CN102514938A - Indirect-heat-exchange cooling system and cooling method thereof - Google Patents
Indirect-heat-exchange cooling system and cooling method thereof Download PDFInfo
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- CN102514938A CN102514938A CN2012100050340A CN201210005034A CN102514938A CN 102514938 A CN102514938 A CN 102514938A CN 2012100050340 A CN2012100050340 A CN 2012100050340A CN 201210005034 A CN201210005034 A CN 201210005034A CN 102514938 A CN102514938 A CN 102514938A
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Abstract
The invention discloses an indirect-heat-exchange cooling system and a cooling method thereof. The cooling system comprises a first screw feeding air valve (1), a water jacket screw conveyer (2), a second screw feeding air valve (3), a paddle type cooler (4) and a refrigerant medium system (5), wherein the first screw feeding air valve (1), the water jacket screw conveyer (2), the second screw feeding air valve (3) and the paddle type cooler (4) are connected with one another in turn in an output direction of equipment (6) for producing hot materials according to materials; and the refrigerant medium system (5) is communicated with a hollow device wall of the water jacket screw conveyer (2) and a hollow device wall of the paddle type cooler (4) respectively. According to the cooling method, the materials flow through the first screw feeding air valve (1), the water jacket screw conveyer (2), the second screw feeding air valve (3) and the paddle type cooler (4) in turn so that the temperature of the materials is progressively lowered, and simultaneously, a refrigerant medium is conveyed into the hollow device walls. According to the technical scheme provided by the invention, the materials are cleanly and efficiently cooled to a temperature required by subsequent process steps during conveyance, and safe and stable production of the subsequent process steps is ensured while energy resources are saved and the cost is reduced.
Description
Technical field
The present invention relates to a kind of cooling system and cooling method thereof of solid material, relate in particular to a kind of solid material cooling system and cooling method thereof of indirect heat exchange.
Background technology
The coal clean utilization is the first-elected development tendency with energy utilization of China's energy utilization now, in the coal clean utilization technology coal gasifying process be with coal in fully enclosed equipment, become the pioneering technology of cleaning fire gases and activated carbon through pyrolytic conversion.Because conversion process carries out under hot environment; So by-product will enter into the subsequent production operation with the high temperature above 800 ℃ as the carbon dust of activated carbon raw material; This will have very big influence to subsequent production technology, must the carbon dust required temperature of subsequent production technology that cools could be guaranteed the production of normal safety.
Traditional powder cooling intallation adopts like rotary drum cooling vessel or fluidized bed cooler, all is to adopt air to cool off, and air contacts very easily burning with the high temperature carbon dust, and produces explosive dust mixture, and environment and safety in production are had an immense impact on.And, to consume a large amount of air in order to reach cooling load, energy consumption is high.Need equipment such as supporting corresponding blowing engine, heavy caliber airduct, duct cyclone, bag dust collector simultaneously, operating cost is high, and the maintenance task is heavy.
Therefore; Solid accumulation heat radiation to existing solid material cooling system exists is uneven, contact problems such as pollution and potential safety hazard, the energy consumption of generation be excessive with refrigerant, need a kind of energy savings, efficiently cool, can guarantee the cooling system of safe and effective production.
Summary of the invention
The technical matters that the present invention will solve provides a kind of indirect heat exchange cooling system and cooling method thereof that makes material lower the temperature step by step and cool off.
For solving the problems of the technologies described above, adopt following technical scheme:
A kind of indirect heat exchange cooling system; Comprise the continuous successively first screw feeder air valve, water leg conveyor screw, the second screw feeder air valve and the oar blade type cooling vessel of from the equipment that produces thermal material, exporting according to material of direction; Also comprise respectively the refrigerant medium system that is communicated with the hollow wall of the hollow wall of water leg conveyor screw and oar blade type cooling vessel, be used for realizing the circulation of refrigerant medium in the hollow wall.Wherein, Water leg conveyor screw and oar blade type cooling vessel are used for carrying and cooled materials, and the first and second screw feeder air valves are used to get into follow-up equipment with controlling the material uniform and stable and stop the equipment fire gases that produces thermal material to follow material entering follow-up equipment.
For above-mentioned indirect heat exchange cooling system, the first screw feeder air valve is located at the material outlet of the equipment that produces material.
For above-mentioned indirect heat exchange cooling system, confession, the water return pipeline of the hollow wall of water leg conveyor screw are provided with thermometric and water-quantity regulating device.
For above-mentioned indirect heat exchange cooling system, confession, the water return pipeline of the hollow wall of oar blade type cooling vessel are provided with thermometric and water-quantity regulating device.
