JPS6145853Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a filter press.

A hydraulic cylinder is generally used as a means for tightening between plates in a filter press.
However, recently, due to the improvement of overcapacity,
There is a need for higher pressure compression and more chambered plates. Therefore, if you want to meet the above requirements with a single hydraulic cylinder and obtain a tightening pressure that can withstand high compression and a stroke that can open and close between the plates with more chambers, it is necessary to use hydraulic pressure. The cylinder diameter and stroke become too large.

One of the purposes of this invention is to solve these problems and provide a longer opening and closing stroke between the plates.
To provide a filter press which is provided with a mechanism for opening and closing between plates and a clamping mechanism and which can apply a higher clamping pressure.

Additionally, the overarea of a filter press is often determined by the intended use and by the throughput required by the user. However, from the perspective of filter press manufacturers, preparing multi-stage models with different overareas is not suitable for mass production and increases costs. However, the filter press has the advantage that the overarea can be changed relatively easily by changing the number of plates. Another purpose of this invention is to meet the above-mentioned requirements and to provide the filter press with a long plate opening/closing stroke and high compression pressure without causing any problems even when the number of plates is changed. The object of the present invention is to provide a filter press having an opening/closing mechanism and a tightening mechanism between plates.

In other words, the filter press according to this invention is
A mobile machine frame with a trolley having a self-propelled device is disposed at the front of the fixed machine frame so as to be movable back and forth. The tie rod is supported by a trochanter that is pivotally supported by the frame, and is movable back and forth on the tie rod via a support device that moves in contact with the tie rod between the fixed machine frame and the moving machine frame. A plurality of rows of supported plates are arranged, and a press head connected to a moving machine frame or a fixed machine frame via a hydraulic cylinder is arranged either in front or behind the row of plates. The press heads arranged in the front and rear direction, each plate, and the fixed machine frame or the moving machine frame are connected by a loose coupling device so as to be openable and closable, and the hydraulic cylinder is connected between the tie rod at a proper position and the moving machine frame. The present invention is characterized by being provided with a detachable locking device that prevents the moving machine frame from moving forward when the space between the plates is reduced and the spaces between the plates are closed. To explain in detail, the first,
In Figure 2, 1 is the fixed machine frame installed in a fixed manner,
Reference numeral 2 denotes two rails placed in front of the stationary machine frame 1 and laid in the front-rear direction; 3 indicates a moving machine frame with a trolley 4 that runs on the rails 2; When the motor 5 on the trolley 4 is rotated forward or backward, the trolley 4 moves forward and backward along the rail 2. Reference numerals 6 and 7 designate two pairs of tie rods whose rear ends are fixed to the stationary machine frame 1 and protrude forward. The front portion is supported in a rolling manner by rotors 9, 10, 11, and 12 which are pivotally supported on the moving machine frame 3 at the position of the hole 8.

Between the fixed machine frame 1 arranged as described above and the mobile machine frame 3 in front thereof, a large number of plates 13 are installed.
It is supported by a pair of upper tie rods 6 on the left and right sides so as to be movable back and forth. That is, each plate 13
A pair of support arms 14 extending left and right are brought into sliding contact with the tie rod 6, and is supported by the tie rod 6 so as to be freely movable back and forth. At the front of the row of plates 13 supported by the tie rods 6 in this way, there is a press head 16 connected to the front moving machine frame 3 via a short-stroke but high-pressure hydraulic cylinder 15. The links 17 and 18 are connected loosely between the press head 16, each plate 13, and the fixed machine frame 1, which are lined up in a row in the front-rear direction, that is, each plate 1
The three sections are connected so that they can be opened and closed.

A detachable mechanism is provided between the tie rods 6 and 7 at appropriate locations and the moving machine frame 3 to prevent the moving machine frame 3 from moving forward when the hydraulic cylinder 15 is contracted and the spaces between the plates 13 are closed. The locking device 20 of this embodiment is arranged at the portion of the tie rods 6 and 7 that are located immediately in front of the mobile frame 3 in the above state.
It is composed of locking holes 21 formed respectively, and locking hardware 22 provided on the front surface of the mobile machine frame 3 and removably engaged with the locking holes 21,
The locking hardware 22 of the embodiment is a piston rod 23a of a hydraulic cylinder 23 attached to the mobile machine frame 3.
When the hydraulic cylinder 23 is expanded or contracted, the locking hardware 22 is removed from the locking hole 21. That is, in the above state, when the hydraulic cylinder 23 is extended, the locking hardware 2
2 enters the locking hole 21, and the locking hardware 22 engaged with the locking hole 21 locks the fixed machine frame 1 of the moving machine frame 3.
Relative advancement of the vehicle is prevented via the tie rods 6 and 7. Note that 24 is a support metal fitting that supports the locking metal fitting 22 in a slidable manner, and 21' is a locking hole drilled in the tie rods 6 and 7 at different positions.

