CN102718215B - Method for recovery of waste heat and one-step molding and conveyance of block-shaped object for spiral conveying structure - Google Patents
Method for recovery of waste heat and one-step molding and conveyance of block-shaped object for spiral conveying structure Download PDFInfo
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- CN102718215B CN102718215B CN201210194946.7A CN201210194946A CN102718215B CN 102718215 B CN102718215 B CN 102718215B CN 201210194946 A CN201210194946 A CN 201210194946A CN 102718215 B CN102718215 B CN 102718215B
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- calcium carbide
- cooling
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- shell
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 238000000465 moulding Methods 0.000 title abstract description 5
- 239000005997 Calcium carbide Substances 0.000 claims abstract description 49
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 239000011229 interlayer Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims description 3
- 102000010637 Aquaporins Human genes 0.000 claims description 2
- 108010063290 Aquaporins Proteins 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011344 liquid material Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 108091006146 Channels Proteins 0.000 description 3
- 241001504664 Crossocheilus latius Species 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- -1 401 Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Processing Of Solid Wastes (AREA)
- Earth Drilling (AREA)
Abstract
Disclosed is a method for recovery of waste heat and one-step molding and conveyance of a block-shaped object for a spiral conveying structure. The method includes steps of cooling, solidifying and crushing a calcium carbide melt output from a furnace outlet by a cooling, solidifying and crushing device; conveying a finished block-shaped calcium carbide product discharged from an output end of the cooling, solidifying and crushing device into a loaded material bin via a belt conveyor to be stored; and quantitatively outputting the calcium carbide from a metering discharge outlet at the lower end of the loaded material bin to a loading vehicle to be transported. The method has the advantages that the calcium carbide is automatically and integrally cooled, crushed, molded and loaded by the aid of a spiral conveying device, a conveying belt and the loaded material bin, powder formation caused by manually crushing the calcium carbide is prevented, workshop labor and occupied spaces are saved, and production efficiency is improved; by the aid of a waste heat recovery mechanism on the spiral conveying device, waste heat of liquid materials such as calcium carbide lumps can be effectively recovered and power consumption is greatly saved; and since the calcium carbide is cooled in a closed manner, safety is greatly improved.
Description
Technical field
The present invention relates to a kind of waste heat recovery and block once shaped transmission method of screw conveying structure,
Be mainly used in, in calcium carbide production process, the calcium carbide melt of coming out of the stove is carried out to cooling curing moulding, transmission.
Background technology
Calcium carbide is carbide of calcium, is mineral compound, and clear crystal, is important basic chemical raw materials, mainly for generation of acetylene gas.Also for organic synthesis, oxycetylene welding etc.
Calcium carbide finished product cooling and broken be a difficult problem for a long-term puzzlement calcium carbide enterprise.From electrothermal oven 2(, discharge electrode 1 is housed in it) the tapping temperature of the calcium carbide melt that flows out of plug for outlet 3 up to 1800 ℃-2200 ℃, the technique generally adopting is now for placing above a plurality of cooling pan 12(plug for outlet 3 and be provided with fire damper 10 and come out of the stove platform 11 at plug for outlet 3), calcium carbide melt directly enters cooling pan 12 after coming out of the stove, when cooling pan 12 fills with after liquid calcium carbide, travelling bogie is transported between cooling vehicle 13 through conveying track by cooling pan, arrive between cooling vehicle 13 after by cooling pan standing or with high wind to its cooling down.After liquid calcium carbide is cooling, become solid-state calcium carbide stone roller 14, meet the requirements of temperature, solid-state calcium carbide stone roller 14 is transported to crushing plant, carry out hand breaking.In cooling forming shattering process after above-mentioned calcium carbide melt is come out of the stove, there is following shortcoming:
1) cause the loss of a large amount of high temperature calcium carbide waste heats, also taken very large production space;
2) calcium carbide is longer cooling time that sticks together, and probably need just can carry out fragmentation after cooling through 26 hours, and production efficiency is low;
3) calcium carbide in nature or thundery rain process of cooling belongs to open placement, meets water intense reaction occurs immediately because of calcium carbide, has great potential safety hazard;
4) cooled calcium carbide sticks together needs hand breaking, and shattering process can cause 15 ~ 25% powder loss, the loss that has produced calcium carbide product on the one hand; Also increased on the other hand workshop man power and material's input.
Summary of the invention
The present invention aims to provide a kind of waste heat recovery and one-time formed device of block of screw conveying structure, the production efficiency existing with solution prior art is low, and area occupied is large, and workman's labour intensity is large, in situ temperature is high, the problem that wastes energy and have potential safety hazard.
