CN102718215A - 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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- CN102718215A CN102718215A CN2012101949467A CN201210194946A CN102718215A CN 102718215 A CN102718215 A CN 102718215A CN 2012101949467 A CN2012101949467 A CN 2012101949467A CN 201210194946 A CN201210194946 A CN 201210194946A CN 102718215 A CN102718215 A CN 102718215A
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- calcium carbide
- waste heat
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- conveying structure
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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
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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 the calcium carbide production process calcium carbide melt of coming out of the stove is carried out cooling curing moulding, transmission.
Background technology
Calcium carbide is a carbide of calcium, is mineral compound, and clear crystal is important basic chemical raw materials, is mainly used in the generation acetylene gas.Also be used for organic synthesis, oxycetylene welding etc.
The cooling of calcium carbide finished product is a long-term difficult problem that perplexs calcium carbide enterprise with fragmentation.From the tapping temperature of the plug for outlet 3 effusive calcium carbide melts of electrothermal oven 2 (discharge electrode 1 is housed in it) up to 1800 ℃-2200 ℃; The technology that generally adopts now is for placing a plurality of cooling pans 12 (be provided with fire damper 10 above the plug for outlet 3 and come out of the stove platform 11) at plug for outlet 3; After coming out of the stove, the calcium carbide melt directly gets into cooling pan 12; After cooling pan 12 fills with liquid calcium carbide; Travelling bogie is transported to cooling workshop 13 through conveying track with cooling pan, arrive behind the cooling workshop 13 cooling pan left standstill or with high wind to its cooling cooling.After liquid calcium carbide 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.There is following shortcoming in the cooling forming shattering process after above-mentioned calcium carbide melt is come out of the stove:
1) causes the loss of a large amount of high temperature calcium carbide waste heats, also taken very big production space;
2) calcium carbide is longer cooling time that sticks together, and probably needs after cooling in 26 hours, just can carry out fragmentation, and production efficiency is low;
3) calcium carbide in nature or the high wind cool down belongs to open placement, meets water because of calcium carbide intense reaction takes place immediately, 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 the calcium carbide product on the one hand; Also increased workshop man power and material's input on the other hand.
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 that exists with the solution prior art is low, and area occupied is big, and working strength of workers is big; 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 may further comprise the steps:
(1) with the calcium carbide melt of plug for outlet output through a cooling, solidify with shredder assembly and cool off, solidify and fragmentation;
(2) from cooling, solidify the block calcium carbide finished product of discharging and send in the entrucking feed bin through a travelling belt transfer roller and store with the shredder assembly output terminal.
(3) quantitatively exporting calcium carbide from the metering discharge port of entrucking feed bin lower end transports to lorry.
Described cooling, solidify with shredder assembly on adopt the mode of heat exchange to carry out energy recovery.
Described cooling, solidify with shredder assembly be helix transporting device; Comprise motor, step-down gear, shell, spiral, cutting steel knife and swivel joint; The spiral coaxial rotation is installed in the columnar shell; The head end of screw shaft is connected with the output shaft of motor is coaxial through 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 provided with discharge port below rear-end, in this discharge port, be provided with the cutting steel knife; On this spiral, be provided with the spiral water-flow circuit.
The water inlet of described spiral water-flow circuit and water outlet all are arranged on the swivel joint, and the flow through water interlayer of centre hole and screw-blade of screw shaft of this spiral water-flow circuit is realized the circulation and the heat exchange of water coolant.
Be provided with the shell water interlayer at described shell, and be provided with the water coolant interface at the two ends in its outside.
Be divided into a plurality of rectangle aquaporins vertically in the described shell water interlayer.
Described shell is made up of last Lower Half, and the fillet on last Lower Half both sides is used bolted; Last Lower Half is provided with described shell water interlayer and water coolant interface separately.
The present invention and the traditional calcium carbide technology of coming out of the stove is compared, and has following tangible advantage:
1, utilize helix transporting device, travelling belt and feed bin to realize that cooling, broken moulding, entrucking one continuous line are accomplished automatically; The powder of having avoided causing because of the hand breaking calcium carbide forms; Save taking of workshop manpower and place, shortened calcium carbide greatly and sticked together the refrigerative time, improved production efficiency;
2, utilize waste heat recovering mechanism (water-flow circuit on shell and the spiral) on the helix transporting device, can effectively reclaim the calcium carbide heat energy that liquid material distributes such as stick together, the consumption of having practiced thrift the energy greatly.
3, the sealing of the process of cooling of calcium carbide is carried out, and has improved security greatly.
