rotating drum (4) is constructed as follows.

That is, in the discharge section (B), the front mirror plate (4
) and the front inner periphery of the cylindrical body (2) are provided with mounting plates (10) protruding from each other. Attach two adjacent sides of the drain plate (16) with bolts and nuts (not shown). In addition, when installing the outer peripheral side draining plate (16), the − side of the draining plate (16) should be aligned with the spiral blade (
It is preferable to attach it so that it joins with the terminal end of 14).

The outer peripheral side drainage plate (16) is provided in parallel to the radial direction or in a direction inclined to the radial direction so as to be continuous with the spiral blade (14).

Next, the donut-shaped end plate (17) is attached to the front plate (4) through the bolt mounting hole (18) and the bolt mounting hole (8) of the front plate (4). (
4) Attached to. The end plate (17) has a sedimentation/discharge port (20) in the center, and on the back side of the end plate (17) there is a bolt mounting hole (22) of the inner drain plate (21).
A mounting plate (26) is provided in a protruding manner.

A cone (24) with a pointed end facing the sedimentation/discharge port (20) of the end plate (17) is provided. The cone (24) consists of a cone chute (25) at the tip and a trapezoidal back mirror plate piece (26) divided into an appropriate number of pieces forming a narrow surface part. A cone chute (25) is provided with a radially divided partition plate (27) protruding from the cone chute (25). Also, the corn shoot (
2F) is provided with a bolt attachment hole (28) for connecting to the back mirror plate piece (26). The mounting plate (29) is completely formed by bending the opposing oblique sides of the back mirror plate piece (26).
Provide a bolt mounting hole (50) in 29).

Attach the - side of the trapezoidal inner drain plate (21) made of a perforated plate to the mounting plate (23) of the end plate (17) with bolts and nuts (
(not shown). A mounting plate (29) adjacent to the diagonal mirror plate piece (26) facing the draining plate (21)
The five parts are fastened together using intervening bolts and nuts (not shown). In this way, the back mirror plate piece (26) and the inner peripheral side drain plate (
21) in the circumferential direction, the MW plate piece (26
) creates a polygonal pyramid. Between this polygonal pyramid and the mirror plate (17), an appropriate number of inner drain plates (21) are arranged in the radial direction in a continuous state with the outer circumferential drain plate (16) or in a discontinuous state.゛It will be constructed.

Finally, connect the bolt mounting hole (<50) provided at the tip of the back mirror plate piece (26) and the bolt mounting hole (2) of the cone chute (25).
8) and a cone shoot (2) at the tip of the polygonal pyramid.
5) is fastened with bolts and nuts (not shown), the end plate (17) and the cone (2) are attached as shown in FIG.
4) and the inner peripheral side draining plate (21), the sediment discharge part (B) is completed.

This sediment discharge part (B) is inserted from the front side of the drum body (1) to connect the end plate (17) and the front end plate (4).

Further, inside the rotating drum (1), a raw water supply cylinder (32) into which a raw water supply pipe (51) is inserted as necessary is supported by a support arm (55), and the spiral blade ( 14) Attach an excessive number of donut-shaped jam plates (34) on top.

The first embodiment configured as described above functions similarly to a known rotary classifier.

That is, due to the rotation of the rotating drum (A), the drum (
Sediment such as sand in the raw water poured into the gradient is first transferred forward (to the right in Figure 1) by the spiral blade (14), then sent onto the outer drain plate (16), As the draining plate (16) rotates upward, it slides on it, and further slides on the inner circumferential side draining plate (21) to be dewatered, and the cone chute (2) follows the slope formed by the backing plate (26).
5) and is discharged to the outside from the settling outlet (20) of the end plate (17), while the surface water of the raw water stored inside the rotating drum (A) is The water is discharged to the outside beyond the surface water outlet (5) of the end plate (6).

