CN204529748U - A kind of fine particle four sections of moving-bed retorting furnaces - Google Patents
A kind of fine particle four sections of moving-bed retorting furnaces Download PDFInfo
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- CN204529748U CN204529748U CN201520192014.8U CN201520192014U CN204529748U CN 204529748 U CN204529748 U CN 204529748U CN 201520192014 U CN201520192014 U CN 201520192014U CN 204529748 U CN204529748 U CN 204529748U
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Abstract
The utility model discloses a kind of fine particle four sections of moving-bed retorting furnaces.Described gas retort is provided with opening for feed on drying and preheating section top, downside is provided with heat smoke inlet mouth and upside is provided with smoke outlet and venting port, drying and preheating section is provided with the dry interchanger be communicated with heat smoke inlet mouth and smoke outlet, drying and preheating section is communicated with retort section up and down through seal section, under retort section, upside is provided with high-temperature flue gas inlet mouth and exhanst gas outlet, retort section is provided with the destructive distillation interchanger be communicated with exhanst gas outlet with high-temperature flue gas inlet mouth and the oil gas export mouth be communicated with outer wall gas recovery system for oil, cooling section is communicated with retort section and bottom is connected with the system of the discharging of the coke and downside is provided with water inlet, upside is provided with water outlet, cooling section is provided with the cooling heat exchanger be communicated with water outlet with water inlet.The utility model has the advantages that power consumption is low, oil gas Dust Capacity is few, pyrolysis caloric power of gas is high, resource utilization is high.
Description
Technical field
The utility model belongs to derived energy chemical technical field, is specifically related to fine particle four sections of moving-bed retorting furnaces that a kind of power consumption is low, oil gas Dust Capacity is few, pyrolysis caloric power of gas is high, resource utilization is high.
Background technology
Rich coal resources in China, raw coal is except being partly used for coking, transforming except processing, and the overwhelming majority is for directly burning, and not only thermo-efficiency is low, serious to the destruction of environment, and the hydrogen-rich component in coal with higher economic worth can not get Appropriate application.And China's resinous shale, oil sands reserves enrich, development of resources has a high potential.
At present, coal or resinous shale low-temperature pyrolysis technology major part adopt block gaseous heat-carrier retorting technique, low-temperature pyrolysis as coal has three river stoves, the strange three sections of stoves in Shandong, the low-temperature pyrolysis of resinous shale has the Pei Teluosekesi stove etc. of Fushun stove, Maoming stove, Jilin Cheng great Lu, Estonian Abel Kiviat stove, Brazil, but ubiquity cannot utilize the destructive distillation material of <15mm granularity, particularly resinous shale industry, causes resource to waste greatly.
For coal or resinous shale, the oil-sand fine particle retorting technique of <15mm granularity, fluidized-bed, air flow bed mode can be adopted, also have solid thermal carriers (carrier is hot semicoke or heat ash) moving-bed mode.But these destructive distillation modes, many disadvantages such as all there is gas solid separation difficulty, power consumption is large, equipment attrition is large, semicoke granularity is meticulous.Especially fluidized-bed, also there is " suffering from vomiting and diarrhoea " problem, oil yield rate reduces relatively, can cause the wasting of resources equally.Moving-bed hot solid carrier devolatilization technology, as the retorting technique being thermal barrier with cycling hot semicoke or heat ash, although power consumption and equipment attrition are relatively little, pyrolyzate is easily broken and with oil gas effusion, cause the dust in the middle of oil gas to remove difficulty.And gaseous heat-carrier direct heating pyrolytic process, not only pyrolysis devolatilization product is by flue gas dilution, and dry distillation gas calorific value is lower, has been mingled with a large amount of dust in oil gas simultaneously, causes gas-oil separation difficulty, also improves the load of cooling system.Therefore, fine particle retorting technique bottleneck: be exactly volatile matter (raw gas or title destructive distillation oil gas) the gas solid separation difficulty that destructive distillation produces.Because containing oil in the middle of the volatile matter that destructive distillation produces, the reduction along with temperature has oily condensation, so it is different from general gas solid separation.In addition, no matter be fluidized-bed, air flow bed destructive distillation, or the destructive distillation of solid thermal carriers moving-bed, retort process that they all belong to " isothermal ".Moisture, volatile matter are overflowed instantaneously, very easily cause heat to collapse broken, and make semicoke product granularity thinner, Dust Capacity is larger, adds gas solid separation difficulty.