Technical scheme of the present invention is: a kind of waste heat recovery of screw conveying structure and block once shaped transmission method, it is characterized in that, and comprise the following steps:
(1) by the calcium carbide melt of plug for outlet output by one cooling, solidify with shredder assembly carry out cooling, solidify and broken;
(2) from cooling, solidify the block calcium carbide finished product of discharging with shredder assembly output terminal and send in entrucking feed bin and store by a travelling belt transfer roller.
(3) from the metering discharge port of entrucking feed bin lower end, quantitatively exporting calcium carbide transports to material mover.
Described cooling, solidify with shredder assembly on adopt the mode of heat exchange to carry out energy recovery.
Described cooling, to solidify with shredder assembly be helix transporting device, comprise motor, step-down gear, shell, spiral, cutting steel knife and swivel joint, spiral coaxial rotation is arranged in columnar shell, the head end of screw shaft is coaxially connected with the output shaft of motor by step-down gear, and the tail end of screw shaft is connected with swivel joint; On the head end of this shell, be provided with opening for feed, be rear-endly below provided with discharge port, in this discharge port, be provided with cutting steel knife; On this spiral, be provided with spiral water circulation loop.
The water inlet of described spiral water circulation loop and water outlet are all arranged on swivel joint, and the flow through centre hole of screw shaft and the water interlayer of screw-blade of this spiral water circulation loop realized circulation and the heat exchange of water coolant.
At described shell, be provided with shell water interlayer, and be provided with cooling water connector at the two ends in its outside.
In described shell water interlayer, be divided into a plurality of rectangle aquaporins vertically.
Described shell is comprised of upper Lower Half, the fillet bolted on upper Lower Half both sides; Upper Lower Half is provided with described shell water interlayer and cooling water connector separately.
The present invention compares with traditional calcium carbide production technique, has following obvious advantage:
1, utilize helix transporting device, travelling belt and feed bin to realize cooling, broken moulding, entrucking one continuous line completes automatically, avoided the powder causing because of hand breaking calcium carbide to form, save taking of workshop manpower and place, greatly shortened calcium carbide and sticked together the cooling time, improved production efficiency;
2, utilize the waste heat recovering mechanism (water-flow circuit on shell and spiral) on helix transporting device, can effectively reclaim the calcium carbide heat energy that liquid material distributes such as stick together, the consumption of greatly having saved the energy.
3, the sealing of the process of cooling of calcium carbide is carried out, and has greatly improved security.
Accompanying drawing explanation
Fig. 1 is prior art processes process schematic diagram;
Fig. 2 is that the general arrangement that realizes technological process of the present invention forms schematic diagram;
Fig. 3 is the axial cross-sectional schematic of the structure of helix transporting device of the present invention;
Fig. 4 is the cross-sectional structure schematic diagram of the shell of helix transporting device of the present invention;
Fig. 5 is the A-A sectional view of spiral in Fig. 3;
Fig. 6 is the B-B sectional view (only including enclosure and discharge port) of Fig. 3;
Fig. 7 is the axial sectional structure schematic diagram of swivel joint of the present invention;
Fig. 8 is the packaging assembly schematic diagram of swivel joint of the present invention and screw shaft.
Description of reference numerals: 1, smelting furnace electrode, 2, smelting furnace body of heater, 3, plug for outlet, 4, helix transporting device, 40, shell water interlayer, 401, shell cooling water connector, 41, motor, 42, step-down gear, 43, shell, 431, shell fillet, 44, spiral, 440, screw shaft, 441, screw-blade, 442, blade water interlayer, 443, screw shaft centre hole, 444, blade water interlayer prosopyle, 445, blade water interlayer posticum, 446, bearing support (containing bearing), 45, cutting steel knife, 46, swivel joint, 461, inboardend, 462, spiral water-in, 463, spiral water outlet, 464, bearing, 465, sealing-ring, 466, rotary flange, 467, outer tube, 468, inner tube, 469, seal cartridge, 47, opening for feed, 48, discharge port, 49, shell joint flange, 5, travelling belt transfer roller, 6, entrucking feed bin, 7, motorized valve, 8, material mover, 10, fire damper, 11, the platform of coming out of the stove, 12, cooling pan, 13, between cooling vehicle, 14, calcium carbide stone roller.
Embodiment
Referring to Fig. 2～Fig. 8, the waste heat recovery of a kind of screw conveying structure of the present invention and block one-step moulding method, is characterized in that, comprises the following steps:
(1) by the calcium carbide melt of the plug for outlet of smelting furnace body of heater 2 bottoms 3 output by one cooling, solidify and shredder assembly (being helix transporting device 4) carry out cooling, solidify and broken.Calcium carbide melt enters from the opening for feed 47 of helix transporting device 4 head ends, the spiral 44 rotating drives calcium carbide melt to move to right-hand member, in moving process, the water coolant in its heat and spiral 44 and in shell 43 is carried out to heat exchange, the water coolant of circulation carries heat discharge and is fully utilized.Liquid calcium carbide, in course of conveying, will become solid-stately gradually, with strip form, be wrapped on screw shaft.Solidify calcium carbide cut steel knife 45 when arriving discharge port 48 and be divided into fragment, and discharge from discharge port 48.