Next, to explain the operation, since the filter press according to this invention has the above-mentioned configuration, each plate 1 in the closed state (Fig. 1)
To open the three spaces, first reduce the hydraulic cylinder 15 to release the tightened state between each plate 13, then remove each locking metal fitting 22 from the locking hole 21, and then,
It is preferable to rotate the motor 5 in the forward direction to move the mobile frame 3 forward. Then, the press head 16 moves forward,
The plates 13 between the press head 16 and the stationary frame 1 are spaced apart at a constant distance allowed by links 17 and 18, respectively.

In order to close the spaces between the plates 13 that have been opened as described above, it is sufficient to perform the operation opposite to the above, and the spaces between the plates 13 are closed and locked by first moving the mobile frame 3 back a large distance. A hole 21 is exposed on the front side of the mobile frame 3. Next, in this state, each hydraulic cylinder 23 is extended to engage each locking hardware 22 with each locking hole 21 . When the hydraulic cylinder 15 is then extended, the moving machine frame 3 is prevented from moving forward relative to the stationary machine frame 1 by the locking hardware 22 that engages with the locking holes 21 of the tie rods 6 and 7. from,
Between the press head 16 and the stationary machine frame 1, high pressure from the hydraulic cylinder 15 is applied between each plate 13, and the plates 13 are maintained in a strongly tightened state.

In the above embodiment, two pairs of tie rods 6 and 7 are provided, but in other embodiments, there may be one pair of tie rods (not shown). Further, in the above embodiment, the press head 16 is arranged between the row of plates 13 and the mobile frame 3 in front thereof, but in other embodiments, as shown in FIG. As shown, the press head 16 may be arranged between the row of plates 13 and the frame 1 behind it.

Above, the filter press according to this invention has been described with reference to the embodiments. As mentioned above, according to the filter press of this invention, the simple opening and closing operation between each plate, which requires a long stroke, can be performed by moving the moving machine frame back and forth. This can be done by self-propelling, so the high clamping pressure that must be applied between each plate in order to enable high-pressure dehydration when the plates are closed is ,
Even a short-stroke hydraulic cylinder arranged between the press head and the moving machine frame or between the stationary machine frame can act between the plates. Therefore, the filter press of this invention can achieve high compression at low cost.

Furthermore, since a hydraulic cylinder with a long stroke is not used to open and close the plates, there is nothing that protrudes significantly forward or backward from the front and rear machine frames when the plates are opened. Therefore, the filter press of this invention can reduce the installation area required for its installation.

In addition, the filter press of this invention can be used by simply changing the position of the locking device for preventing the moving machine frame from advancing between the tie rod and the moving machine frame in the length direction of the tie rod, and the length of the hydraulic cylinder for tightening the tie rod. The number of plates can be changed arbitrarily without changing the size, and therefore, the overarea of the filter press can be easily changed depending on the usage conditions of the filter press.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing one embodiment of the filter press according to this invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is a partially cutaway side view showing another embodiment. FIG. 1... Fixed machine frame, 3... Mobile machine frame, 4... Dolly, 6, 7... Tie rod, 9, 10, 11, 1
2...trochanter, 13...plate, 14...support arm, 1
5...Hydraulic cylinder, 16...Press head, 1
7, 18... link, 20... locking device, 21,
21', 21''...Latching hole, 22...Latching hardware.

Claims (1)

[Scope of utility model registration request] A mobile machine frame with a trolley having a self-propelled device is disposed at the front of the fixed machine frame so as to be movable back and forth. The tie rod is supported by a trochanter that is pivotally supported by the frame, and is movable back and forth on the tie rod via a support device that moves in contact with the tie rod between the fixed machine frame and the moving machine frame. A plurality of rows of supported plates are arranged, and a press head connected to a moving machine frame or a fixed machine frame via a hydraulic cylinder is arranged either in front or behind the row of plates. The press heads arranged in the front and rear direction, each plate, and the fixed machine frame or the moving machine frame are connected by a loose coupling device so as to be openable and closable, and the hydraulic cylinder is connected between the tie rod at a proper position and the moving machine frame. A filter press characterized by being provided with a removable locking device that prevents the moving machine frame from moving forward in a state where the space between the plates is reduced and the spaces between the plates are closed.