CN1089030C - Indirectly heated active carbon regenerating device and method - Google Patents
Indirectly heated active carbon regenerating device and method Download PDFInfo
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- CN1089030C CN1089030C CN 98111377 CN98111377A CN1089030C CN 1089030 C CN1089030 C CN 1089030C CN 98111377 CN98111377 CN 98111377 CN 98111377 A CN98111377 A CN 98111377A CN 1089030 C CN1089030 C CN 1089030C
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- gac
- heating
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- active carbon
- heating piece
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Abstract
The present invention relates to an indirectly heated active carbon regenerator and a regenerating method. The indirectly heated active carbon regenerator is composed of a discharge hopper, a camera, an exhaust device, a feed hopper, a control cabinet, a thermal couple, a heating sheet, a hearth, a bedplate, a rack, a belt conveyer, a speed reduction overturn transmission device and a casing, wherein the heating sheet is made of high resistance alloy or heating material with carbon and silicon, the heating sheet is installed in the hearth, the hearth is made of thermal insulation material which can resist the temperature of more than 85DEG C, the heating sheet is heated by connecting both ends of the heating sheet to a heavy current at low voltage, and the activation temperature is from 850 to 1000DEG C. The indirectly heated active carbon regenerator can be used for regenerating both granular carbon and powdery carbon, and has the advantages of short regeneration time, little carbon loss, simple structure and small size.
Description
The present invention carries out manipulation of regeneration to exhausted is Powdered with granular active carbon, recovers the active carbon regenerating unit and the renovation process of absorption property.
Through the pertinent data retrieval, also there be not side-heating active carbon regenerating unit and the renovation process identical at present with structure of the present invention.To the exhausted regeneration of activated carbon, recover its adsorptive power and mainly contain following five kinds of methods at present:
1, the chemical method of medicament wash-out.
2, utilize the biological process of biological action.
3, be forced into 30-70kg/cm
2, and under 200-250 ℃ of temperature, make the wet oxidation process of adsorbed organic matter oxygenolysis.
4, the oxygen that produces with electrolysis makes the electrochemical process of adsorptive oxygenolysis.
5, carry out the activatory heating method under 800-900 ℃ of high temperature of heating.
In above-mentioned five kinds of methods, wherein with heating method regeneration effect the best, almost decompose all effective to all organism, the thermal regeneration device has many kinds of forms, use at present both at home and abroad more have multi-layer type, rotary type, fluidisation formula, moving-bed type, these type of furnaces all burn coal gas or petroleum gas, indirectly or the direct heating gac, and feeding steam activation, and need control oxygen making amount in confined conditions, thereby the recovery time is long, was generally 1-6 hour, body of heater is up to 9-12 rice, and the tax consumption of charcoal is 5-12% in the regeneration.
Tail health three bright " the directly energized active carbon regenerating units " succeeded in developing in 1976 during the special permission communique that Japan delivers in March, 1980 is introduced for No. 11606, it all is advanced that No. 4261857 patent specifications that the U.S. delivers in April, 1981 have been introduced " active carbon regenerating technology and the equipment " that Japanese Nakao succeeded in developing in 1978, its weak point is that this device build is tall and big, complex structure, recovery time is long, energy consumption is big, and regeneration loss is bigger than normal, all can't regenerate to powdered active carbon.
China CN85100619 " exhausted gac forced electric discharge reactivating method and device " patent, this patented technology is implemented by Qidong City gac instrument factory, though energy consumption is lower a kind of of energy consumption in the present regeneration of activated carbon equipment, the regenerated carbon rate of loss is also lower, but its maximum weak point is can not regenerate to particle charcoal more than 40 orders and powder charcoal.
China CN95111001.2 " side-heating active carbon regenerating unit and renovation process " patent; though this patented technology can be regenerated to granulated active carbon, also can regenerate to the powder charcoal more than 100 orders, its maximum weak point is to construct still complexity; the manufacturing cost height, consumable accessory is many.
The objective of the invention is to overcome the weak point of present regeneration of activated carbon equipment; providing a kind of can regenerate by granulated active carbon; also can also can regenerate to the powder charcoal more than 100 orders, and simple structure, the side-heating active carbon regenerating unit of low cost of manufacture, few easy workout part and renovation process.
