JP4321807B2 - Foreign matter removal equipment from incineration fly ash - Google Patents

Description

  The present invention relates to an apparatus for removing foreign matter from incineration fly ash used when transporting incineration fly ash discharged from an incineration plant for resource recovery.

  A large amount of incineration residue, especially fly ash, is generated from municipal waste incineration equipment, and it is difficult to dispose of it. Conventionally, these fly ash has been disposed of in landfill by solidification treatment, chemical treatment, or melting treatment.

  However, since there is a limit in landfill processing, the recycling of these materials has been studied, and reuse as a raw material for ordinary cement by washing with water or as an eco-cement to be used as it is has been realized. In addition, there is no particular patent document for the present invention.

  A problem in the above reuse is foreign matters such as solid matter mixed in the fly ash. That is, in the water washing facility, these foreign substances not only hinder the operation of the metering feeder, but also settle in the dissolution tank or cause clogging of pipes and pumps, which is an obstacle to a series of operations.

  The present invention has been made to solve the above-mentioned problems, and by collecting foreign matter and solid matter in the fly ash, it is possible to prevent equipment failure of the recycling facility and prolong the life of the equipment, and to improve the operation efficiency. It is an object of the present invention to provide a foreign matter removing apparatus that contributes to the improvement of processing capability.

Foreign matter removing apparatus from incineration fly ash according to claim 1 of the present invention, the incineration fly ash with sucking through the air transport pipe, configured to remove foreign matter provided foreign substance removing means in the middle of the air transport pipe In the apparatus for removing foreign matter from incinerated fly ash, the foreign substance removing apparatus has the following components (a), (b), (c), and (d).
Record
(A) A cylindrical upper case 1 as a main body and a cylindrical lower case 2 as a main body are integrally formed, and an inlet pipe 9 and an outlet pipe 10 are opposed to the side surface of the upper case 1. And a first flow path that flows horizontally in and out of the inlet pipe 9 and the outlet pipe 10.
(B) a second portion that is input from the inlet pipe and is discharged via the discharge chute 8 provided at the lower portion of the lower body case 2 outside the first flow path without passing through the output pipe. Flow path.
(C) At the upper peripheral edge of the upper case 1, the left and right two side surfaces that are perpendicular to the first flow path are the starting points of the upper peripheral edge, and the lower case 2 is close to the outlet pipe. A wire mesh 12 having two wire mesh guides 11 inclined at the two left and right end points, respectively, and capable of being inserted / removed along the wire mesh guide 11.
(D) A partition plate 13 provided at the center position of the inlet pipe 9 and dividing the first flow path into left and right parts.

  As described above, according to the present invention, by collecting foreign matter and solid matter in fly ash, it contributes to the improvement of operation efficiency as well as the prevention of equipment failure of the recycling facility and the extension of the life of the equipment. It leads to improvement of.

  FIG. 2 is a diagram for explaining a usage mode of the apparatus for removing foreign matter from incinerated fly ash according to the present invention. For convenience of explanation, FIG. 2 will be explained. First, fly ash discharged from an incineration facility is accumulated at a predetermined location of the facility. A state is shown in which a vacuum vehicle 100 for collecting this arrives at this collection point.

  Reference numeral 200 denotes an accumulation point, and the fly ash discharged from the hopper 201 and the like inside through the vacuum device 202 is connected to the vacuum pipe 203 together with the air flowing in from the rear of the vacuum device by suction of the vacuum vehicle 100. When passing and loading on the vacuum vehicle 100, a sufficient space 204 is secured at a predetermined position between them to collect foreign matters such as solid matter mixed in the fly ash. The space may be any location as long as foreign matter can be easily taken out.

  The fly ash transportation from the incineration plant to the cement factory is carried out by two types of vehicles, vacuum cars and jet pack cars. Then, the vacuum vehicle is sucked and loaded from the incineration site by piping, and foreign substances are removed at the midway position (the removal device will be described later), and discharged by damping by pressure feeding. In addition, the jet pack car is loaded from the tank by natural fall, and discharged without dumping by pressure feeding. In addition, the air transportation system of the loaded fly ash can be shared by the same pipe.

  FIG. 1 is a configuration diagram of an embodiment showing a foreign substance removing device, in which (a) shown on the upper side shows a plan view cross section and (b) shown on the lower side shows an elevational cross section. In FIG. 1, the main body is composed of one main body upper case and two main body lower cases. 3 is a main body upper flange, and 4 is a main body lower flange, which are connected to a corresponding one-touch inspection port 7 and discharge chute 8 by a closing flange 5 and a discharge flange 6. 1 has a structure in which the pipe diameter of the upper case of the main body is made larger than that of the vacuum pipe, the flow velocity at the time of inflow of fly ash is slowed, and the mesh opening area is set larger than the cross section of the inlet.

