JPS6080796A - Solidifying treater for radioactive waste liquor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] LJ of the present invention, 1 (stick-shaped or slurry-like anti-resistance waste material) is soaked into a cartridge with good water absorption, and then υ ■Assimilation treatment methods for liquids (including slurry liquids) currently include: The main method of vitrification is currently being researched. In this process, the waste liquid or its i-condensate is directly injected into the melting furnace together with the glass raw materials.
The molten glass surface (10,00~1100℃
) and boils violently, producing a large amount of mist and fine powder. These are discharged from the melting furnace along with water vapor and air, causing problems such as a large amount of fine powder depositing in the exhaust gas treatment equipment, causing blockages and increasing radioactivity. Furthermore, there is a problem in that the heat is taken away by the steam light supplied to the melting furnace, resulting in a decrease in melting ability. On the other hand, in the latter method, dry calcining methods such as []-]Cree kiln method (fluidized bed method spray) are used, but all of them produce a large amount of fine powder and have the same problems as above. However, the disadvantage was that the equipment was complicated.

In addition, as a method of assimilating mid- to low-level radioactive waste liquid (including slurry liquid) that is dead or dead from the nuclear power station Hide, currently, methods of fixing it with asphalt, Romento, etc. are used, but even more It is also conceivable to use assimilates made from high-quality materials such as glass. However, this also poses the same problem as the assimilation treatment of high-level synthetic waste liquid, so it is a challenge to find a method that generates less fine powder.

However, as one method of solidification treatment using glass melting, a method using a water-absorbing cartridge made of glass fiber or the like has been proposed (Japanese Patent Application Laid-Open No. 53175).
72 bow). Technique 1.1j disclosed here is to absorb the liquid θJ l (t 176) into the cartridge, apply X microwave to it in the drying oven, and apply the C car 1-
The dried product is transferred onto the ridge, and then the car 1 to the ridge containing the dried product is transferred to the furnace 1 (furnace) and melted to incorporate the waste from the QJ process. It produces a crow substance. In other words, assimilation treatment of educational waste liquid 1
,,: In addition to the drying oven, a separate melting oven should be installed ().
However, the disadvantage was that the equipment was placed in the apse, making it expensive and expensive. In addition, the supply direction of the molten metal 1: installed in the front stage of the furnace, C in the microwave drying furnace, and the car 1 helicopter is discharged in the opposite direction, so that during drying and When the dried product was melted (=lW), the cartridge was easily clogged with J8 dust, etc., and there was also a drawback that the waste residue could not be smoothly discharged.

The purpose of the present invention is to eliminate the drawbacks of the prior art as described above, and to facilitate waste removal by reducing the generation of fine powder (nominally caused by J) in the assimilation process such as melting and sintering of radioactive waste liquid. [11] [J, eel device that can greatly simplify the star and the furnace itself]
It's about making an offering.

In order to achieve such an object, the present invention provides a furnace main body in which a material to be treated in which radioactive waste liquid has been absorbed by a water-absorbing cartridge 1-ridge is heated, and a supply pipe from the car 1 to the ridge is connected to the furnace body.
Trisoji extrusion equipment, e-liquid supply piping, exhaust gas pipe, etc. (=
I 89. This solidification treatment apparatus for radioactive waste liquid is constructed in such a manner that an exhaust gas pipe is connected to the upper part of the furnace main body.

The present invention will be further explained below with reference to the drawings. FIG. 1 is an explanatory diagram showing an example of the present invention. This equipment consists of a furnace body 1 in which 1Jl of the workpiece is heated and melted, and the upper part of the furnace body A workpiece supply path 2 which communicates and extends substantially horizontally, and a car 1 to ridge llt supply pipe 3 and a car 1 to ridge extrusion which are located on the proximal end side of the workpiece supply path 2 (,!2) are connected and extend substantially horizontally. A device 4, a waste liquid supply color scheme 5 connected to the intermediate part of the material supply path 2, and a reactor water 1 hole 1.
connected to the upper part of the gas pipe 6 and the microphone [l
The waveguide consists of τ(・7 and l)r +. Cartridges 1 to 8 (J, I'ilJ, for example, glass fibers etc. Good LF 81.'
■It is a II aggregate and has a composition determined from the treated waste liquid composition and the final glass composition. This no-no cartridge 8 is sent to the workpiece supply path 2 through the car 1 to the cartridge supply piping 3, and is horizontally pushed out into the workpiece supply path 2 by the car 1-ridge extrusion device 4 and then slipped out. ).

The cartridge 8 that has reached just below the waste liquid supply pipe 5 also contains a slurry-like liquid containing a large amount of particulates, etc. ) is impregnated to such an extent that it does not seep out, forming the object to be treated 9. (After -, the car 1 is fed into the ridge extrusion device 1,
From the microphone (not shown) to the waveguide 7-J
t' J) ■ Thermal melting due to microwaves applied
'I'm going to have a hard time.