(2) the block calcium carbide finished product of discharging from helix transporting device 4 discharge ports 48 is sent into the interior storage of entrucking feed bin 6 by a travelling belt transfer roller 5.
(3) by being arranged on the motorized valve 7 of entrucking feed bin 6 lower ends, to the quantitative output calcium carbide of material mover 8, transport to warehouse or user.
The opening for feed 47 of helix transporting device 4 of the present invention is located under the plug for outlet 3 of calcium carbide smelting furnace 2, can be according to field position and cooling temperature, arrange that one or more helix transporting device 4(docks from beginning to end), the travelling belt of travelling belt transfer roller 5 can adopt steel band, if temperature of charge is lower, can adopt belt.
The motor 41 of helix transporting device 4 is frequency control motor, can be according to liquid calcium carbide inflow velocity adjusting rotary speed, thus change the operational throughput of calcium carbide.
The two ends of the screw shaft 440 of helix transporting device 4 are supported on the two ends of shell 43 by bearing (seat) 446 and support (not shown), between moving parts and stationary parts, be absolute construction like this, while avoiding spiral work, drive the vibrations of the stationary parts such as shell, the reliability that improves whole device, increases the service life.
Referring to Fig. 3-Fig. 8, described helix transporting device 4 comprises motor 41, step-down gear 42, shell 43, spiral 44, cutting steel knife 45 and swivel joint 46, spiral 44 coaxial rotation are arranged in the shell 43 of drum type brake, spiral 44 is comprised of screw shaft 440 and screw-blade 441, and the head end of screw shaft 440 is coaxially connected with the output shaft of motor 41 by step-down gear 42; The tail end of screw shaft 440 is connected with swivel joint 46; On the head end of this shell 43, be provided with opening for feed 47, below shell 43 tail ends, be provided with discharge port 48, in this discharge port 48, be provided with cutting steel knife 45, the cutting steel knife 45 of this embodiment is fan-shaped (being not limited to this shape), its knife back is connected on the inwall of shell 43, the semicircle groove of cutter head and screw shaft 440 identical (referring to Fig. 6).
Shell 43 can coaxially link together by shell joint flange 49 and bolt by several sections.
Described shell 3 adopts steel plate, in shell 43 inner sides, can be provided with heat-stable material, the outside of shell 43 is provided with shell water interlayer 40, and be respectively equipped with cooling water connector 401 at the two ends of shell water interlayer 40, described shell water interlayer 40 is provided with a plurality of dividing plates vertically, form a plurality of rectangular channels (Fig. 4 and Fig. 6) vertically, at the two ends of rectangular channel, be parallel to the cooling water connector 401 at two ends.From the tail end water inlet of shell, water, along axis direction, flows out from the head end of shell.
Referring to Fig. 7 and Fig. 8, the function of described swivel joint 46 is being rotationally connected of realization and screw shaft 440, imports hermetically and derive the recirculated water of flowing through on spiral 44 simultaneously.Swivel joint 46 comprises inboardend 461, spiral water-in 462, spiral water outlet 463, bearing 464, sealing-ring 465, rotary flange 466, outer tube 467, inner tube 468 and seal cartridge 469, at right-hand member and the middle part of inboardend 461, is provided with water inlet 462 and water outlet 463.In the centre hole of inboardend 461, coaxial inner tube 468 and the outer tube 467 installed, leaves gap (backwater channel) and communicates with water outlet 463 between the two.The right-hand member of inner tube 468 docks with water inlet 462, and the left end of inner tube 468 stretches out the left end of outer tube left, and will between the left end outside of inner tube 468 and the inwall of screw shaft centre hole 443, seal by seal cartridge 469.Left end outside at outer tube 467 connects rotary flange 466, and rotary flange 466 is tightly connected with the right-hand member of screw shaft 440.The outside of outer tube 467 is connected with the center bore inner wall sealed rotational of inboardend 461 with sealing-ring 465 by bearing 464.Blade water interlayer posticum 445 is located on the screw shaft 440 on seal cartridge 469 right sides.
Spiral water circulation loop on spiral 44 is (as shown in the arrow in Fig. 7 and Fig. 8): recirculated water enters from water inlet 462, flow through the successively inner tube 468 in swivel joint 46 axle center, the centre hole 443 of screw shaft 440, from near the blade water interlayer prosopyle 444 screw shaft 440 head ends, enter blade water interlayer 442(Fig. 5 of screw-blade 441), from near the blade water interlayer posticum 445 screw shaft 440 tail ends, get back to the gap in centre hole 443(and inner tube 468 outsides), to the right by the gap between outer tube 467 and inner tube 468, finally from water outlet 463 efferent tract outer circulation loops (by thermal energy storage utilization), realize circulation and the heat exchange of water coolant.This recirculated water process, also can counter movement.
