Summary of the invention
the problem that invention will solve
But, in the treatment technology described in above-mentioned patent documentation 1, for carrying out the hydrothermal treatment device of high temperature high pressure process and the dewatering unit for carrying out processed is provided separately.Thus, must guarantee that the installation space of this hydrothermal treatment device and dewatering unit is more spacious.
In addition, in the treatment technology described in patent documentation 1, after making the handling object things such as Organic mud become slurry like material in hydrothermal treatment device under subcritical state, utilize refrigerating unit to cool this slurry like material, and utilize dewatering unit to dewater.From above-mentioned situation: in patent documentation 1, the high-temperature high-pressure state in hydrothermal treatment device only utilizes in the generation of slurry like material, therefore effective utilization of the energy of the high-temperature high-pressure state of unrealized hydrothermal treatment device.
The present invention makes in view of foregoing, its object is to provide a kind of seek the space saving of device for carrying out hydrothermal treatment consists and processed and in processed, also effectively can utilize hydro-thermal treatment method and the hydrothermal treatment device of the high-temperature high-pressure state in hydrothermal treatment consists.
for the scheme of dealing with problems
In order to solve above-mentioned problem, achieve the above object, the feature of hydro-thermal treatment method of the present invention is, comprising: sub-critical treatment operation, and it is the hydrothermal treatment consists using the water vapor of subcritical state to carry out under subcritical atmosphere treated object; And dehydration procedure, it is separated by the liquid component in treated object to dewater under the subcritical atmosphere of having carried out hydrothermal treatment consists.
The feature of hydro-thermal treatment method of the present invention is, in the present invention as stated above, comprises de-liquid operation, and this de-liquid operation is discharged by the liquid component be separated after dehydration procedure.
The feature of hydro-thermal treatment method of the present invention is, in the present invention as stated above, comprises degassing process, and this degassing process is the pressure making the atmosphere pressure of treated object be reduced to the regulation less than the pressure under subcritical atmosphere after dehydration procedure.
In addition, the feature of hydrothermal treatment device of the present invention is to have: hydrothermal treatment consists parts, consists of and the water vapor of subcritical state can be used to carry out the hydrothermal treatment consists under subcritical atmosphere to treated object; With processed parts, consist of the processed can carried out under subcritical atmosphere and be separated from the treated object having carried out hydrothermal treatment consists by liquid component, processed parts are located at the inside of hydrothermal treatment consists parts.
The feature of hydrothermal treatment device of the present invention is, in the present invention as stated above, processed parts are configured to receive treated object, and hydrothermal treatment consists parts are configured to store the liquid component separated from treated object by the processed based on processed parts.In addition, it is characterized in that in the structure shown here, also there are the discharge opeing parts that the liquid component for being separated is discharged from hydrothermal treatment consists parts.Thus, when being taken out from device by treated object, can prevent the liquid separated in dehydration procedure from having an impact to treated object.
The feature of hydrothermal treatment device of the present invention is, in the present invention as stated above, hydrothermal treatment consists parts comprise exhaust portion, this exhaust portion is configured to be exhausted the gas of the inside of hydrothermal treatment consists parts, and is configured to utilize exhaust portion that the pressure of the inside of hydrothermal treatment consists parts is reduced to the pressure of regulation.
In the present invention, the subcritical state of water refer to temperature more than 100 DEG C less than 374 DEG C, pressure is in the state of more than 0.1MPa below 22.1MPa, when being Organic mud by object, preferably, temperature more than 120 DEG C less than 200 DEG C, pressure is at more than 0.2MPa below 1.6MPa.
the effect of invention
Adopting hydro-thermal treatment method of the present invention and hydrothermal treatment device, the space saving of the device for carrying out hydrothermal treatment consists and processed being sought, and also in processed, effectively can utilize the high-temperature high-pressure state in hydrothermal treatment device.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.It should be noted that, in whole accompanying drawings of following embodiment, identical or corresponding part is designated as identical Reference numeral.In addition, the present invention is not limited to following illustrated embodiment.
First, the hydrothermal treatment device of one embodiment of the present invention is described.The hydrothermal treatment device of this embodiment is represented in Fig. 1.