Utility model content
The purpose of this utility model is to provide fine particle four sections of moving-bed retorting furnaces that a kind of power consumption is low, oil gas Dust Capacity is few, pyrolysis caloric power of gas is high, resource utilization is high.
The purpose of this utility model is achieved in that the drying and preheating section comprising and setting gradually from top to bottom, seal section, retort section, cooling section, described drying and preheating section top is provided with opening for feed, downside is provided with heat smoke inlet mouth and upside is provided with smoke outlet and venting port, described drying and preheating section is provided with the dry interchanger be communicated with heat smoke inlet mouth and smoke outlet, described drying and preheating section is communicated with retort section up and down by seal section, high-temperature flue gas inlet mouth is provided with and upside is provided with exhanst gas outlet on the downside of described retort section, described retort section is provided with the destructive distillation interchanger be communicated with exhanst gas outlet with high-temperature flue gas inlet mouth and the oil gas export mouth be communicated with outer wall gas recovery system for oil, described cooling section is communicated with retort section and bottom is connected with the system of the discharging of the coke and downside is provided with water inlet, upside is provided with water outlet, described cooling section is provided with the cooling heat exchanger be communicated with water outlet with water inlet.
The utility model arranges interchanger in drying and preheating section, passes into heat smoke carry out indirect heating to destructive distillation material wherein from bottom, and discharges flue gas and dry waste gas respectively from the chimney of upside and venting port; Destructive distillation material carries out drying and dehydrating and preheating before destructive distillation, significantly reduces the heat supply of retort section, and dry, preheating section is less demanding to thermal source mass, can widen drying, preheating thermal source, thus reduces production cost.Between drying and preheating section and retort section, seal section is set, seal section adopts pyrolyzate stockpile lamination as sealing, make the gas in drying and preheating section and retort section not connected, drying and preheating and destructive distillation are separated, the water vapor that can effectively prevent drying and preheating section from producing is mixed in the middle of destructive distillation oil gas, also reduces destructive distillation heat supply in addition; In addition, the pyrolysis coal gas that retort section produces also can not the heat smoke of dried preheating section and water vapour dilution, and therefore pyrolysis caloric power of gas is high, is convenient to following process and utilizes; The free-water produced because of coal or resinous shale drying is not mixed in the middle of the oil gas of destructive distillation generation, but discharges separately from drying and preheating section, alleviates gas recovery system for oil load; Because the Waste water yield (the pyrolysis water just in destructive distillation material) significantly reduces, so also reduce wastewater treatment load; Relatively improve content of phenol in waster simultaneously, add the economic worth of waste water reclamation phenol.Process that drying and preheating section and retort section are " gradually temperature " is " isothermal " process unlike fluidized-bed, air flow bed, solid thermal carriers (hot semicoke or heat ash etc.) destructive distillation, and the moisture in coal or resinous shale, volatile matter are overflowed instantaneously, and to cause heat to collapse broken; Destructive distillation material travelling speed in gas retort in the utility model is slow, and friction probability occurs just little between particle and between particle and equipment, material degree of crushing is low, and the Dust Capacity therefore in oil gas is little.In addition, the oil gas that destructive distillation produces forms " V " shape or the flowing of " W " shape warpage with the dedusting of natural subsidence mode by the settling pocket of the downward lead-in zone dividing plate of the gas channel of comparatively large vol, thus effectively solves the technical barrier of gas solid separation in the middle of oil gas that fine particle retort process produces.Hot semicoke after destructive distillation injects the cooling heat exchanger of water coolant and indirectly cools through bottom, both reclaimed the sensible heat of semicoke, can be used to produce steam or as water-to-water heat exchanger on Industrial Boiler, in order to north of china in winter heating etc., improve efficiency of energy utilization; Semicoke can be made again to be cooled to <150 DEG C in this section, to discharge of the coke for dry method and lay a good foundation.By the control of destructive distillation heat source temperature passed into retort section, the volatile matter of semicoke is effectively controlled, and effectively can reduce the generation of mink cell focus, thus the lightweight oil of the more high benefits of output.In addition, the utility model is quiet body equipment except the system of the discharging of the coke, and destructive distillation material runs slowly in stove, so this gas retort power consumption is low, and equipment attrition is little.Therefore, the utility model has the advantages that structure is simple, power consumption is low, oil gas Dust Capacity is few, pyrolysis caloric power of gas is high, resource utilization is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the left view of Fig. 1;
Fig. 3 be Fig. 1 comprise settling pocket sectional structure schematic diagram;
In figure: 1-drying and preheating section, 11-opening for feed, 12-heat smoke inlet mouth, 13-smoke outlet, 14-venting port, the dry interchanger of 15-, 2-seal section, 21-dried dust exports, 3-retort section, 31-high-temperature flue gas inlet mouth, 32-exhanst gas outlet, 33-destructive distillation interchanger, 4-cooling section, 41-water inlet, 42-water outlet, 43-cooling heat exchanger, 5-shaking device, 6-gas channel, traverse baffle under 71-, the upper traverse baffle of 72-, 8-settling pocket, 81-dust outlet, 82-valve, 9-coal bunker.
