JPS5932897A - Processing device for liquid waste containing radioactive material - 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 The present invention relates to a treatment device for treating waste liquid mainly composed of organic solvents containing radioactive substances, such as liquid scintillators used in radioisotope research, experiment management, hospitals, etc.

Conventionally, liquid scintillators used in radioisotope research, experiment management, hospitals, etc. are made by dissolving a luminescent substance such as delfemil in a solvent such as toluene, benzene, or cylene.
A finely tuned activator is added to increase the luminescence intensity by 1-1 or change the emission spectrum, and the measurement sample is mainly mixed in a liquid scintillator. ) J (Measures feather ability, but used liquid scintillators contain radioactive substances exceeding the 11'F capacity limit,
For example, 3II and 14 (N) were stored in each designated tank, and 1J (7) was placed in the state of 1 and 11 field introduction, and other J; Hospital fluids containing/7
There are 1 ton of waste and 341 wastes are incinerated in air furnaces and firebrick furnaces, but these furnaces require large equipment and completely vaporize and burn the waste liquid. However, there were drawbacks such as generation of harmful soot and damage to the inside of the furnace.

The present invention was invented in consideration of one or more of the following points, is compact overall, does not take up much space, and is capable of vaporizing the liquid to be treated and vaporizing the nuclear vapor.
It is a device that evenly mixes the gas of q71'f with air to achieve complete combustion, and lt' containing radioactive materials.
In the processing device that vaporizes liquid A, mixes 4 and 4 in this 1/ζ, and sends it to the combustion chamber where the catalytic converter M is returned for complete combustion. A vaporizer with an air flow hole and an outlet hole.
A mixing cylinder connected by a tube is housed at the end of a transfer tube with ?), ?F air [J? A P gas mixing device is installed, and the pressure inside and above the mixing cylinder is increased by 1-[7.
Mix the vaporized gas that has come in with the air that has flowed in from the air vent [
7. The present invention aims to provide a system that completely and stably burns waste liquid within the combustion chamber by transferring the entire air-mixed gas to the combustion chamber.

An embodiment of the present invention will be described below with reference to the drawings. In the figure, (1) shows a main body of a processing apparatus, a vaporizer (2) inside which vaporizes the liquid to be processed, and a wall on the side of the vaporizer. Arrangement [7 Mixing device 1Iv (3) communicating with the vaporizer, and the mixing device (3)
J - A connecting combustion chamber (4) and an inner chamber (5) following the combustion chamber.
) has a mixing device (3) that heats the mixing air to be sent.
The heat exchanger (6) is provided with a heat exchanger (6) that communicates with the inner chamber of the heat exchanger, and a liquefaction section (7) that cools and liquefies the gas after combustion.

Loaded inside, inside circumferential side] Threaded guide (≦1)
A heater 0 (1 and a heat insulator 4
Set up A(1,1)! 1, No holidays (1) external 1 + (
The two-necked treated liquid tank (1) is connected to the inlet pipe (7) with the tip of the inlet pipe facing into the spiral guide (0).

Mixing device fFi (311r, A constricted part Oh is provided, and the upper part of the constricted part Oh is o-7' diameter 6. Gradually expands to a large extent, and the upper part is opened 171, 1-L-c open 1.f? , transfer ti' connected to the combustion chamber (4)
(I Ino Fr!Li: section (18) accommodated inside I-2, 7
Bt part 1lli wall L, 2 doors air outlet 0 (e 'to,'
N'! Gerto and BC? fi+; combination n (lljl
]Ii'(part Ic% cation'a< (2), 1-tangent/i-
1-J-ru tubule O) thickened [7 gkomono-C key].

Combustion, U (4) V Yu, I'' ni Kara Senkin 1 (-\hi・-ta I21), Noirta (3), touch Ql/layer +: %
(7) 1llri 1ffli', place L f, = also (
7)-C11 part (7) Enter D H from fr, ”,
,,'p-Ki? fl:te-ka, (k+, he
After heating at 21 and removing impurities at zJ, the tactile layer is lowered into the pores and burned at ze.

Heat exchanger (61rj, placed at the target of the combustion chamber (4) 2
, an inner chamber (5) through which the high-temperature gas passes after combustion is provided inside, and the inner chamber is surrounded by an outer circumferential plate (A).
Form a space (5) between the handling hanger and the outer circumferential plate (2) Q. Fill this space Q, and connect the 1-air intake C blade and the air delivery (7).
[] Kanzenyaku, near the bottom of the 1111 transfer pipe <171,
Air mixing cylinder (1υ to l″iiJ, installed in the position 17) to the air supply pipe α for mixing and air supply between 1 and 1-1-J By connecting and preheating the mixed air, it can be easily mixed with vaporized gas.