For above-mentioned indirect heat exchange cooling system, the hollow wall of oar blade type cooling vessel is hollow wall of rotating shaft of blade of arranging on it, and the rotating shaft that has the hollow wall forms hollow hot box.
For above-mentioned indirect heat exchange cooling system, hollow hot box comprises two.
For above-mentioned indirect heat exchange cooling system, the hollow wall of oar blade type cooling vessel is the hollow wall of cooler casing, and the cooler casing that has the hollow wall forms water leg.
A kind of cooling method of indirect heat exchange cooling system; Lower the temperature step by step from flow through the successively first screw feeder air valve, water leg conveyor screw, the second screw feeder air valve and oar blade type cooling vessel of the material of the equipment output that produces thermal material; Simultaneously, the refrigerant medium is carried in the hollow wall of the hollow wall of water leg conveyor screw and oar blade type cooling vessel respectively and through wall and material heat exchange.
For the cooling method of above-mentioned indirect heat exchange cooling system, streams is when the water leg conveyor screw, and the water leg conveyor screw passes through on-cycle refrigerant medium and material indirect heat exchange in the hollow wall in convey materials.
Cooling method for above-mentioned indirect heat exchange cooling system; Streams is when the oar blade type cooling vessel; On-cycle refrigerant medium and material heat exchange in the hollow wall of oar blade type cooling vessel; The rotation that is installed in the rotating shaft of oar blade type cooling vessel in-to-in simultaneously drives paddle material is stir-fried, and the material heat exchange is even.
For the cooling method of above-mentioned indirect heat exchange cooling system, when material got into the first or second screw feeder air valve, first or second screw feeder Air Valve Control material uniform and stable ground got into follow-up equipment and stops fire gases to follow material and gets into follow-up equipment.
Compared with prior art, the main advantage of technical scheme of the present invention is:
1. adopt the indirect heat exchange technology that does not contact that material is cooled, avoid material to be polluted with refrigerant, and the may command cooling-down effect, for the material following process provides stable raw material, safety in production, stable and high effective operation are played huge effect;
2. can be effectively with thermal material under closed environment, in course of conveying, cleaning, the subsequent handling that cools is temperature required efficiently, when reducing energy resource consumption, cost-cutting, guarantees long-term safety, the steady production of subsequent production operation.
Description of drawings
Fig. 1 is the composition constructional drawing of the described indirect heat exchange cooling system of one embodiment of the invention.
The specific embodiment
Output, cooling system with the high temperature carbon dust of from the coal equipment for gasification, discharging is example below, and technical scheme of the present invention is elaborated.
As shown in Figure 1; The first screw feeder air valve 1, water leg conveyor screw 2, the second screw feeder air valve 3 and oar blade type cooling vessel 4 that the indirect heat exchange cooling system of this embodiment comprises that the direction from coal equipment for gasification 6, exported according to material links to each other successively; Also comprise respectively the refrigerant medium system 5 that is communicated with the hollow wall of the hollow wall of water leg conveyor screw 2 and oar blade type cooling vessel 4, be used for realizing the circulation of refrigerant medium in the hollow wall.Thermal material under the environment of airtight not ingress of air, in course of conveying with refrigerant medium indirect heat exchange, thereby it is temperature required to reach subsequent handling.
The first screw feeder air valve 1 is located at the material outlet place of coal equipment for gasification 6 bottoms; The high temperature carbon dust gets into the first screw feeder air valve 1 by material outlet; An effect of the first screw feeder air valve 1 is to enter into follow-up equipment with controlling the material uniform and stable, and another effect is to stop the fire gases that produces after the coal gasification to follow carbon dust to enter into follow-up equipment.
Carbon dust enters into water leg conveyor screw 2 through screw feeder air valve 1.Water leg conveyor screw 2 is the first road equipment of the described indirect heat exchange cooling system of present embodiment; Can select the ability of this equipment according to the output of material and the degree of cooling; Promptly confirm the equipment transmission capacity, carry power of motor, heat interchanging area etc.; Can also be through controlling the degree that the time of delivery of carbon dust in this equipment regulated cooling, promptly heat-exchange time then can be accelerated transfer rate as if a small amount of cooling of need.The characteristics of water leg conveyor screw 2 are steadily efficient convey materials, can prevent that solid accumulation from overstocking, and influences the bulk density of material.Water leg conveyor screw 2 shells have the hollow wall, and wall is provided with the refrigerant Media Interface Connector as cooling heat transferring, the refrigerant medium in the confession of hollow wall, water return pipeline with the carbon dust indirect heat exchange, reach the effect that cools.Can on the confession of refrigerant medium, water return pipeline, thermometric and water-quantity regulating device be set, in order to monitoring confession, return water temperature and adjusting refrigerant medium internal circulating load.Monitoring supplies, return water temperature is in order to set the therefrom temperature the during output of pocket wall of refrigerant medium, through regulating in the hollow wall refrigerant medium internal circulating load to guarantee its design temperature (promptly controlling temperature through water at the flow that the unit time heat exchange heats up).Set highly more such as, carbon dust through the temperature that the degree of water leg conveyor screw 2 coolings is bigger when needing then with the refrigerant medium that therefrom the pocket wall is exported, thereby must be fast more with refrigerant medium on-cycle speed setting in the hollow wall.