The 1 no 1 sword to be removed is passed through the exhaust gas pipe 6 -) -j
The molten material formed in the furnace main body 1 is fed to the Jjl gas processing system (not shown) and processed using a lever. 10) and is taken out of the T1 main body 1. With such a device, nonvolatile components such as nuclear fission products, actinide elements, and heavy metal elements contained in the waste liquid can be immobilized. In addition, although gases such as water vapor and generated dregs are absorbed (because the filtration effect of the Kerr 1-Rizji white body is used, which does not pass through the ladle, the amount of light from the dust inside the furnace body is extremely small). In addition, it is possible to keep the amount of fine powder flying (1Jf) and entrainment into the exhaust gas extremely low, and it is possible to dry and melt 44 pieces of material in one bottle of reactor water. Processing of single waste HQ By converting one culm and the furnace itself into an Oi1 cable, it is possible to easily process the waste slag.
When microwaves are used to heat the object to be treated during moxibustion, the heat is released from the inside of the cartridge, so the time required for melting can be significantly shortened. The main point of JJ is that the device can be extremely simplified.

Car 1-Ridge's (roj old...') departure (1, basic l life 1
Stop C required A1 Article A1,! The straw has water absorption 11 and filtration performance (Yuka IR treatment [Raw etc. 1!1]) and the award was decided (, Yoyoi.

1. When using microwave as a heating means, JJ
-1 ~ In order to prevent microwaves from leaking from the supply system of the cartridge, for example, a circle (in the case of type 1, the diameter is approximately 1
It is desirable that it be about 0 cm or less. In addition, the composition of Kerr 1 heritage is kl, the type of solidified material is I, i5
You can select it as appropriate.

FIG. 2 shows another embodiment of the invention. In this example, Mark [1 wave! In addition to Jll heating, direct ink type Jill heating is also used. An electrode 1'1 is formed in the lower part of the inside of the furnace body 1, and the glass is melted mainly by direct current supply. (This is a configuration in which auxiliary heating is performed using 21 waves. Of course, in this case, the cartridge is melted by heat transfer from the sword lath that is heated to the instep without using microwaves.) Note that the other configurations are the same as in the case of FIG.

By the way, as a result of investigating the state in which a cartridge impregnated with mulberry coagulate (educational waste liquid) was dropped into a glass melting device as shown in Fig. 2 and heated to melt Eil+, it was found that
It was obvious that the suspected oil was gradually melting without a single drop coming out. In addition, generation of fine powder was confirmed at this time.

The present invention can be applied to S combinations other than glass assimilation treatment as described above. In the furnace main body, one piece to be processed is not applied to the press piston.
The present invention is designed so that a large amount of fine powder will not be generated due to the heat generated by the heat (as described in the following). This is a waste oil processing equipment, in which the treated material is heated to 111I.The treated material is connected to the furnace body, and the car 1 to the ridge supply piping is co-located with the car 1 to the ridge extrusion.) Waste: 1'2
Supply piping, etc. Body-C mounting 1 (71) connected
Moreover, there is one furnace for drying and melting (the old Munote equipment has a very simple +1-i groove).
There is no helical product f'' and I nika 1-ridge.
6 (Feed the soaked cartridge of 12 directly to the reactor main body, and use a JJI waste pipe or 1 reactor water at the top n Direct II
/ Is there a contingency that can be made (-,) IJ that can be smoothly and easily filled with JI debris, or IU that can significantly simplify solidification as a whole? It adds up to 1q of the effect of Jl.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of the solidification device according to the present invention, and FIG.・・・Processing object Ij1.Jirge, 3.
...Tsuno-1 ~ Ritsuji supply piping, /1... Cartridge extrusion station opening, 5... Waste liquid supply distribution room, 6... IJ1 cassette, 7... Ma, Microwave waveguide answer, 8. ...Car 1~
Ritsuji, 9...Product to be processed, 10...Crow (Made-up nozzle.Special feature (Deconduration human motion) J furnace/(b twist) Development small business group
Rito Riit <l:, 1. If same rough book
Tomo 4 Nisuke Figure 1 Figure 7 Figure 2

Claims (1)

[Claims] 1. A furnace body in which the waste liquid is absorbed into a 1!4 car [ridge] and the treated material is heat-treated, and the treated material (1 ( a supply path, a cartridge supply pipe and a cartridge extrusion device located on the proximal end side of the workpiece supply path, and a pipe connected to an intermediate portion of the workpiece supply path; This is a solidification processing device that uses the pipes connected to the upper part of the furnace body and the force-roaring.