Embodiment
Be further described the utility model below in conjunction with drawings and Examples, but limited the utility model never in any form, any change done based on the utility model training centre or improvement, all belong to protection domain of the present utility model.
As shown in the figures 1 and 2, the utility model comprises the drying and preheating section 1 set gradually from top to bottom, seal section 2, retort section 3, cooling section 4, described drying and preheating section 1 top is provided with opening for feed 11, downside is provided with heat smoke inlet mouth 12 and upside is provided with smoke outlet 13 and venting port 14, described drying and preheating section 1 is provided with the dry interchanger 15 be communicated with heat smoke inlet mouth 12 and smoke outlet 13, described drying and preheating section 1 is communicated with retort section about 3 by seal section 2, high-temperature flue gas inlet mouth 31 is provided with and upside is provided with exhanst gas outlet 32 on the downside of described retort section 3, described retort section 3 is provided with the destructive distillation interchanger 33 be communicated with exhanst gas outlet 32 with high-temperature flue gas inlet mouth 31 and the oil gas export mouth 34 be communicated with outer wall gas recovery system for oil, described cooling section 4 is communicated with retort section 3 and bottom is connected with the system of the discharging of the coke and downside is provided with water inlet 41, upside is provided with water outlet 42, described cooling section 4 is provided with the cooling heat exchanger 43 be communicated with water outlet 42 with water inlet 41.
Described drying and preheating section 1 and seal section 2 outer wall are provided with shaking device 5.
Described retort section 3 arranged outside has the gas channel 6 that is communicated with oil gas export mouth 34 and downside to be provided with the settling pocket 8 being with dividing plate 7, and described oil gas export mouth 34 is communicated with gas recovery system for oil by gas channel 6 and settling pocket 8.
As shown in Figure 3, described settling pocket 8 is in " W " shape structure and bottom is provided with dust outlet 81, described dust outlet 81 is provided with valve 82, described settling pocket 8 is upwards provided with the lower clapboard 71 of upper opening from valve 82, and described settling pocket 8 is in lower clapboard 71 both sides and to be respectively arranged with from top and the upper spacer 72 of lower openings between gas channel 6 interface and oil gas vent downwards.
Described exhanst gas outlet 32 is communicated with heat smoke inlet mouth 12.
Be provided with horn shape box in described drying and preheating section 1 and/or retort section 3, described horn shape box is communicated with venting port 14 and/or oil gas export mouth 34.
Described horn shape box Heterogeneous Permutation successively from top to bottom in drying and preheating section 1 and/or retort section 3.
Described horn shape box is the structure that " Λ " shape or " Λ " shape add bottom two side shield.
Described gas retort is rectangular parallelepiped or cube structure, and described horn shape box two ends are connected with drying and preheating section 1 and/or retort section 3 two side.
Described settling pocket 7 and/or gas channel 6 outer wall are provided with thermal insulation layer.
Described destructive distillation raw material is the coal of granularity <15mm, resinous shale or oil-sand.