II) J City''
sz) is also σ).

Liquefaction part (7ni, on the side of the inner room (5), own room (5),
A cooling water circulation pipe (41) is provided on the outside of the circumferential side, and the circulation pipe is connected to the cooling water , also the liquefaction section's 1st board I
'+1 degree inclined -C, equipped with a drain container at one end of the plan 1, drain collection tank Q9σ) connected to drain tube S&i'r, circulation vibrator e (I (inside) Cooling water is used to cool ψdl, and the melted combustion gas is collected [[]1. The opening and air-type blower ([on the other hand, there is an intake pipe (c) k/connection 1", and an air damper/wing is provided in the middle of the intake pipe).
) Check-branch, tick ′・;・-((・Enable adjustment of opening/closing)・-〇′) (7) Appropriately control the absorption 1i.

In addition, in the figure (41) Jr., /i-(
The bonder that sucks up the liquid to be treated (+6,
D n+ (6%-1111 V It; 2) Partition, c+q 1. iiG partition extends from Sazenai ♀('
-) Air ((1111 is an annular protruding baffle plate 112, the air entered from the air intake JL port (c) at the point wt - into the inner chamber)); The transition is complete.
Uchi' Hatake (5) Uchi and (7) 1 River's Sho 1 Tozo Tetsu 1 "jJ rate ρ'th one, (T1), (', I"2), ('
-1"3), (T4), (1',) N,〃, 14 degrees -1.:.-Lee.

Furthermore, in Fig. 3, there is a set C"5) in which 12 11 vaporizers are installed.
By convention, in this case, the thin tube 17j +/[cut], tsuku I4→, ■1, consider '60: tJ] exchange (
, 41 are set up, and the usage period 1-1. Switch the vaporizer
7, 51℃, 1-1t, and pay. When there are 7 solids in the vaporizer, use 9j IJi+-n-,t, ;:, switch the vaporizer and sweep 2.1-rali. It is possible to perform rapid continuous operation without stopping ';', and it is 1, f- for 7.1 and θ.

So 1, 2- is the liquid to be treated, 1+ (lρ- is the liquid syn-J
'L・-〃・-waste liquid folding-processing-Sairu vC1 pump 0
1) Created [Moe [7] treatment liquid pyri f12 inner 4y2 place J
'Introducing 111 liquid'! ``i(1:'J /hara vaporization e+
(2) (17) Introducing the liquid to the end of the (9) (9) in a spiral shape (#Z) and the liquid to be treated along the guide.
tζ, - descending (while penetrating into the vaporization part 4n (8) consisting of a porous proboscis, and being vaporized by the heat of the heater), it becomes a gas with a power of 71E, and this gas r;: i:
,,,h+1 and the thin tube 0 is ura- and the upper mixing end 1 (
oi -4"t). 1, 7P air from the transfer pipe (+7) n +, + (7P air flowing from the center &j, transfer pipe (17)
The inner periphery of the pheasant i part (18) of 1 and the mixing cylinder (1)
- then 11+1 o'clock V (=, air flow bid (14)...
Mixed 1 verse () 1 ◇ from i'lil i! L', noj
Pull it into the tank, enter the jet i, enter the jet, and mix the vaporized gas and f;- (-7,
l-f of υ! The gas mixed with the air coming out from +1 (1 part of the transfer tube 1.1 parts (1 volume) rises between the mixing tubes (l) and mixes with 1 loaf of air, and the first 1, where the mixing of
This 21'l, two mixtures (In this case, the air D (+! , the speed is high enough to mix for 1 minute, and the mixing density is t, I/(even.-
Then, it passes through the mixed gas transfer pipe (171).
) from the top, but at the bent part of the transfer tube) 1) When filtering, the second mixing is performed, and the gas mixture is completely mixed with 7 ft of gas, 1,
After removing impurities from the 5 filters (A), the catalyst layer (burned by 2 filters) is removed. .The high-temperature residue after combustion moves through the own chamber (5) of the heat exchanger (6) and is transferred to
, the cooling water of the liquefaction device (71K circulation (1:t vibe 01)) is cooled and liquefied (-1 and the recovery tank C■■ε
-Drop 1: Yes. +rv remove harmful substances'I1. jv
Open by suction i7.
, 1e (7') to external heki'l-temperature Jl2. . or,
71 is also heated with air for the table, and the outer periphery of the inner nitrogen (5) is heated with #II+1. Between the + and -1 width l'-1 north supply gap), connect the 11η transfer pipe (1 force end (ui) It to i
ff.
) enters the mixed gas (,1 height, heater c,!
l) Il weaken or l stop market, 1 also, l, yes. Heater υI) l/il at +tr at the beginning
-Complete combustion is carried out while heating the mixed gas, but the combustion
The t% force became a high pitched sound and passed through the inner nitrogen (5) (-2
When the vortex IIl of the mixed II'l air in the nitrogen chamber (A) is in the upper row, the temperature 111I-sensor (1'+1, (', I'2
) instruction f 1=-4-12+) KaJ la;71,
Blower (1'lf/koyo-, teJ, 4(he'1.t'
, All I gas is sucked and stable fr combustion condition! ] [1 as formula A (
Hold-o-... is also σ). Father? The gas flow can be reduced depending on the combustion state by adjusting the intestinal closure (11).