The main body upper case 1 is provided with an inlet pipe 9 on its side surface, and similarly provided with an outlet pipe 10 on the opposite surface. The inlet pipe 9 and the outlet pipe 10 form a horizontal flow path. 11 is a wire mesh guide, the upper part is the diameter position of the upper case of the main body and is provided on the right and left sides in the direction perpendicular to the flow path, the lower part is provided on the downstream side along the flow path, and the vertical position is below the upper point. Is an inclined position shifted in the flow path direction.

  Accordingly, the wire mesh 12 inserted into the wire mesh guide 11 from above is inclined so as to be detachable. A partition plate 13 is provided along the flow path in the diameter portion at the center position of the inlet pipe 9 and has a function of dividing the flow path. The flow direction end of the partition plate is fixed by wear-resistant welding 14. Reference numeral 15 denotes a socket from which high-pressure air flows.

  Next, the operation will be described. First, the suction of the vacuum wheel causes air to flow in from the rear of the vacuum device, resulting in a negative pressure inside. Thereby, the fly ash discharged | emitted from the apparatus for vacuums is attracted | sucked and flows in from the inlet A to the exit B direction. The fly ash that flows in here rushes into the wire mesh 12 while being divided into left and right by the partition plate 13, and those having a predetermined particle diameter or less pass through the wire mesh 12, are discharged from the outlet B, and are loaded on a vacuum vehicle.

  At the same time, foreign particles having a particle size of a predetermined size or more are deposited on the accumulation portion above the discharge chute 8 according to the flow path F without passing through the wire mesh. Therefore, there are two types of foreign matter to be discharged, one that collides with the wire mesh and falls, and the other that must be dropped due to its weight from the beginning. If fine powder fly ash adhering to the accumulated foreign matter or solid matter or fine powder fly ash accumulates on the accumulation part, high-pressure air is sent from the socket 15 to stir the fine powder fly ash and pass through the wire mesh 12. Let As the flow of fly ash, there are a transport flow D, a separated transport flow E, and a foreign solid flow F.

  As a countermeasure against wear of the collision part due to inflow of fly ash, the tip of the partition plate 13 and the wire mesh guide 11 are subjected to wear-resistant welding 14. Further, the wire mesh 12 has a structure that is inserted into the wire mesh guide 11 from above, and when worn, it can be easily replaced by removing the closing flange 5 on the upper case of one main body. Therefore, since the wire mesh is removable, the mesh opening can be arbitrarily set. In addition, when the metal mesh 12 is clogged, it has a structure that can be cleaned from the one-touch inspection port 7 corresponding to the closing flange 5 on one main body upper case.

  In the above description, it has been explained that the foreign matter is removed when loading in the incineration site with a vacuum vehicle, but the present invention is not limited to this, and may be performed at the time of discharge after arrival at the cement factory. .

  It is intended to collect foreign substances in fly ash and recycle them. It can be used for recycling as well as the disposal of garbage, which has recently become a problem, and it can be used effectively for the local community. The problem can be solved.

Configuration example of foreign material removal device Diagram explaining how to use this device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body upper case 2 Main body lower case 3 Main body upper flange 4 Main body lower flange 5 Closing flange 6 Discharge flange 7 One-touch inspection port 8 Discharge chute 9 Inlet pipe
10 Outlet pipe
11 Wire mesh guide
12 Wire mesh
13 Partition plate
14 Wear resistant welding
15 socket

Claims (1)

In the foreign matter removal apparatus from the incineration fly ash configured to suck the incineration fly ash through the pneumatic transport pipe and provide foreign matter removal means in the middle of the pneumatic transport pipe to remove the foreign matter, the foreign matter removal apparatus includes: An apparatus for removing foreign matter from incinerated fly ash, comprising the following components (a), (b), (c), and (d) .
Record
(A) A cylindrical upper case 1 as a main body and a cylindrical lower case 2 as a main body are integrally formed, and an inlet pipe 9 and an outlet pipe 10 are opposed to the side surface of the upper case 1. And a first flow path that flows horizontally in and out of the inlet pipe 9 and the outlet pipe 10.
(B) a second portion that is input from the inlet pipe and is discharged via the discharge chute 8 provided at the lower portion of the lower body case 2 outside the first flow path without passing through the output pipe. Flow path.
(C) At the upper peripheral edge of the upper case 1, the left and right two side surfaces that are perpendicular to the first flow path are the starting points of the upper peripheral edge, and the lower case 2 is close to the outlet pipe. A wire mesh 12 having two wire mesh guides 11 inclined at the two left and right end points, respectively, and capable of being inserted / removed along the wire mesh guide 11.
(D) A partition plate 13 provided at the center position of the inlet pipe 9 and dividing the first flow path into left and right parts.

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