The objective of the invention is to be achieved through the following technical solutions.Side-heating active carbon regenerating unit is made up of discharge bucket, pick up camera, gas barrier, hopper, housing, thermopair, heating piece, Lu Tang, platen, stand, frame, belt conveyor, deceleration upset transmission mechanism and shell.Discharge bucket is contained on the frame pin, pick up camera is contained on the inclined-plane on shell shell top, hopper is contained in the centre on shell shell top, gas barrier is contained on another inclined-plane on shell shell top, thermopair and heating piece link, and be contained in together in the stove hall, heating piece is made by high-resistance alloy or carbon silicon exothermic material, as nichrome, Aludirome, stone is deceived goods (silicon) etc., the stove hall is made with heat-resisting thermal insulation material more than 850 ℃, and the stove hall is contained in above the platen, and platen is contained on the stand, stand is contained on the frame by rotation axis, this rotation axis and the upset transmission mechanism that slows down link, and frame is cased, and the upper end of belt conveyor leans against in the charging quarrel, lower end and gac hopper link, and housing is by pilot circuit and belt conveyor, the upset transmission mechanism slows down, thermopair, heating piece and pick up camera link.When regenerating with side-heating active carbon regenerating unit; the starting belt conveyor; the exhausted gac is entered the hopper from Skip hoisting; in the amounts of activated carbon in the hopper reaches the stove hall during charcoal amount of primary recycling; rotary conveyor is shut down; gac in the hopper is put into the stove hall; then the heating piece in the stove hall is connected low-voltage and high-current; to the gac heat drying; roasting; activation; to the gac heat drying; roasting; the activatory while, the ceaselessly both forward and reverse directions rotation of upset transmission mechanism of slowing down is vacillated now to the left, now to the right the stove hall; it waves in ° scope of angle ± 90; make the gac temperature in the stove hall even, use the thermocouple temperature measurement that links with heating piece, when temperature reaches 850-1000 ℃, cut off the heating piece power supply; and make the upset transmission mechanism unidirectional rotation of slowing down, the gac that regeneration is good is poured in the discharge bucket.When regeneration, when the fineness of activated carbon granule when 100 orders are above, the heating of gac is carried out under vacuum state, when the fineness of activated carbon granule when 100 orders are following, the heating of gac can be carried out under the state that does not need with air insulated, also can carry out under vacuum state.
The present invention compares with the regeneration of activated carbon equipment of present use, and have and can both regenerate particle charcoal and powder charcoal, simple structure, volume is small and exquisite, the regeneration efficiency height, charcoal decreases few, and operating maintenance is convenient, and capital cost is low, obvious energy conservation, working cost is few.Main technical characteristics: 1, drying, roasting, activation three phases are once finished; 2, recovery time 4-8 minute; 3, regeneration temperature 850-1000 ℃; 4, regeneration wastage rate powder charcoal is less than 5%, and the particle charcoal is less than 2%; 5, the absorption recovery rate is 97-110% (in an iodine number); 6, energy consumption: dried charcoal (moisture content of drying base is 10%) current consumption 0.18 degree electricity/kilogram charcoal; Wet charcoal (moisture content of drying base is 70%) consumption 0.7-0.8 degree electricity/kilogram charcoal; 7, do not need to feed activated gas such as water vapor, do not need to feed water yet; 8, can start at any time or blowing out, whole regenerative operation process can realize automatic control.
Accompanying drawing is schematic diagram of the present invention and structural representation.Fig. 1 is a fundamental diagram of the present invention, and Fig. 2 is a structural representation of the present invention.
Below in conjunction with description of drawings principle of work of the present invention and working condition.In the accompanying drawing 1: T
1-T
3Be thyristor, L
BBe strong current transformer, P
A, P
B, P
CBe heating piece, M
1Be belt conveyor, H
CBe the heating piece thermostat.Among Fig. 2: 1---belt conveyor; 2---discharge bucket; 3---pick up camera; 4---hopper; 5---gas barrier; 6---housing; 7---thermopair; 8---heating piece; 9---the stove hall; 10---platen; 11---stand; 12---frame; 13---the upset transmission mechanism slows down; 14---shell.
Principle of work of the present invention is as follows: as shown in Figure 1, three-phase supply is through thyristor T
1-T
3Send into strong current transformer L after the adjustment
B, convert low-voltage, high-current to, this low-voltage, high-current is connected on heating piece P
A, P
B, P
CIntensification also reaches activation temperature 850-1000 ℃, and the exhausted gac is by belt conveyor M
1, promote and enter hopper 4, enter stove hall 9 subsequently and obtain drying, roasting, activation, recover the various performances of gac comprehensively.
Working condition of the present invention is as follows: as shown in Figure 2; start belt conveyor 1 earlier; exhausted gac lifting in the hopper is entered hopper 4; in reaching the stove hall, the amounts of activated carbon in the hopper 4 automatically belt conveyor 1 is shut down during the charcoal amount of primary recycling; then the charcoal in the hopper 4 is put into stove hall 9; at this moment heating piece 8 is connected low-voltage and high-current; make heating piece 8 heating and the temperature rising; gac in the stove hall also heats up with heating piece 8 temperature; the ceaselessly both forward and reverse directions rotation of the transmission mechanism 13 of deceleration upset meanwhile; the stove hall is vacillated now to the left, now to the right; it waves angle in ± 90 ° of scopes, and the result that the stove hall waves makes the temperature of the gac in the stove hall even.Show when reaching in the 850-1000 ℃ of scope by thermopair 7 thermometrics and on the temperature indicator of housing, automatically cutting off power supply in the heating 8 (cuts off the electricity supply when showing in 850-1000 ℃ that temperature on earth, look different gac, required temperature is regulated during as carbo lignius, fruit shell carbon, coal mass active carbon regeneration), make upset transmission mechanism 13 unidirectional rotation of slowing down then, pour the good gac of regenerating in the stove hall 9 into discharging 2, discharging cooling back packing.