As shown in Figure 1, the hydrothermal treatment device of this embodiment is made up of hydrothermal treatment device main body 1 and hold-up vessel 2.Hydrothermal treatment device main body 1 is configured to be had: outer tube 3, vapor pipe 4, air suction pipe 5, liquid discharge pipe 6, cap 7, stationary fixture 8, rotating translation mechanism 9, axle 10 and dehydrating tube 11.Be provided with vapor pipe 21 and feed pipe 22 at hold-up vessel 2, the liquid discharge pipe 6 of hydrothermal treatment device main body 1 links up by valve 23 with the feed pipe 22 of hold-up vessel 2.And, be provided with delivery pipe 24 in the lower side of the gravity direction along hold-up vessel 2.
In the hydrothermal treatment device main body 1 with hydrothermal treatment consists parts, outer tube 3 has the part of drum, is provided with flange part 3a in one end by rotating translation mechanism 9 side of this drum.Cap 7 is fixed with one end of flange part 3a opposite side by stationary fixture 8 at outer tube 3.And, by dismantling this stationary fixture 8, cap 7 can be disassembled from outer tube 3.
In addition, the dehydrating tube 11 being located at the inside of outer tube 3 is the drums along outer tube 3, is formed with multiple opening portion 11b in this cylindrical portions.Be provided with piston 12 in the inside of this dehydrating tube 11, this piston 12 is partly along the cylindrical shape of the internal surface of above-mentioned cylinder.And axle 10 through one end of dehydrating tube 11 and flange part 3a, and links with this piston 12.Thus, form processed parts by piston 12 and dehydrating tube 11.In addition, outer tube 3 and dehydrating tube 11 be set to its length direction be level, the axle 10 parallel with this length direction length direction for gravity for substantially vertical horizontal, in the inside of outer tube 3, on gravity direction, cylindrical portions on the lower becomes the bottom of outer tube 3.
In addition, axle 10 is configured to one end bearing in rotating translation mechanism 9, can by rotating translation mechanism 9 translational movement along its length, and this axle 10 is also configured to be rotated centered by its axis.And, be configured to: by making axle 10 translation by rotating translation mechanism 9, piston 12 translation in dehydrating tube 11 can be made.In addition, be also configured to: by making axle 10 rotate about the axis by rotating translation mechanism 9, dehydrating tube 11 can be made to rotate centered by the axis that the center of the circular section at this drum is consistent with the axis of axle 10.
In addition, be provided with dehydrating tube cap 11a in the side by cap 7 of dehydrating tube 11, this dehydrating tube cap 11a can load and unload relative to dehydrating tube 11 and be linked to cap 7.Like this, dehydrating tube cap 11a is linked to cap 7, and when being dismantled from outer tube 3 by cap 7, also can be disassembled from dehydrating tube 11 by dehydrating tube cap 11a in the lump.
In addition, be provided with open and close valve 4a in one end of the outer portion gas side of vapor pipe 4, this open and close valve 4a is for by the inside of outer tube 3, via vapor pipe 4, externally gas, external device (ED) open.Exhaust portion is formed by this vapor pipe 4 and open and close valve 4a.Air suction pipe 5 is configured to suck water vapor from water vapor feedway (not shown).Liquid discharge pipe 6 is the pipe arrangements via feed pipe 22, the liquid of the inside of outer tube 3 being supplied to hold-up vessel 2 by valve 23.Discharge opeing parts are formed by this liquid discharge pipe 6 and valve 23.In addition, be provided with open and close valve 21a in one end of the vapor pipe 21 of hold-up vessel 2, this open and close valve 21a is used for the interior gas of hold-up vessel 2, external device (ED) to open.In addition, delivery pipe 24 is the pipe arrangements for externally being discharged by the liquid in hold-up vessel 2, is provided with the open and close valve 24a for externally being discharged by liquid in one end of the outer portion gas side of delivery pipe 24.
Then, the hydro-thermal treatment method employing the hydrothermal treatment device formed as above is described.Fig. 2 represents the schema of this hydro-thermal treatment method, and Fig. 3 ~ Fig. 7 represents the operating state of the hydrothermal treatment device in each operation of hydro-thermal treatment method.
As shown in Figure 2, in the hydro-thermal treatment method of this embodiment, first, sub-critical treatment operation (step ST1) is performed.As shown in Figure 3, in this sub-critical treatment operation, first, cap 7 and dehydrating tube cap 11a are disassembled, and using after the Organic mud 31 of an example as treated object is accommodated in the inside of dehydrating tube 11, close with cap 7 and dehydrating tube cap 11a, and utilize stationary fixture 8 make outer tube 3 with cap 7 tight joint and fix, thus by airtight for the inside of outer tube 3.