Confined layer thickness in described seal section 2 is 2 ~ 3m.
The water inlet 42 of described cooling section 4 is connected with the softening water recycle system.
principle of work and working process:
The utility model arranges interchanger respectively in drying and preheating section and retort section, destructive distillation material particles is scattered between interchanger by deadweight, pass into heat smoke respectively from interchanger bottom and indirect heating is carried out to destructive distillation material wherein, realize the drying of destructive distillation material, preheating and pyrogenation and carbonization, and chimney on the upside of drying and preheating section and venting port discharge flue gas and dry waste gas respectively.Destructive distillation material carries out drying and dehydrating and preheating before destructive distillation, significantly reduces the heat supply of retort section, and drying and preheating section is less demanding to thermal source mass, can widen drying and preheating thermal source.As drying and preheating section thermal source after the hot cigarette particularly retort section heat smoke and hot cigarette stove produced and/or the useless flue gas that circulates mix, can effectively reduce thermal source production cost, improve efficiency of energy utilization.Between drying and preheating section and retort section, seal section is set, seal section adopts destructive distillation material own wt to form confined layer as sealing, make the gas in drying and preheating section and retort section not connected, drying and preheating and destructive distillation are separated, the water vapor that can effectively prevent drying and preheating section from producing is mixed in the middle of destructive distillation oil gas, also reduces destructive distillation heat supply in addition; In addition, the pyrolysis coal gas that retort section produces also can not the heat smoke of dried preheating section and water vapour dilution, and therefore pyrolysis caloric power of gas is high, is convenient to following process and utilizes; The free-water produced because of coal or resinous shale drying is not mixed in the middle of the oil gas of destructive distillation generation, but discharges separately from drying and preheating section, alleviates gas recovery system for oil load; Because the Waste water yield (the pyrolysis water in destructive distillation material) significantly reduces, so also reduce wastewater treatment load.Relatively improve content of phenol in waster simultaneously, add the economic worth of waste water reclamation phenol.Process that drying and preheating section and retort section are " gradually temperature " is " isothermal " process unlike fluidized-bed, air flow bed, solid thermal carriers (hot semicoke or heat ash etc.) destructive distillation, and the moisture in coal or resinous shale, volatile matter are overflowed instantaneously, and to cause heat to collapse broken.Destructive distillation material travelling speed in gas retort is slow, and friction probability occurs just little between particle and between particle and equipment, material degree of crushing is low, and the Dust Capacity therefore in oil gas is little.The horn shape box of Heterogeneous Permutation is successively set from top to bottom further in drying and preheating section and/or retort section, to collect waste gas and the pyrolysis oil gas of the generation of stove inner drying, namely by the dust of the stop minimizing entrained gas of horn shape box structure, again by large cavity horn shape box to reduce gas flow rate, be conducive to dust in gas and precipitate back corresponding drying and preheating section and/or retort section, reduce the dust content collected in gas.Finally large space gas channel is set in retort section both sides, oil gas is guided to flow to the settling pocket of lower belt dividing plate from top to bottom, particularly settling pocket is arranged in " W " shape structure, hydrocarbon flow is made to form " V " shape or the flowing of " W " shape warpage by the dividing plate of inside, the dust-laden in oil gas is removed by natural subsidence, gas recovery system for oil is imported after accessing the further dedusting of tornado dust collector if desired again, dust in the middle of oil gas effectively can be removed, thus gas solid separation technical barrier in the middle of the oil gas of effectively solution fine particle retort process generation.Hot semicoke after destructive distillation injects the cooling heat exchanger of water coolant and indirectly cools through bottom, both reclaimed the sensible heat of semicoke, can be used to produce steam or as water-to-water heat exchanger on Industrial Boiler, in order to north of china in winter heating etc., improve efficiency of energy utilization.Semicoke can be made again to be cooled to <150 DEG C in this section, to discharge of the coke for dry method and lay a good foundation.In addition, the utility model is quiet body equipment except the system of the discharging of the coke, and destructive distillation material runs slowly in stove.So this gas retort power consumption is low, and equipment attrition is little.Therefore, the utility model has the advantages that structure is simple, power consumption is low, oil gas Dust Capacity is few, pyrolysis caloric power of gas is high, resource utilization is high.
