JP2668647B2 - Automatic iron removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the chemical industry, food industry,
The present invention relates to an automatic ironing apparatus for automatically removing magnetic substances such as fine iron powder and iron pieces mixed in raw materials used in the chemical industry, the ceramic industry, the mining industry, the high-tech industry, and the like.

[0002]

2. Description of the Related Art Conventionally, an automatic iron removing device shown in FIG. 5 has been proposed as a device for removing magnetic materials such as fine iron powder and iron pieces mixed in raw materials. In this device, a plurality of through-tubes 12 made of a non-magnetic material penetrating through the de-ironing chamber are disposed at a required interval in the de-ironing chamber 11, and a rod-shaped magnetic element is slidable in the through-tube 12. Non-magnetic material in which a magnetic material such as fine iron powder or iron pieces mixed with the raw material is disposed inside the rod-shaped magnetic element when the raw material flows down in the rectangular cylindrical iron chamber 11 The magnetic material is removed by adsorbing the magnetic material on the surface of the penetration tube 12 made of. By the way, in the case of the above-mentioned automatic iron removal device, the rod-shaped magnetic element is periodically moved from the inside of the penetration pipe 12 located in the iron removal chamber to the outside of the iron removal chamber so that no magnetic force acts on the outer surface of the penetration pipe 12. It is necessary to remove the magnetic material such as fine iron powder or iron pieces adsorbed on the through tube 12. For this purpose, sliding rods 13 are extended on both sides of each magnetic element, the ends of the sliding rods 13 are fixed to a common end plate 14, and the end plates 14 are operated by a hydraulic cylinder 15. I have.

However, in the case of the above-mentioned automatic iron removal device,
Due to the movement of the dedicated magnetic element from the inside of the penetration pipe 12 located in the iron removal chamber to the outside of the iron removal chamber, the total length of the apparatus (including the sliding rod 13) in the sliding direction of the magnetic element is The length of the device itself is three times or more, which makes the entire device large and requires a large installation space. Further, since it is necessary to slide the plurality of sliding rods 13 uniformly, the driving mechanism becomes complicated, and the arrangement of the through pipes 12 is reduced due to the arrangement of components such as the fluid pressure cylinder 15. The degree of freedom is low, and for example, it was practically difficult to arrange the through pipes 12 in a grid pattern by alternately changing the arrangement direction of the upper and lower through pipes 12.

[0004]

SUMMARY OF THE INVENTION In view of the above problems of the conventional automatic iron removing apparatus, the present invention makes the entire apparatus compact,
Moreover, it is an object of the present invention to provide an automatic iron removing device which can simplify the drive mechanism and has a large degree of freedom in the arrangement of the through pipes.

[0005]

In order to achieve the above object, the present invention provides a plurality of through pipes made of a non-magnetic material and penetrating through the deironing chamber at a predetermined interval. In an automatic iron removal device in which a dedicated magnetic element is slidably inserted into the through pipe, the magnetic element is formed to have substantially the same length as a deironing chamber through which the through pipe penetrates, and Is constituted by a rigid tube having a length approximately twice as long as the magnetic element and having both ends sealed by a tube end member, and the through tube being provided outside the tube end member via the tube end member. A pressure fluid supply / discharge means for selectively supplying or discharging a pressure fluid for sliding the magnetic element is fixed to a connection port formed on the peripheral surface of both pipe end members while being fixed to the face plate with bolts. It is characterized by being connected.

[0006]

According to the automatic iron removing device configured as described above, when the raw material flows down in the de-ironing chamber, the magnetic material such as fine iron powder or iron piece mixed in the raw material is penetrated by inserting the rod-shaped magnetic element. The magnetic material is removed by adsorbing on the outer surface of the tube. In addition, when removing magnetic materials such as fine iron powder and iron pieces adsorbed on the through pipe, the pressurized fluid supply / discharge means supplies the pressurized fluid into the through pipe or discharges the pressurized fluid from the inside of the through pipe so that the penetrating fluid is discharged. The rod-shaped magnetic element in the pipe is moved so that no magnetic force acts on the outer surface of the through pipe in the deferring chamber. As a result, the magnetic material such as fine iron powder or iron pieces adsorbed on the through tube can be easily and completely removed. Thereafter, by performing the reverse operation by the pressure fluid supply / discharge means, the rod-shaped magnetic element in the through tube is moved, and the iron is removed by applying a magnetic force to the outer surface of the through tube in the iron chamber.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiment. The iron removal chamber 1 is partitioned into a rectangular cylinder by the iron removal chamber wall 10, and a flange 10 a for connecting to a raw material pipe (not shown) is provided at an upper end and a lower end of the iron absorption chamber wall 10. A peep window 10b is provided on the side surface of the iron removal chamber wall 10 as required.