Then, open and close valve 4a and valve 23 are maintained closing condition, be certainly located at the water vapor feed mechanisms (not shown) such as outside, such as boiler and via air suction pipe 5, the water vapor of High Temperature High Pressure be supplied in outer tube 3.Here, in this embodiment, be set in more than 133 DEG C less than 212 DEG C from the temperature of the water vapor of water vapor feed mechanism supply, specifically, such as, be set as 210 DEG C.Thus, the inside of outer tube 3 is filled with the water vapor of the subcritical state of High Temperature High Pressure, and water vapor also enters into the inside of dehydrating tube 11 via the opening portion 11b of cylindrical portions, and is full of the water vapor of the subcritical state of High Temperature High Pressure in the inside of dehydrating tube 11.
In addition, in this high temperature and high pressure atmosphere, by making axle 10 around its axis oscillating by rotating translation mechanism 9, dehydrating tube 11 swings and stirs Organic mud 31, thus makes water vapor spread all over whole Organic mud 31.Thus, sub-critical treatment is carried out to Organic mud 31.In addition, in the bottom of outer tube 3, because the liquid components such as supplied water vapor accumulation, moisture spill from Organic mud 31, thus have process water 32 store.
Then, as shown in Figure 2, subcritical middle dehydration procedure (step ST2) is performed.As shown in Figure 4, in this subcritical middle dehydration procedure, by the subcritical state of the inner sustain of outer tube 3 and dehydrating tube 11 in High Temperature High Pressure, its pressure is at more than 0.1MPa below 22.1MPa, preferably, at more than 0.2MPa below 1.6MPa, more preferably, at more than 0.7MPa below 1.1MPa, specifically, be such as 0.9MPa; Its temperature is more than 120 DEG C less than 200 DEG C, and preferably, more than 160 DEG C less than 180 DEG C specifically, such as, is 170 DEG C.In the subcritical state of such High Temperature High Pressure, make axle 10 to the internal translation of outer tube 3 by rotating translation mechanism 9.Thus, piston 12 is moved to dehydrating tube cap 11a, and the Organic mud 31 between piston 12 and dehydrating tube cap 11a is compressed, thus carry out processed.Organic mud 31 is when the inside of dehydrating tube 11 is compressed, and the liquid components (dehydrated filtrate) such as the moisture that Organic mud 31 comprises are discharged via the opening portion 11b of dehydrating tube 11.Thus, process water 32 can be stored further in outer tube 3.
Now, the inside of the Organic mud 31 crossed by sub-critical treatment the viscosity of liquid moisture that comprises reduce.Therefore, by making the Organic mud 31 by sub-critical treatment is crossed dewater under the high temperature and high pressure atmosphere of subcritical state, the dehydration property based on compression can be improved, in processed, effectively can utilize the subcritical state of High Temperature High Pressure.
Then, as shown in Figure 2, perform subcritical in de-liquid operation (step ST3).As shown in Figure 5, in this is subcritical in de-liquid operation, by the high temperature and high pressure atmosphere of the inner sustain of outer tube 3 at subcritical state, and opens valve 23 and make it be in open mode.Thus, atmosphere pressures is made to act on process water 32(with reference to Fig. 4 because of the high pressure conditions of the inside of outer tube 3), and process water 32 is supplied rapidly to hold-up vessel 2 via liquid discharge pipe 6 and feed pipe 22 from outer tube 3.So, discharged by the treatment solution 32 of the inside by outer tube 3, Organic mud 31 and contact with moisture in removal process described later can be prevented.In addition, because valve 23 becomes open mode, therefore when the process water 32 of the inside of outer tube 3 supplies to hold-up vessel 2, the atmosphere of the inside of hold-up vessel 2 also becomes the high temperature and high pressure atmosphere identical with the inside of outer tube 3.