Claims (7)
1. a fine particle four sections of moving-bed retorting furnaces, it is characterized in that comprising the drying and preheating section (1) set gradually from top to bottom, seal section (2), retort section (3), cooling section (4), described drying and preheating section (1) top is provided with opening for feed (11), downside is provided with heat smoke inlet mouth (12) and upside is provided with smoke outlet (13) and venting port (14), described drying and preheating section (1) is provided with the dry interchanger (15) be communicated with heat smoke inlet mouth (12) and smoke outlet (13), described drying and preheating section (1) is communicated with retort section (3) up and down by seal section (2), described retort section (3) downside is provided with high-temperature flue gas inlet mouth (31) and upside is provided with exhanst gas outlet (32), described retort section (3) is provided with the destructive distillation interchanger (33) be communicated with exhanst gas outlet (32) with high-temperature flue gas inlet mouth (31) and the oil gas export mouth (34) be communicated with outer wall gas recovery system for oil, described cooling section (4) is communicated with retort section (3) and bottom is connected with the system of the discharging of the coke and downside is provided with water inlet (41), upside is provided with water outlet (42), described cooling section (4) is provided with the cooling heat exchanger (43) be communicated with water outlet (42) with water inlet (41).
2. gas retort according to claim 1, is characterized in that described drying and preheating section (1) and seal section (2) outer wall are provided with shaking device (5).
3. gas retort according to claim 1, it is characterized in that described retort section (3) arranged outside has the gas channel (6) that is communicated with oil gas export mouth (34) and downside to be provided with the settling pocket (8) being with dividing plate (7), described oil gas export mouth (34) is communicated with gas recovery system for oil by gas channel (6) and settling pocket (8).
4. gas retort according to claim 3, it is characterized in that described settling pocket (8) is " W " shape structure and bottom is provided with dust outlet (81), described dust outlet (81) is provided with valve (82), described settling pocket (8) is upwards provided with the lower clapboard (71) of upper opening from valve (82), and described settling pocket (8) to be respectively arranged with between interface and oil gas vent in lower clapboard (71) both sides and gas channel (6) from top downwards and the upper spacer of lower openings (72).
5. the gas retort according to claim 1,2 or 3, is characterized in that described exhanst gas outlet (32) is communicated with heat smoke inlet mouth (12).
6. the gas retort according to claim 1,2 or 3, it is characterized in that being provided with horn shape box in described drying and preheating section (1) and/or retort section (3), described horn shape box is communicated with venting port (14) and/or oil gas export mouth (34).
7. gas retort according to claim 6, is characterized in that described horn shape box Heterogeneous Permutation successively from top to bottom in drying and preheating section (1) and/or retort section (3); Described horn shape box adds both sides, bottom baffle arrangement for " Λ " shape or " Λ " shape.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789242A (en) * | 2015-04-01 | 2015-07-22 | 曲靖众一精细化工股份有限公司 | Fine-particle four-section moving bed dry distillation furnace and dry distillation method thereof |
| CN105694925A (en) * | 2016-03-02 | 2016-06-22 | 北京神雾环境能源科技集团股份有限公司 | Organic waste pyrolysis system and application thereof |
| CN107892934A (en) * | 2017-12-12 | 2018-04-10 | 长春三真实业有限公司 | A kind of oil-sand separation pyrolysis installation |
-
2015
- 2015-04-01 CN CN201520192014.8U patent/CN204529748U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789242A (en) * | 2015-04-01 | 2015-07-22 | 曲靖众一精细化工股份有限公司 | Fine-particle four-section moving bed dry distillation furnace and dry distillation method thereof |
| CN105694925A (en) * | 2016-03-02 | 2016-06-22 | 北京神雾环境能源科技集团股份有限公司 | Organic waste pyrolysis system and application thereof |
| CN105694925B (en) * | 2016-03-02 | 2018-02-27 | 神雾科技集团股份有限公司 | Organic waste pyrolysis system and its application |
| CN107892934A (en) * | 2017-12-12 | 2018-04-10 | 长春三真实业有限公司 | A kind of oil-sand separation pyrolysis installation |
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