In the iron removal chamber 1, a plurality of through pipes 2 are arranged in a zigzag manner so as to penetrate through the iron removal chamber 1. The method of arranging the through tubes 2 is not limited to the above. For example, the arrangement direction of the upper and lower through tubes 2 may be alternately changed and arranged in a lattice, and may be freely selected according to the target raw material. it can. The through pipe 2 is made of a stainless steel pipe or a pipe body made of other non-magnetic material having wear resistance.

The through pipe 2 penetrates through the iron removal chamber 1 and is fixed to the iron iron chamber wall 10 by a fixing member 10c.
The outer peripheral surface is fixed while maintaining a sealed state, and is disposed so as to extend to the one side outside the iron-ironing chamber 1 by substantially the length of the iron-removing chamber 1 itself. Therefore, the penetration pipe 2 is the length of the iron removal chamber 1 itself in the sliding direction of the magnetic element 3 (the length of the dedicated magnetic element 3 slidably inserted into the penetration pipe 2).
About twice as long as. Further, pipe end members 4 are fixed to both ends of the penetrating pipe 2, and the pipe end member 4 and an end face plate 5 provided outside thereof are fixed with bolts 5a, so that a plurality of adjacent penetrating pipes 2 can be formed. Fix each other. A buffer member 6 made of an elastic material such as rubber is provided inside the tube end member 4 in the through tube 2. The outer circumference of the automatic deironing device including the through pipe 2 is covered with a cover 7.

A dedicated magnetic element 3 slidably inserted into the penetrating tube 2 comprises a plurality of magnets 31, a core material 32 for fixing the magnets 31, and end members 33a, 33b. The seal member 8a disposed on the outer peripheral surface of the end members 33a and 33b of the element 3 slides inside the through tube 2 while maintaining the sealed state, that is, the through tube 2 is a kind of cylinder, The element 3 is configured as a kind of piston.

A pressure fluid supply / discharge means (not shown) is connected to the connection ports 4a of the pipe end members 4 provided at both ends of the through pipe 2.
The magnetic element 3 is slid by supplying pressure fluid into the through tube 2 or discharging the pressure fluid from the through tube 2. The through tube 2 and the tube end member 4 are fixed to each other by caulking, screwing or the like by disposing a seal member 8b so as to maintain the sealed state in the through tube 2. In this case, high-pressure air is usually used as the pressure fluid, but pressure oil, inert gas, etc. can be freely selected according to the target raw material, working environment, and the like.

In this case, by connecting the connection ports 4a of the pipe end members 4 of the plurality of through pipes 2 to each other,
The magnetic elements 3 in the plurality of through tubes 2 can be simultaneously operated by one pressure fluid supply / discharge means. Further, it is desirable to provide a check valve 9a and a flow rate adjusting valve 9b in the pressure fluid flow passage 9 that connects the connection port 4a of the pipe end member 4 and the pressure fluid supply / discharge means.

