JPS62777Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vibrating sieve that is used on the outlet side of a crusher, and is particularly effective in a crushing system that returns crushed raw materials to the crusher periodically or as needed. be.

Recently, as one of the crushing systems, one having the flow shown in FIG. 1 has been adopted. In this system, during normal operation, raw materials crushed by a crusher A such as a corn crusher are sent to a vibrating sieve C by a conveyor B to be sieved into large and small particles, and large particles are sent to a crusher by a return conveyor D. Send it back to A and crush it again. Then, periodically or as needed, the necessary amount (usually the entire amount) of the crushed raw material to be used as a crushing medium is transferred directly to the return conveyor D by the transfer conveyor E without being sent to the sieving machine C. It is intended to bring people back to Japan. In such a crushing system, in order to switch the conveyance direction of the crushed raw material between the sieving machine C side and the transfer conveyor E side, the conveyor B has a tripper, that is, the position of the discharge end can be changed. A conveyor equipped with a tripper mechanism is used, but this conveyor with a tripper has a complex structure and is large, resulting in high equipment and power costs, as well as handling, maintenance, and
It was disadvantageous in various aspects such as inspection. In addition, as for the entire system, transport conveyor B, return conveyor D
In addition to the above, a transfer conveyor E is required.
The equipment was extensive.

Therefore, the present invention aims to provide a vibrating sieve that can serve as a substitute for the transfer conveyor E in such a crushing system.

The feature of the present invention is that the material supplied from the raw material supply port is vibrated to the machine body, which has a raw material supply port at one end and a discharge port at the other end, and a sieve surface is provided between these. In a vibrating sieve machine configured to sift the particles while moving them on the sieve surface and discharge the particles remaining on the sieve surface from the discharge port, the sieve surface is supplied as a raw material to the upper part of the sieve surface in the machine body. A transfer gutter is provided as a non-sieve surface so as to partially cover the area between the mouth and the discharge port, and on the other hand, a raw material input chute is provided at a position facing the raw material supply port, and the chute has the above-mentioned sieve surface side. A sieve side input section for inputting the raw material into the transfer gutter side and a transfer gutter side input section for inputting the raw material into the transfer gutter side are provided in a branched manner, and at the branching part of both the sieve side and transfer gutter side input sections, The invention consists in a vibrating sieve machine equipped with a damper that opens and closes both input sections.

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes the machine body (the sieve machine body), which has a raw material inlet 2 at one end and a discharge outlet 3 at the other end, with a sieve surface 4 such as a mesh between them, and is elastically supported on the floor or the like via support springs 5, 5. A vibrator (not shown) is attached to this machine body 1,
The vibration applied to the aircraft 1 by this vibrator causes
Raw materials such as ore supplied to the raw material supply port 2 are sieved into large and small particle groups as they move on the sieve surface 4, and the small particle groups that fall below the sieve surface 4 are collected via a recovery port (not shown), while the large particle groups remaining on the sieve surface 4 are discharged from the discharge port 3. The above configuration is the same as that of a conventional vibrating sieve. In addition, a return conveyor D in the crushing system shown in Figure 1 is installed on the discharge side of this sieve, and the large particle groups discharged from the discharge port 3 are sent back to the crusher A via the conveyor D and crushed again.

Therefore, in this vibrating sieve machine, the material is transferred to the upper part of the sieve surface 4 of the machine body 1 so as to cover the central part of the sieve surface from the raw material supply port 2 to the discharge port 3 with a predetermined width dimension. A gutter 6 is provided. This transfer gutter 6 is formed in the form of a blind gutter with a U-shaped cross section, which acts as a non-sieving surface that only carries out conveyance without performing any sieving action.
It is attached to a support frame 7 extending inside 1b. On the other hand, a raw material input chute 8 is provided at a position facing the raw material supply port 2 in the upper part of the body 1. The raw material inputting chute 8 has a branched sieve surface side inputting section 9, 9 for inputting the raw material to the sieve surface 4 side, and a transfer gutter side inputting section 10 for inputting the raw material to the transfer gutter 6 side. Dampers 11 and 12 at the branching part
has been established. These dampers 11 and 12 are pivotally connected to each other so as to be able to swing with the lower part as a fulcrum.
1 and 12 are in an inverted V-shaped state (hereinafter referred to as steady state) shown by the solid line in FIG. On the contrary, when the state is in an inverted V shape (hereinafter referred to as the state at the time of transfer) as shown,
The sieve side input parts 9, 9 are closed, and the transfer gutter side input part 10 is opened. In addition, this damper 11,1
The second operation may be performed manually by operating a handle from the outside, or may be performed automatically using an electric motor, an electromagnet, or the like. Further, on the inlet side of this raw material input chute 8, the discharge end of the conveyor B in the crushing system shown in FIG. 1 is arranged.