2 pairs of carbon dusts of water leg conveyor screw carry out steadily evenly carrying, and solid accumulation do not occur and overstock situation.Water leg conveyor screw 2 can guarantee continuous, the uninterrupted cooling processing of carbon dust, and is in course of conveying, to handle, and saves a large amount of occupations of land of special-purpose cooling infrastructure.And, under the situation of secluding air, cool, prevent to contact and cause potential safety hazard and aerial contamination, and water leg and carbon dust cool off indirectly with air, refrigerant does not come in contact with carbon dust, thereby the material pollution condition can not occur.In addition, go back scalable cooling value to guarantee subsequent technique needed raw material temperature.
Carbon dust gets into the second screw feeder air valve 3 through water leg conveyor screw 2; The second screw feeder air valve 2 is arranged on the mass transport passage that connects water leg conveyor screw 2 and oar blade type cooling vessel 4; The effect of the second screw feeder air valve 3 is identical with the effect of the first screw feeder air valve 1, enters into follow-up equipment with promptly controlling the material uniform and stable and guarantees that the fire gases that carbon dust is carried secretly at course of conveying does not get into follow-up equipment.
Carbon dust gets into oar blade type cooling vessel 4 through the second screw feeder air valve 3.Oar blade type cooling vessel 4 comprises the hollow wall that can feed the refrigerant medium; Through wall material is cooled off; Wherein, be installed in the arranging rotating shaft of blade of oar blade type cooling vessel 4 in-to-ins and have the hollow wall, thereby rotating shaft forms hollow hot box; Cooler casing has the hollow wall, thereby cooler casing forms water leg.Hollow hot box is preferably two.The fuselage of oar blade type cooling vessel 4 has certain inclination angle from the inlet point to the discharging opening, like this, carbon dust is moving to discharging opening under the stirring of blade under the deadweight effect with on the hollow hot box gradually.In the work of oar blade type cooling vessel 4, hot box is not only main heat-transfer surface, and gyrates, and drives blade and stir-fries, and carbon dust is mixed to greatest extent, guarantees the homogeneity of cooling.Carbon dust gets into after the oar blade type cooling vessel 4, and under the effect of stir-frying of blade, the material heat exchange is even, the cooling homogeneous, and coefficient of heat transmission is high, guarantees the cooling-down effect of carbon dust in oar blade type cooling vessel 4 more efficiently.Similar with water leg conveyor screw 2, can on the confession of refrigerant medium, water return pipeline, thermometric and water-quantity regulating device be set, in order to monitoring confession, return water temperature and adjusting refrigerant medium internal circulating load.Monitoring supplies, return water temperature is in order to set the therefrom temperature the during output of pocket wall of refrigerant medium, through regulating in the hollow wall refrigerant medium internal circulating load to guarantee its design temperature (promptly controlling temperature through water at the flow that the unit time heat exchange heats up).Big more such as, carbon dust through the degree of oar blade type cooling vessel 4 coolings, then need with the refrigerant medium therefrom the temperature the during output of pocket wall set highly more, thereby must be fast more with refrigerant medium on-cycle speed setting in the hollow wall.
At last, the carbon dust of being seen off by oar blade type cooling vessel 4 will reach the required temperature of subsequent handling to be used for it.
The cooling method of indirect heat exchange cooling system of the present invention is to make after the material of coal equipment for gasification 6 output is flowed through the first screw feeder air valve 1, water leg conveyor screw 2, the second screw feeder air valve 3 and oar blade type cooling vessel 4 successively, arrives the subsequent production operation.Simultaneously, the refrigerant medium is carried and is carried out indirect heat exchange with the material of carrying to the hollow wall of the hollow wall of water leg conveyor screw 2 and oar blade type cooling vessel 4 respectively.Refrigerant medium and carbon dust indirect heat exchange, and have closed cycle of one's own, with the carbon dust direct contact, mutual pollution can not take place in refrigerant medium and stock media, and carbon dust is carried stable and continuous.Whole technology composition energy consumption is low, the equipment occupation of land is little, operation automation intensity high, the maintenance task is low, environmental protection and energy saving.
