CN111889205A - Calcium carbide broken dust recycling method - Google Patents
Calcium carbide broken dust recycling method Download PDFInfo
- Publication number
- CN111889205A CN111889205A CN202010790264.7A CN202010790264A CN111889205A CN 111889205 A CN111889205 A CN 111889205A CN 202010790264 A CN202010790264 A CN 202010790264A CN 111889205 A CN111889205 A CN 111889205A
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- China
- Prior art keywords
- calcium carbide
- dust
- inner end
- forming
- steps
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for recycling calcium carbide broken dust, and relates to the technical field of calcium carbide dust recycling. The method for recycling the calcium carbide crushed dust comprises the following steps: s1, crushing calcium carbide to obtain calcium carbide dust, and collecting the calcium carbide dust through a dust remover; s2, conveying the collected calcium carbide dust to the inner end of the stirring device through a conveying device; s3, adding an auxiliary agent into the inner end of the stirring device, and then starting the stirring device to stir and mix; s4, putting the stirred and mixed materials into the inner end of a prepressing device for prepressing; s5, putting the material subjected to the pre-pressing treatment into the inner end of the forming device for extrusion forming; and S6, collecting the omitted calcium carbide dust generated in the forming process and conveying the dust to the inner end of the pre-pressing device again. The method designed by the invention can be used for preparing the collected calcium carbide dust into blocks, so that the calcium carbide dust can be gasified again, the cost of the whole acetylene manufacturing process can be greatly reduced, the environment is not polluted, and the storage and the transportation are convenient.
Description
Technical Field
The invention relates to the technical field of calcium carbide dust recovery, in particular to a method for recycling calcium carbide broken dust.
Background
The main component of the calcium carbide is calcium carbide which is an inorganic compound and a white crystal, and the industrial product is a gray black block with a purple or gray section. When it meets water, it reacts violently to generate acetylene and generate heat. The calcium carbide is an important basic chemical raw material and is mainly used for generating acetylene gas. Also used for organic synthesis, oxyacetylene soldering, etc.
The wet acetylene process generally requires that the particle size of calcium carbide is 30-50 mm, and the produced calcium carbide is generally about 1000mm, so calcium carbide crushing is a primary process, calcium carbide dust can be generated in the calcium carbide crushing and transportation process, the part of calcium carbide still has activity, acetylene gas cannot be safely and effectively generated after the calcium carbide is collected by a dust remover, and the dust needs to be recycled by a method.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for recycling calcium carbide crushing dust, and solves the problems that calcium carbide dust is generated in the calcium carbide crushing and transportation processes at present and cannot be safely and effectively recycled in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for recycling broken calcium carbide dust comprises the following steps:
s1, crushing calcium carbide to obtain calcium carbide dust, and collecting the calcium carbide dust through a dust remover;
s2, conveying the collected calcium carbide dust to the inner end of the stirring device through a conveying device;
s3, adding an auxiliary agent into the inner end of the stirring device, and then starting the stirring device to stir and mix;
s4, putting the stirred and mixed materials into the inner end of a prepressing device for prepressing;
s5, putting the material subjected to the pre-pressing treatment into the inner end of the forming device for extrusion forming;
s6, collecting the omitted calcium carbide dust generated in the forming process and conveying the dust to the inner end of the pre-pressing device again;
and S7, conveying the calcium carbide dust subjected to extrusion treatment into a storage device through a conveying device for storage.
Preferably, the auxiliary agent in step S3 includes calcium carbonate and a binder, where the ratio of the calcium carbide dust to the calcium carbonate to the binder is 20: 2: 1.
preferably, the pre-pressing device in step S4 includes a screw propeller driven by the turbine and a conical funnel, the bottom end of the conical funnel is open, the screw propeller is disposed at the inner end of the conical funnel, when pre-pressing is performed, the mixture is put into the conical funnel, and then the mixture is extruded by the screw propeller to be discharged from the bottom end opening.
Preferably, the forming device in step S5 includes a forming mold and a pressing device, and the mixture subjected to the pre-pressing treatment is laid on the forming mold during forming, and then pressed and formed by the pressing device.
Preferably, in the step S5, a powdering prevention agent is sprayed into the forming mold during the forming process, and the ratio of the powdering prevention agent to the calcium carbide dust is 20: 1.
preferably, the pre-pressing device in the step S4 and the storage device in the step S7 are protected by introducing nitrogen.
Preferably, the conveying device in steps S2 and S7 is a conveyor belt.