Therefore, in the present invention, the L1 end plate (17), the cone (24)
) and the inner peripheral side drainage plate (21).
) is constructed so that it can be rotated and removed from the drum (A), so inspection, repair, and
Exchange 'e? If necessary, remove the end plate (17) from the front end plate (4) and remove the cone (24) and inner drain plate (
21) can be taken out to the front integrally with the mirror plate (17). Therefore, it is easy to observe the degree of wear inside the nuclear discharge section (B) and the rotating drum (A), inspect it, repair defective parts, replace parts, etc. In addition, even if the discharge part (B) is attached, it is disassembled into the cone (24) a cone shoe (25) at the tip part and the individual back mirror plate piece (26) of the cone surface part, so that the inner periphery The side drain plate (21) and the end plate (17) can be disassembled into pieces. Furthermore, the outer circumferential sea bream drainer & (16) can be similarly removed from inside the rotating drum (1). Therefore, these parts can be easily replaced.

The same applies to the spiral blade (14), but since the degree of wear is relatively low compared to the sediment discharge section, it may be fixed to the cylindrical body (2) in a non-removable manner.

However, it goes without saying that a removable structure as in this embodiment would be more convenient.

FIG. 2 shows a second embodiment of the present invention, in which the sediment discharge section (B) of the first embodiment is arranged in two stages in the axial direction. That is, the mirror plates (17), (17)', cones (24), (2
4)', inner peripheral side draining plates (21), (21)' and outer peripheral side draining plates (16), (16)' are arranged in two stages in the axial direction. Also, cones (24), (24)
As in the case of the first embodiment, ' (25), (25)' and the back mirror plate piece (26),
(26)' can be decomposed into In the case of the @2 embodiment, an intermediate spiral blade (14)' is provided between the first-stage discharge section (B)' and the second-stage discharge section (B), so that the two are completely continuous.

As described above, according to the present invention, the sediment discharge section of the rotary classifier, which is subject to significant wear due to the discharge of sediment such as sand, is configured to be removable and disassembled into individual parts, making it easy to inspect, repair, replace, etc. can be easily performed.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view of the first embodiment of the rotary classifier of the present invention, Fig. 2 is a longitudinal sectional front view taken along line I-1 in Fig. 1, Fig. 3 is a longitudinal sectional side view of the drum body, and Fig. 4 is a longitudinal sectional side view of the first embodiment of the rotary classifier of the present invention. A front view of the sediment discharge section, FIG. 5 is a rear view of FIG. 4, and FIG. 6 is a plan view of FIG. 4.
Figure 7 is a vertical cross-sectional side view of the mirror plate, Figure 8 is a vertical cross-sectional view of the cone chute 1gtf+, Figure 9 is a rear view of the back mirror plate piece, and Figure 10 is a vertical cross-sectional side view of the mirror plate.
1. Figure 9 is a cross-sectional view taken along the line ■-■, Figure 11 is a longitudinal sectional front view of the inner drain plate, and Figure 12 is a longitudinal sectional front view of the outer drain plate.
FIG. 15 is a longitudinal sectional side view of the second embodiment. ((Rotation): Rotating drum (B): Sediment discharge section (5)
Two-surface water outlet (14): Spiral vane (16):
Outer drain plate (17): Spring plate (20): Sedimentation-discharge port (21): Inner drain plate (24): Cone (
25) : Corn Shinny) (26) : Back mirror plate piece. Agent Patent Attorney Tsuji 3 Department 4 Figure 17 Figure 5 7 1 S 6 Figure 1 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] 1. A sediment discharge port is provided on one end surface in the axial direction of the rotating drum, and a surface water discharge port is provided on the other end thereof, and a screw thread for transferring the sediment is provided on the inner circumference of the rotating drum, and A drainage plate is provided in the radial direction between the cone whose tip faces the sediment discharge port and the end plate forming the sediment discharge port, and the raw water input into the rotating drum is separated from sediment and surface water. In the rotary classifier, the precipitate is discharged from the precipitate discharge port, and the iron surface water is discharged from the surface water discharge port. The sediment discharge section consisting of a plate is constructed so that the three parts can be removed in one piece, and the cone can be disassembled into a cone chute at the tip and a back mirror plate piece which is divided at the cone surface. A disassembly type rotary classifier characterized in that the plate can be disassembled into an outer peripheral side draining plate and an inner peripheral side draining plate.