Internal vaporizer (2) and mixing device (old (3) crotch position or thin tube installation site, etc. C-1 Limited to the above actual/Kq example tY
For example, if the vaporizer (2) and the mixing device are reversely arranged,
I, or side by side fr:, h[, -teE are also good.

Waste liquid (waste liquid); liquid 1. If there is an uneven rq degree in the combustion chamber or in the gas mixture, e. Excessive combustion may occur, destroying the 4ε position, and other problems may occur, such as failure of combustion in low-concentration substances. In the present invention, the waste β11 containing the ostomate is vaporized, mixed with air, and then sent to a combustion chamber equipped with a catalyst for complete combustion. It is equipped with a vaporizer that vaporizes 4- and an air rAT personification and outlet hole, and a III'AL: vaporizer and
The mixing cylinder, which is connected to the pipe at the top and bottom, is
] is present (χ1) (the air mixture contained in the end of the tube is divided into three parts, and one part is taken from the vaporizer on the inside of the mixing cylinder and on the other hand). vaporized gas and air (
Since the air is mixed and the air mixture is transferred to the Hayabusa, the waste liquid in the liquid tank to be treated is caused by incorrect operation of the pump, etc. due to I/C. =
When Jl is supplied to the vaporizer, the thin tube is passed through the upper Jt, and the vaporized gas (7) is only in liquid form. Even if there is something mixed in, it will settle to the bottom. Then, when the vaporized gas is drawn to - and enters the mixing cylinder, air flows in from the air shoulder inlet of the mixing cylinder at Geno) i# and h, and among them, No. 1 and 11 are carried out f), 1. From the mixing cylinder to jJi. t-11
r By the way, the upper layer 17 has come between the transfer pipe and the mixing cylinder 7, t
The mixture of air and air is mixed into the combustion chamber without enveloping the liquid waste, and a stable combustion is achieved without destroying the gas. Treatment
It is possible to perform Fl + -, and it is possible to do 4 signs.

[Brief explanation of drawings]

Drawing t1 shows an embodiment of the present invention 1 also shows C), Fig. 1 is a longitudinal front view, 9fλ2 Fig. t, ↓ Enlarged longitudinal section of the mixing device i''t] In 1, Fig. 3 shows another embodiment This is a partial diagram showing the IHU body, (2) & is the vaporizer, (3) is the
, mixing device, (4) combustion chamber, (6) i, I heat exchanger,
(7) &::I liquefaction part, (R1r:I vaporization part agent, (9
) is a guide, (10). (21) is a heater, (14)
is an air inflow hole, (16) is a mixing cylinder, (17) is a transfer pipe,
(18) is the end of the transfer pipe, (19) is the air port, (23)
is the catalyst layer, (27) is the void, (p) air, person (1,,
(If i+, iit combination N<'+, (thaH!'
x iX i+'), ', + is the blower, (T1), (
T2), (T3), (T4), and (T5) indicate temperature sensors.

Claims (1)

[Claims] A vaporizer that vaporizes the waste liquid within the apparatus main body, which vaporizes the waste liquid containing radioactive materials, mixes air with it, and then sends it to a combustion chamber equipped with a catalyst for complete combustion. An air mixing device is provided with an air inlet hole and an outlet hole, and 1) a 475 joint tube connected to the vaporizer No. 11 by a thin tube is accommodated in the end of the transfer tube that fixes the air port. , the inside of the mixing cylinder and the vaporized gas accumulated from the carburetor on the one hand, and the air flowing in from the air port, are completely mixed, and the air-mixed gas is transferred to the combustion chamber. Equipment for treating waste liquid containing radioactive materials.