(III) advantageous effects
The invention provides a method for recycling calcium carbide broken dust. The method has the following beneficial effects:
the method designed by the invention can be used for preparing the collected calcium carbide dust into blocks, is convenient to store and transport, and the prepared block calcium carbide dust can be gasified again, so that the cost of the whole acetylene manufacturing process can be greatly reduced, and the environment can not be polluted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
the embodiment of the invention provides a method for recycling calcium carbide broken dust, which comprises the following steps:
s1, crushing calcium carbide to obtain calcium carbide dust, and collecting the calcium carbide dust through a dust remover;
s2, conveying the collected calcium carbide dust to the inner end of the stirring device through a conveying device;
s3, adding an auxiliary agent into the inner end of the stirring device, wherein the auxiliary agent comprises calcium carbonate and an adhesive, and the proportion of the calcium carbide dust to the calcium carbonate to the adhesive is 20: 2: 1, starting a stirring device to stir and mix;
s4, putting the stirred and mixed materials into the inner end of a prepressing device for prepressing, wherein the prepressing device comprises a spiral propeller driven by a turbine and a conical funnel, the bottom end of the conical funnel is provided with an opening, the spiral propeller is arranged at the inner end of the conical funnel, and when the prepressing is carried out, the mixed materials are put into the conical funnel and then extruded to be discharged from the opening at the bottom end through the spiral propeller;
s5, putting the material subjected to the pre-pressing treatment into the inner end of a forming device for extrusion forming, wherein the forming device comprises a forming die and a pressing device, and laying the mixture subjected to the pre-pressing treatment on the forming die during forming, and then pressing and forming the mixture by the pressing device;
s6, collecting the omitted calcium carbide dust generated in the forming process, conveying the dust to the inner end of the pre-pressing device again, and ensuring that all materials are made into blocks without waste;
and S7, conveying the calcium carbide dust subjected to extrusion treatment into a storage device through a conveying device for storage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A method for recycling calcium carbide broken dust is characterized by comprising the following steps: the method comprises the following steps:
s1, crushing calcium carbide to obtain calcium carbide dust, and collecting the calcium carbide dust through a dust remover;
s2, conveying the collected calcium carbide dust to the inner end of the stirring device through a conveying device;
s3, adding an auxiliary agent into the inner end of the stirring device, and then starting the stirring device to stir and mix;
s4, putting the stirred and mixed materials into the inner end of a prepressing device for prepressing;
s5, putting the material subjected to the pre-pressing treatment into the inner end of the forming device for extrusion forming;
s6, collecting the omitted calcium carbide dust generated in the forming process and conveying the dust to the inner end of the pre-pressing device again;
and S7, conveying the calcium carbide dust subjected to extrusion treatment into a storage device through a conveying device for storage.
2. The method for recycling crushed calcium carbide dust according to claim 1, wherein the method comprises the following steps: the auxiliary agent in the step S3 comprises calcium carbonate and an adhesive, wherein the proportion of the calcium carbide dust to the calcium carbonate to the adhesive is 20: 2: 1.
3. the method for recycling crushed calcium carbide dust according to claim 1, wherein the method comprises the following steps: the pre-pressing device in the step S4 comprises a spiral propeller driven by the turbine and a conical funnel, the bottom end of the conical funnel is open, the spiral propeller is arranged at the inner end of the conical funnel, when pre-pressing treatment is carried out, the mixture is put into the conical funnel, and then the mixture is extruded to be discharged from the opening at the bottom end through the spiral propeller.
4. The method for recycling crushed calcium carbide dust according to claim 1, wherein the method comprises the following steps: the forming device in the step S5 includes a forming mold and a pressing device, and the mixture subjected to the pre-pressing treatment is laid on the forming mold during forming, and then is pressed and formed by the pressing device.
5. The method for recycling calcium carbide crushed dust according to claims 1 and 4, wherein the method comprises the following steps: spraying an anti-powdering agent into the forming die in the forming process in the step S5, wherein the ratio of the anti-powdering agent to the calcium carbide dust is 20: 1.
6. the method for recycling crushed calcium carbide dust according to claim 1, wherein the method comprises the following steps: and introducing nitrogen into the prepressing device in the step S4 and the storage device in the step S7 for protection.
7. The method for recycling crushed calcium carbide dust according to claim 1, wherein the method comprises the following steps: the conveying means in the steps S2 and S7 is a conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790264.7A CN111889205B (en) | 2020-08-07 | 2020-08-07 | Calcium carbide broken dust recycling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790264.7A CN111889205B (en) | 2020-08-07 | 2020-08-07 | Calcium carbide broken dust recycling method |
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| Publication Number | Publication Date |
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| CN111889205A true CN111889205A (en) | 2020-11-06 |
| CN111889205B CN111889205B (en) | 2022-07-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770696A (en) * | 1986-12-24 | 1988-09-13 | Aluminum Company Of America | Process for carbothermic production of calcium aluminide using calcium carbide |
| CN104139550A (en) * | 2014-06-13 | 2014-11-12 | 亿利资源集团有限公司 | Calcium carbide powder recovering method and equipment |
| CN104355312A (en) * | 2014-10-17 | 2015-02-18 | 许伟 | Method for producing calcium carbide by virtue of waste gas |
| CN109054896A (en) * | 2018-08-24 | 2018-12-21 | 青海盐湖工业股份有限公司 | The method that a kind of pair of calcium carbide carries out recycling and reusing |
| CN210874620U (en) * | 2019-07-26 | 2020-06-30 | 四川永祥股份有限公司 | Carbide storehouse and carbide dust recovery system thereof |
-
2020
- 2020-08-07 CN CN202010790264.7A patent/CN111889205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770696A (en) * | 1986-12-24 | 1988-09-13 | Aluminum Company Of America | Process for carbothermic production of calcium aluminide using calcium carbide |
| CN104139550A (en) * | 2014-06-13 | 2014-11-12 | 亿利资源集团有限公司 | Calcium carbide powder recovering method and equipment |
| CN104355312A (en) * | 2014-10-17 | 2015-02-18 | 许伟 | Method for producing calcium carbide by virtue of waste gas |
| CN109054896A (en) * | 2018-08-24 | 2018-12-21 | 青海盐湖工业股份有限公司 | The method that a kind of pair of calcium carbide carries out recycling and reusing |
| CN210874620U (en) * | 2019-07-26 | 2020-06-30 | 四川永祥股份有限公司 | Carbide storehouse and carbide dust recovery system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111889205B (en) | 2022-07-12 |
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