High temperature calcium carbide in the process that inner barrel is carried, constantly and screw shaft and screw-blade carry out heat exchange.In the process of heat exchange, liquid calcium carbide becomes solid-state gradually, constantly dissipated heat, cold water constantly absorbs heat, become hot water or hot steam, the hot water of outflow or steam can be used as the energy derive of generating or directly utilize hot water or steam, thereby have improved energy utilization efficiency.
By adjusting the pitch of screw-blade 441, thereby change the speed that blade absorbs heat.Screw-blade 441 also can adopt solid construction.
Claims (7)
1. the waste heat recovery of screw conveying structure and a block once shaped transmission method, is characterized in that, comprises the following steps:
(1) by the calcium carbide melt of plug for outlet output by one cooling, solidify with shredder assembly carry out cooling, solidify and broken;
(2) from cooling, solidify the block calcium carbide finished product of discharging with shredder assembly output terminal and send in entrucking feed bin and store by a travelling belt transfer roller;
Described cooling, to solidify with shredder assembly be helix transporting device, comprise motor, step-down gear, shell, spiral, cutting steel knife and swivel joint, spiral coaxial rotation is arranged in columnar shell, the head end of screw shaft is coaxially connected with the output shaft of motor by step-down gear, and the tail end of screw shaft is connected with swivel joint; On the head end of this shell, be provided with opening for feed, be rear-endly below provided with discharge port, in this discharge port, be provided with cutting steel knife; On this spiral, be provided with spiral water circulation loop.
2. the waste heat recovery of screw conveying structure according to claim 1 and block once shaped transmission method, is characterized in that, also comprises step:
(3) from the metering discharge port of entrucking feed bin lower end, quantitatively exporting calcium carbide transports to material mover.
3. the waste heat recovery of screw conveying structure according to claim 1 and block once shaped transmission method, is characterized in that, described cooling, solidify with shredder assembly on adopt the mode of heat exchange to carry out energy recovery.
4. the waste heat recovery of screw conveying structure according to claim 1 and block once shaped transmission method, it is characterized in that, the water inlet of described spiral water circulation loop and water outlet are all arranged on swivel joint, and the flow through centre hole of screw shaft and the water interlayer of screw-blade of this spiral water circulation loop realized circulation and the heat exchange of water coolant.
5. the waste heat recovery of screw conveying structure according to claim 1 and block once shaped transmission method, is characterized in that, at described shell, is provided with shell water interlayer, and be provided with cooling water connector at the two ends in its outside.
6. the waste heat recovery of screw conveying structure according to claim 5 and block once shaped transmission method, is characterized in that, is divided into a plurality of rectangle aquaporins vertically in described shell water interlayer.
7. the waste heat recovery of screw conveying structure according to claim 5 and block once shaped transmission method, is characterized in that, described shell is comprised of upper Lower Half, the fillet bolted on upper Lower Half both sides; Upper Lower Half is provided with described shell water interlayer and cooling water connector separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194946.7A CN102718215B (en) | 2012-06-14 | 2012-06-14 | Method for recovery of waste heat and one-step molding and conveyance of block-shaped object for spiral conveying structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194946.7A CN102718215B (en) | 2012-06-14 | 2012-06-14 | Method for recovery of waste heat and one-step molding and conveyance of block-shaped object for spiral conveying structure |
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| Publication Number | Publication Date |
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| CN102718215A CN102718215A (en) | 2012-10-10 |
| CN102718215B true CN102718215B (en) | 2014-04-09 |
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| CN105737621B (en) * | 2014-12-11 | 2017-12-08 | 宜兴市宇龙电炉成套设备有限公司 | A kind of system for accelerating cooling calcium carbide and reclaiming melting calcium carbide waste heat |
| CN109158200A (en) * | 2018-10-31 | 2019-01-08 | 上海成界制药设备有限公司 | A kind of modified form discharging device |
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| CN201108792Y (en) * | 2007-09-19 | 2008-09-03 | 山西三维集团股份有限公司 | Hermetic calcium carbide furnace gas purifying installation |
| CN101830464B (en) * | 2010-05-14 | 2012-02-22 | 山西亿众公用事业有限公司 | Cogeneration technique for producing calcium carbide and thermoelectricity by two-stage method, and device thereof |
| NZ606203A (en) * | 2010-07-08 | 2015-03-27 | Skyonic Corp | Carbon dioxide sequestration involving two-salt-based thermolytic processes |
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