Description of drawings
Fig. 1 is a prior art processes process synoptic diagram;
Fig. 2 is that the general arrangement that realizes technological process of the present invention constitutes synoptic 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 synoptic diagram of the shell of helix transporting device of the present invention;
Fig. 5 is the A-A sectional view of spiral among Fig. 3;
Fig. 6 is the B-B sectional view (including only enclosure and discharge port) of Fig. 3;
Fig. 7 is the axial sectional structure synoptic diagram of swivel joint of the present invention;
Fig. 8 is the packaging assembly synoptic diagram of swivel joint of the present invention and screw shaft.
Description of reference numerals: 1, smelting furnace electrode, 2, the smelting furnace body of heater, 3, plug for outlet, 4, helix transporting device, 40, the shell water interlayer, 401, shell water coolant interface; 41, motor, 42, step-down gear, 43, shell, 431, the shell fillet, 44, spiral, 440, screw shaft; 441, screw-blade, 442, the blade water interlayer, 443, the screw shaft centre hole, 444, blade water interlayer prosopyle, 445, blade water interlayer posticum, 446, chock (containing bearing); 45, cutting steel knife, 46, swivel joint, 461, inboardend, 462, the spiral water-in, 463, the spiral water outlet, 464, bearing; 465, sealing-ring, 466, rotary flange, 467, outer tube, 468, interior pipe, 469, seal cartridge, 47, opening for feed; 48, discharge port, 49, the shell joint flange, 5, the travelling belt transfer roller, 6, the entrucking feed bin, 7, motorized valve, 8, lorry; 10, fire damper, 11, the platform of coming out of the stove, 12, cooling pan, 13, the cooling workshop, 14, the 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, may further comprise the steps:
(1) with the calcium carbide melt of the plug for outlet of smelting furnace body of heater 2 bottoms 3 outputs through a cooling, solidify and shredder assembly (being helix transporting device 4) cools off, solidifies and fragmentation.The calcium carbide melt gets into from the opening for feed 47 of helix transporting device 4 head ends; The spiral 44 that rotates drives the calcium carbide melt and moves to right-hand member; In moving process with in its heat and the spiral 44 with shell 43 in water coolant carry out heat exchange, the round-robin water coolant carries heat discharge and is fully utilized.Liquid calcium carbide will become solid-stately in course of conveying gradually, be wrapped on the screw shaft with the strip form.Solidify calcium carbide and when arriving discharge port 48, be cut steel knife 45 and be divided into fragment, and discharge from discharge port 48.
The block calcium carbide finished product of (2) discharging from helix transporting device 4 discharge ports 48 is sent in the entrucking feed bin 6 through a travelling belt transfer roller 5 and is stored.
(3) quantitatively export calcium carbide through the motorized valve 7 that is installed in entrucking feed bin 6 lower ends to lorry 8 and 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 refrigerative temperature; Arrange one or more helix transporting device 4 (head and the tail butt joint); 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 a frequency control motor, can regulate rotating speed according to liquid calcium carbide inflow velocity, thereby changes 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 through bearing (seat) 446 and support (not shown); Be absolute construction like this between moving parts and the stationary parts; Drive the vibrations of stationary parts such as shell when avoiding spiral work; Improve the safety of whole device, increase 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 installed in the shell 43 of drum type brake; Spiral 44 is made up of screw shaft 440 and screw-blade 441, and the head end of screw shaft 440 is connected with the output shaft of motor 41 is coaxial through 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), and 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 link together with bolt is coaxial through shell joint flange 49 by several sections.
Described shell 3 adopts steel plate; Can be provided with heat-stable material in shell 43 inboards; The outside of shell 43 is provided with shell water interlayer 40, and is respectively equipped with water coolant interface 401 at the two ends of shell water interlayer 40, and 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, be parallel to the water coolant interface 401 at two ends at the two ends of rectangular channel.From the tail end water inlet of shell, water is along axis direction, from the head end outflow of shell.
Referring to Fig. 7 and Fig. 8, the function of described swivel joint 46 is to realize and being rotationally connected of screw shaft 440, and imports and derive simultaneously the recirculated water of flowing through on the spiral 44 hermetically.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, interior pipe 468 and seal cartridge 469, is provided with water inlet 462 and water outlet 463 at the right-hand member and the middle part of inboardend 461.Pipe 468 and outer tube 467 in the coaxial installation in the centre hole of inboardend 461 leave gap (backwater channel) and communicate with water outlet 463 between the two.In pipe 468 right-hand member dock with water inlet 462, the left end of interior pipe 468 stretches out the left end of outer tube left, and through seal cartridge 469 with sealing outside the left end of interior pipe 468 and between the inwall of screw shaft centre hole 443.The 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 through bearing 464.Blade water interlayer posticum 445 is located on the screw shaft 440 on seal cartridge 469 right sides.