Then, as shown in Figure 2, degassing process (step ST4) is performed.As shown in Figure 6, in this degassing process, first, shut-off valve 23 and make it be in closing condition.Afterwards, open the open and close valve 4a of vapor pipe 4 and make it be in open mode.Thus, the steam such as the water vapor of the inside of outer tube 3 externally discharge, and the atmosphere pressure of the inside of outer tube 3 is reduced to the pressure of the regulation less than the atmosphere pressure under the high temperature and high pressure atmosphere of subcritical state, specifically, such as, is reduced to normal atmosphere.On the other hand, at hold-up vessel 2 place, open open and close valve 21a and make it be in open mode.Thus, the steam such as the water vapor of the inside of hold-up vessel 2 externally discharge, and the pressure of the inside of hold-up vessel 2 is reduced to the pressure of regulation gradually, such as, be reduced to normal atmosphere.The steam of discharging by open and close valve 4a, open and close valve 21a like this externally gaseous emission or be supplied to external device (ED) (not shown) etc. as required.And, after the pressure of the inside of hold-up vessel 2 such as have decreased to atmospheric level fully, by opening open and close valve 24a, thus the process water 32 of the inside of hold-up vessel 2 is externally discharged via delivery pipe 24.
In addition, under the high temperature and high pressure atmosphere of the inside of the outer tube 3 before above-mentioned degassing process, the major part of the liquid moisture contained by Organic mud 31 all reaches the temperature higher than 100 DEG C.And if when carrying out degassing process from this state and make the pressure of the inside of outer tube 3 to normal atmosphere, the moisture of more than 100 DEG C contained by the Organic mud 31 that compresses will become water vapor and evaporate, thus be discharged into the outside of outer tube 3.Thereby, it is possible to the dehydrated Organic mud 31 processed removes moisture further in subcritical middle dehydration procedure, dewatering efficiency is improved further.
Then, as shown in Figure 2, removal process (step ST5) is performed.As shown in Figure 7, in this removal process, stationary fixture 8 is disassembled from outer tube 3 and cap 7, and dehydrating tube cap 11a is being disassembled from dehydrating tube 11 by cap 7 while outer tube 3 is dismantled.
Then, by the inner side direction (pressing direction in Fig. 7) of axle 10 to outer tube 3 being pressed into by rotating translation mechanism 9, can take out by the dewatered cake compressing dehydrated Organic mud 31 from dehydrating tube 11.The dewatered cake of this Organic mud 31 is carried out to burning disposal or buried process.
Then, by by rotating translation mechanism 9 by axle 10 from outer tube 3 in outward direction (Return-ing direction in Fig. 7) pull, thus make piston 12 be returned to initial position thereupon interlock.Afterwards, if again receive pending Organic mud 31 in the inside of dehydrating tube 11, then the operation performing above-mentioned step ST1 ~ step ST5 carries out the hydrothermal treatment consists to Organic mud.
Adopt one embodiment of the present invention described above, by the hydrothermal treatment consists separately formed and processed are utilized same hydrothermal treatment device to perform in the past, the space saving comprising the treatment system of the Organic mud of this hydrothermal treatment device can be realized, and in processed, also effectively can utilize the high temperature and high pressure atmosphere of hydrothermal treatment consists.In addition, due to without the need to Organic mud 31 being carried to dehydration treatment equipment from hydrothermal treatment device as in the past, therefore, it is possible to reduce the process number in hydrothermal treatment process.In addition, after processed being carried out to Organic mud 31 under the high-temperature atmosphere of subcritical state, also by the normal atmosphere reduced pressure from the high-pressure atmosphere of subcritical state as the pressure of the regulation less than this atmosphere pressure, the moisture contained by Organic mud 31 is evaporated, thus carry out processed with two stages, therefore, it is possible to the water ratio of the Organic mud 31 becoming dewatered cake is reduced further.
In an above-mentioned embodiment, it is the horizontal of level that outer tube 3 and dehydrating tube 11 are set to its length direction, but is not limited to this, also can be that outer tube 3 and dehydrating tube 11 are set to its length direction is the vertical of vertical.
utilizability in industry
The present invention can be applicable to be had the hydro-thermal treatment method of dehydration procedure and de-liquid operation and has the hydrothermal treatment device of dewatering device and dehydrator structure, especially it is possible to be applicable to the hydro-thermal treatment method that under subcritical atmosphere, treated object processed and hydrothermal treatment device.
description of reference numerals
1 hydrothermal treatment device main body
2 hold-up vessels
3 outer tubes
3a flange part
4,21 vapor pipes
4a, 21a, 24a open and close valve
5 air suction pipes
6 liquid discharge pipes
7 caps
8 stationary fixtures
9 rotating translation mechanisms
10 axles
11 dehydrating tubes
11a dehydrating tube cap
11b opening portion
12 pistons
22 feed pipes
23 valves
24 delivery pipes
31 Organic mud
32 process water