When the magnetic material such as fine iron powder and iron pieces mixed in the raw material is removed by using the automatic iron removing device configured as described above, the pressure fluid supply / discharge means is operated and both ends of the penetration pipe 2 are operated. The pressure fluid is supplied from the connection port 4a of the pipe end member 4 provided in the portion into the through pipe 2 on one side while sandwiching the magnetic element 3 and the pressure fluid is discharged from the inside of the through pipe 2 on the other side. To move the magnetic element 3,
The magnetic element 3 is located in the through pipe 2 on the iron removal chamber 1 side so that magnetic force acts on the outer surface of the through pipe 2 on the iron removal chamber 1 side. Then, by flowing down the raw material, the magnetic material such as fine iron powder or iron pieces mixed in the raw material is adsorbed to the outer surface of the through tube 2 to remove the magnetic material from the raw material. When removing magnetic substances such as fine iron powder and iron pieces adsorbed on the outer surface of the penetrating pipe 2, the pressure fluid supply / discharge means is operated in the reverse order, ie, both ends of the penetrating pipe 2. The pressure fluid is discharged from the inside of the through pipe 2 on one side with the magnetic element 3 sandwiched between the connection port 4a of the pipe end member 4 provided on the above portion, and the pressure fluid is supplied into the through pipe 2 on the other side. By doing so, the magnetic element 3 is moved so that the magnetic element 3 ′ is located in the penetration pipe 2 on the opposite side of the deironing chamber 1 (see FIG. 1), and the magnetic element 3 ′ is attached to the outer surface of the penetration pipe 2 on the iron chamber 1 side. Avoid magnetic force. As a result, it is possible to easily and completely remove the magnetic material such as fine iron powder or iron pieces adsorbed on the outer surface of the through tube 2. Thereafter, the magnetic element 3 ′ is moved by operating the pressure fluid supply / discharge means in the reverse direction, and the magnetic element 3 is positioned in the penetration pipe 2 on the side of the iron chamber 1, and the raw material is deironed. .

In this case, a buffer member 6 is provided inside the pipe end member 4 in the through pipe 2, and a pressure fluid flow path for connecting the connection port 4a of the pipe end member 4 and the pressure fluid supply / discharge means. By providing the check valve 9a and the flow rate regulating valve 9b in 9, it is possible to absorb the impact force of the magnetic element 3 sliding in the through pipe 2, thereby preventing the device from being damaged or broken. And noise can be reduced.

[0015]

According to the present invention, since it is not necessary to provide a sliding rod for sliding the magnetic element, the drive mechanism is simplified, and the durability of the device can be improved. Initial costs and running costs can be reduced. Further, since the through pipe is fixed to the end face plate provided on the outer side thereof with the bolt through the pipe end member that seals the through pipe, the through pipe is accurately and firmly attached to the end face plate. Can be attached to. Further, since the pressure fluid supply / discharge means for selectively supplying or discharging the pressure fluid in order to slide the magnetic element is connected to the connection ports formed on the peripheral surfaces of both pipe end members, The length of the penetrating pipe including the magnetic element can be arranged with the piping of the pressure fluid supply / discharge means stored inside the end plate, and it is not necessary to provide a sliding rod for sliding the magnetic element. Coupled with the fact that the length can be shortened, the shape of the entire device including the pipe can be made compact. Furthermore, the arrangement of the penetration pipes can be freely selected according to the target raw material.

[Brief description of the drawings]

FIG. 1 is a view showing a through tube and a magnetic element of the present invention.

FIG. 2 is a diagram showing a main part of a through tube and a magnetic element of the present invention.

FIG. 3 shows an automatic iron removing apparatus of the present invention, (a) is a front view, and (b) is an I-I sectional view thereof.

FIG. 4 is a plan view of the automatic iron removal device of the present invention.

FIG. 5 is a view showing a conventional iron removal device.

[Explanation of symbols]

 1 De-ironing chamber 2 Penetration pipe 3 Magnetic element 4 Pipe end member 4a Connection port 5 End face plate 5a Bolt 6 Buffer member 8a Seal member 8b Seal member 9 Pressure fluid flow passage 9a Check valve 9b Flow control valve

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-4-150960 (JP, A) JP-A-62-240065 (JP, A) JP-B 48-35659 (JP, B1) JP-B 7- 16628 (JP, B2) JP 5-25551 (JP, B2)

Claims (1)

(57) [Claims] 1. A plurality of penetrating pipes (2) made of a non-magnetic material and penetrating the inside of the deferring chamber (1) are arranged at required intervals, and the penetrating pipe (1) is provided. 2) In an automatic iron removal device in which a bar-shaped magnetic element (3) is slidably inserted into the interior, substantially the same as the iron removal chamber (1) through which a through pipe (2) passes through the magnetic element (3). With the length of
The penetrating pipe (2) is made of a rigid pipe having a length approximately twice as long as the magnetic element (2) and having both ends sealed by a pipe end member (4). And a pipe end member (4), which is fixed to an end face plate (5) provided on the outside thereof with bolts (5a), and a supply or supply of a pressurized fluid for sliding the magnetic element (2). An automatic iron removing device, characterized in that a pressure fluid supplying / discharging means for selectively discharging is connected to a connection port (4a) formed on the peripheral surfaces of the both pipe end members (4).