Spiral water-flow circuit on the spiral 44 is (shown in the arrow among Fig. 7 and Fig. 8): recirculated water gets into from water inlet 462; Flow through successively swivel joint 46 axle center interior pipe 468, screw shaft 440 centre hole 443, near the blade water interlayer prosopyle screw shaft 440 head ends 444 get into screw-blades 441 blade water interlayer 442 (Fig. 5), near the blade water interlayer posticum 445 screw shaft 440 tail ends get back to centre hole 443 (and the gap in interior pipe 468 outsides), to the right through the gap between outer tube 467 and the interior pipe 468; From water outlet 463 efferent tract outer circulation loops (with the thermal energy storage utilization), realize the circulation and the heat exchange of water coolant at last.This recirculated water process also can reversely be carried out.
The high temperature calcium carbide in the process that 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, effusive hot water or steam can be used as the energy derive of generating or directly utilize hot water or steam, thereby have improved energy utilization efficiency.
Through the pitch of adjustment screw-blade 441, thereby change the speed that blade absorbs heat.Screw-blade 441 also can adopt solid construction.
Claims (8)
1. the waste heat recovery of a screw conveying structure and block once shaped transmission method is characterized in that, may further comprise the steps:
(1) with the calcium carbide melt of plug for outlet output through a cooling, solidify with shredder assembly and cool off, solidify and fragmentation;
(2) from cooling, solidify the block calcium carbide finished product of discharging and send in the entrucking feed bin through a travelling belt transfer roller and store with the shredder assembly output terminal.
2. the waste heat recovery of screw conveying structure according to claim 1 and block once shaped transmission method is characterized in that, also comprise step:
(3) quantitatively exporting calcium carbide from the metering discharge port of entrucking feed bin lower end transports to lorry.
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; Described cooling, solidify with shredder assembly be helix transporting device, comprise motor, step-down gear, shell, spiral, cutting steel knife and swivel joint, the spiral coaxial rotation is installed in the columnar shell; The head end of screw shaft is connected with the output shaft of motor is coaxial through 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 provided with discharge port below rear-end, in this discharge port, be provided with the cutting steel knife; On this spiral, be provided with the spiral water-flow circuit.
5. the waste heat recovery of screw conveying structure according to claim 4 and block once shaped transmission method; It is characterized in that; The water inlet of described spiral water-flow circuit and water outlet all are arranged on the swivel joint, and the flow through water interlayer of centre hole and screw-blade of screw shaft of this spiral water-flow circuit is realized the circulation and the heat exchange of water coolant.
6. the waste heat recovery of screw conveying structure according to claim 4 and block once shaped transmission method is characterized in that, are provided with the shell water interlayer at described shell, and are provided with the water coolant interface at the two ends in its outside.
7. the waste heat recovery of screw conveying structure according to claim 6 and block once shaped transmission method is characterized in that, are divided into a plurality of rectangle aquaporins vertically in the described shell water interlayer.
8. the waste heat recovery of screw conveying structure according to claim 6 and block once shaped transmission method is characterized in that described shell is made up of last Lower Half, and the fillet on last Lower Half both sides is used bolted; Last Lower Half is provided with described shell water interlayer and water coolant interface 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 true CN102718215A (en) | 2012-10-10 |
| CN102718215B CN102718215B (en) | 2014-04-09 |
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| CN201210194946.7A Expired - Fee Related 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737621A (en) * | 2014-12-11 | 2016-07-06 | 宜兴市宇龙电炉成套设备有限公司 | System for accelerating cooling of calcium carbide and recycling waste heat of melted calcium carbide |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101830464A (en) * | 2010-05-14 | 2010-09-15 | 山西亿众公用事业有限公司 | Technique for producing calcium carbide and cogeneration by two-stage method and device thereof |
| WO2012006601A2 (en) * | 2010-07-08 | 2012-01-12 | Skyonic Corporation | Carbon dioxide sequestrations involving two-salt-based thermolytic processes |
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2012
- 2012-06-14 CN CN201210194946.7A patent/CN102718215B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101830464A (en) * | 2010-05-14 | 2010-09-15 | 山西亿众公用事业有限公司 | Technique for producing calcium carbide and cogeneration by two-stage method and device thereof |
| WO2012006601A2 (en) * | 2010-07-08 | 2012-01-12 | Skyonic Corporation | Carbon dioxide sequestrations involving two-salt-based thermolytic processes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737621A (en) * | 2014-12-11 | 2016-07-06 | 宜兴市宇龙电炉成套设备有限公司 | System for accelerating cooling of calcium carbide and recycling waste heat of melted calcium carbide |
| 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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| CN102718215B (en) | 2014-04-09 |
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Granted publication date: 20140409 Termination date: 20160614 |