The present invention is the length of regeneration of activated carbon time in force, relevant with the size of heating piece 8 and gac contact area, for increasing the contact area of heating piece 8 and gac, heating piece can be made dish type or other curve shape, make the gac of primary recycling some more, the method of available many heating piece parallel connections strengthens the regeneration amount of a gac, the material of heating piece 8 with carbon silicon exothermic material for well.
Low-voltage and high-current of the present invention is to heating piece 8 heating, for the certain heating piece of resistance, its low-voltage and high-current directly influences the length of recovery time, as us in test, the resistance value of one heating piece is 0.025 ohm, its voltage 27V, when electric current was 1000A, its recovery time was 5 minutes, when electric current is 1100A, its recovery time is 4.5 minutes, and when electric current was 1200A, the recovery time was 4 minutes.
In another test, the resistance of a heating piece is 0.030 ohm, and its voltage is 30V, when electric current was 900A, its recovery time was 5 minutes, when electric current is 950A, recovery time is 4.6 minutes, and the recovery time is 4.2 minutes when electric current is 1000A, when a heating piece resistance is 0.02 ohm, its voltage is 24V, when electric current was 1170A, the recovery time was 5 minutes, when electric current is 1240A, recovery time is 4.5 minutes, and the recovery time is 4 minutes when electric current is 1290A.
Claims (4)
1, a kind of side-heating active carbon regenerating unit, it comprises: discharge bucket, pick up camera, gas barrier, housing, thermopair, heating piece, the stove hall, platen, stand, frame, upset transmission mechanism and shell slow down, discharge bucket is contained on the frame pin, pick up camera is contained on the inclined-plane on shell shell top, gas barrier is contained on another inclined-plane on shell shell top, thermopair and heating piece link, and be contained in together in the stove hall, the stove hall is made with heat-resisting thermal insulation material more than 850 ℃, the stove hall is contained in above the platen, platen is contained on the stand, stand is contained on the frame by rotation axis, this rotation axis and the upset transmission mechanism that slows down link, and it is characterized in that it also comprises hopper and belt conveyor, and hopper is contained in the centre on shell shell top, the upper end of belt conveyor leans against in the charging quarrel, lower end and gac hopper link, and heating piece is made by high-resistance alloy and carbon silicon exothermic material, and housing is by the pilot circuit and the upset transmission mechanism that slows down, thermopair, heating piece and pick up camera link.
2,, it is characterized in that heating piece made by nichrome, Aludirome or carbon silicon exothermic material by the described side-heating active carbon regenerating unit of claim 1.
3; a kind of renovation process that adopts claim 1 or 2 described side-heating active carbon regenerating units; it is characterized in that starting belt conveyor; the exhausted gac is entered the hopper from Skip hoisting; in the amounts of activated carbon in the hopper reaches the stove hall during charcoal amount of primary recycling; rotary conveyor is shut down; gac in the hopper is put into the stove hall; then the heating piece in the stove hall is connected low-voltage and high-current; to the gac heat drying; roasting; activation; to the gac heat drying; roasting; activatory simultaneously; deceleration upset transmission mechanism ceaselessly both forward and reverse directions rotates; the stove hall is vacillated now to the left, now to the right; its angle of oscillation is in ± 90 ° of scopes; with the thermocouple temperature measurement that links with heating piece; when temperature reaches 850-1000 ℃, cut off the heating piece power supply, and make the upset transmission mechanism unidirectional rotation of slowing down, the gac that regeneration is good is poured in the discharge bucket.
4, press the renovation process of the described side-heating active carbon regenerating unit of claim 3, it is characterized in that fineness when activated carbon granule is when 100 orders are above, the heating of gac is carried out under vacuum state, when the fineness of gac when 100 orders are following, the heating of gac can be carried out under the state that does not need with air insulated, also can carry out under vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111377 CN1089030C (en) | 1998-06-22 | 1998-06-22 | Indirectly heated active carbon regenerating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111377 CN1089030C (en) | 1998-06-22 | 1998-06-22 | Indirectly heated active carbon regenerating device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1239678A CN1239678A (en) | 1999-12-29 |
| CN1089030C true CN1089030C (en) | 2002-08-14 |
Family
ID=5221361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111377 Expired - Fee Related CN1089030C (en) | 1998-06-22 | 1998-06-22 | Indirectly heated active carbon regenerating device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089030C (en) |
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1998
- 1998-06-22 CN CN 98111377 patent/CN1089030C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1239678A (en) | 1999-12-29 |
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