Be example just more than with the high temperature carbon dust; Indirect heat exchange cooling system of the present invention is applicable to the conveying and the cooling processing of other any solid materials; And except as the subsequent treatment system of coal equipment for gasification 6, can also be subsequent treatment system as the equipment of other any generation thermal materials.
Claims (11)
1. indirect heat exchange cooling system; It is characterized in that; Comprise according to the direction of material output from the equipment (6) that produces the thermal material continuous successively first screw feeder air valve (1), water leg conveyor screw (2), the second screw feeder air valve (3) and oar blade type cooling vessel (4); Also comprise respectively the refrigerant medium system (5) that is communicated with the hollow wall of the hollow wall of water leg conveyor screw (2) and oar blade type cooling vessel (4); Be used for realizing the circulation of refrigerant medium in the hollow wall; Wherein, water leg conveyor screw (2) and oar blade type cooling vessel (4) are used for carrying and cooled materials, and the first and second screw feeder air valves (1 and 3) are used to get into follow-up equipment with controlling the material uniform and stable and stop equipment (6) fire gases that produces thermal material to follow material entering follow-up equipment.
2. indirect heat exchange cooling system as claimed in claim 1 is characterized in that, the first screw feeder air valve (1) is located at the material outlet of the equipment (6) that produces material.
3. indirect heat exchange cooling system as claimed in claim 1 is characterized in that, confession, the water return pipeline of the hollow wall of water leg conveyor screw (2) are provided with thermometric and water-quantity regulating device.
4. indirect heat exchange cooling system as claimed in claim 1 is characterized in that, confession, the water return pipeline of the hollow wall of oar blade type cooling vessel (4) are provided with thermometric and water-quantity regulating device.
5. indirect heat exchange cooling system as claimed in claim 1 is characterized in that, the hollow wall of oar blade type cooling vessel (4) is hollow wall of rotating shaft of blade of arranging on it, and the rotating shaft that has the hollow wall forms hollow hot box.
6. indirect heat exchange cooling system as claimed in claim 5 is characterized in that, hollow hot box comprises two.
7. like claim 1 or 5 described indirect heat exchange cooling systems, it is characterized in that the hollow wall of oar blade type cooling vessel (4) is the hollow wall of cooler casing, the cooler casing that has the hollow wall forms water leg.
8. the cooling method of an indirect heat exchange cooling system; It is characterized in that; Lower the temperature step by step from flow through the successively first screw feeder air valve (1), water leg conveyor screw (2), the second screw feeder air valve (3) and oar blade type cooling vessel (4) of the material of equipment (6) output that produces thermal material; Simultaneously, the refrigerant medium is carried in the hollow wall of the hollow wall of water leg conveyor screw (2) and oar blade type cooling vessel (4) respectively and through wall and material heat exchange.
9. the cooling method of indirect heat exchange cooling system as claimed in claim 8; It is characterized in that; Streams when water leg conveyor screw (2), water leg conveyor screw (2) in convey materials through on-cycle refrigerant medium and material indirect heat exchange in the hollow wall.
10. the cooling method of indirect heat exchange cooling system as claimed in claim 8; It is characterized in that; Streams is when oar blade type cooling vessel (4); On-cycle refrigerant medium and material heat exchange in the hollow wall of oar blade type cooling vessel (4), the rotation that is installed in oar blade type cooling vessel (4) in-to-in rotating shaft simultaneously drives paddle material is stir-fried, and the material heat exchange is even.
11. the cooling method of indirect heat exchange cooling system as claimed in claim 8; It is characterized in that; When material got into the first or second screw feeder air valve (1 or 3), the first or second screw feeder air valve (1 or 3) control material uniform and stable ground got into follow-up equipment and stops fire gases to follow material and gets into follow-up equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100050340A CN102514938A (en) | 2012-01-06 | 2012-01-06 | Indirect-heat-exchange cooling system and cooling method thereof |
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| CN2012100050340A CN102514938A (en) | 2012-01-06 | 2012-01-06 | Indirect-heat-exchange cooling system and cooling method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104670858A (en) * | 2014-12-30 | 2015-06-03 | 湖南有色金属股份有限公司黄沙坪矿业分公司 | Viscose material feeding and distributing method and device thereof |
| CN112808069A (en) * | 2020-12-31 | 2021-05-18 | 安徽中宇磁材科技有限公司 | Tombarthite production is with high-efficient compounding device |
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Application publication date: 20120627 |