The operation of this vibrating sieve machine with such a configuration will be explained in relation to the crushing system shown in FIG. damper 11 in 8,
12 is kept in the above-mentioned inverted V-shaped steady state. In this way, the crushed raw material that has entered the input chute 8 is supplied to the sieve surface 4 from the sieve surface side input portions 9 and 10. Therefore, at this time, the raw material is sieved while moving on the sieve surface 4, and only the large particles remaining on the sieve surface 4 are discharged from the discharge port 3 and sent back to the crusher A by the return conveyor D. The original effect is fulfilled.

Now, when you want to return all of the crushed raw material to crusher A as a crushing medium in crusher A,
The dampers 11 and 12 are switched to the inverted V-shaped transfer state. In this way, the entire amount of the crushed raw material is fed only into the transfer gutter 6 through the transfer gutter-side input part 10 of the input chute 8, moves on the transfer gutter 6 without being subjected to any sieving action, and returns from the discharge port 3. It is transferred to conveyor D. That is, at this time, this vibrating sieve machine functions as a vibrating feeder which is a conveying machine, in other words, it functions as a substitute for the transfer conveyor E in the crushing system shown in FIG.

Therefore, when this vibrating sieve machine is used in the crushing system shown in Fig. 1, the transfer conveyor E is not required, and there is no need to use a conveyor with a tripper, which has a complicated structure as in the past, for the transfer conveyor B. A conveyor with a simple configuration will suffice.

By the way, in the above embodiment, a damper structure is adopted in which the sieve side input parts 9, 9 and the transfer gutter side input part 10 are selectively opened and closed, but the both side input parts 9, 9
and 10 may be simultaneously opened by a desired amount, thereby making it possible to adjust the amount of returned crushed raw material. It is also possible to configure the both-side input portions 9, 9 and 10 to be opened and closed by separate dampers. moreover,
Contrary to the above embodiment, the transfer gutter 6 may be distributed to both the left and right sides of the sieve surface 4, or may be provided on either the left or the right side.

As described above, the vibrating sieve of the present invention can function as a vibrating feeder that only carries out conveyance without performing any sieving action, so when used in the crushing system shown in Fig. Not only can the conveyor E be omitted, but also a normal conveyor can be used as the transport conveyor B instead of a conveyor with a tripper, which has a complicated structure.
Therefore, it is possible to simplify the equipment, reduce the cost, and simplify the handling of the entire system.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a crushing system that can effectively use the present invention, FIG. 2 is a schematic vertical sectional view showing an embodiment of the present invention, and FIG. 3 is a plan view of the same.
FIG. 4 is a sectional view taken along the line of FIG. 2. 1... Machine body, 2... Raw material supply port, 3... Discharge port, 4... Sieve surface, 6... Transfer gutter, 8... Raw material input chute, 9, 9... Sieve surface side input part, 1
0... Transfer gutter side input section, 11, 12... Damper.

Claims (1)

[Scope of utility model registration request] By applying vibration to the machine body, which has a raw material supply port at one end, a discharge port at the other end, and a sieve surface between them, the raw material supplied from the raw material supply port is moved on the sieve surface. In a vibrating sieve machine configured to sieve and discharge the particles remaining on the sieve surface from the above-mentioned discharge port, a vibrating sieve machine is installed on the top of the sieve surface in the machine body, and the sieve surface extends between the raw material supply port and the discharge port. A transfer gutter is provided as a non-sieving surface so as to partially cover the
A raw material input chute is provided at a position facing the raw material supply port, and the chute is branched into a sieve side input part for inputting the raw material to the sieve side, and a transfer gutter input part for inputting the raw material to the transfer gutter side. 1. A vibrating sieve machine characterized in that a damper is provided on the sieve surface side and at a branching part of the transfer trough to open and close the two input sections.