CN209815990U - Dry acetylene sludge acetylene gas and silicon iron recycling device - Google Patents
Dry acetylene sludge acetylene gas and silicon iron recycling device Download PDFInfo
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- CN209815990U CN209815990U CN201920525196.4U CN201920525196U CN209815990U CN 209815990 U CN209815990 U CN 209815990U CN 201920525196 U CN201920525196 U CN 201920525196U CN 209815990 U CN209815990 U CN 209815990U
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- carbide slag
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a dry-method carbide slag acetylene gas and silicon iron recycling device, which comprises a dry-method carbide slag pretreatment device, an acetylene gas generation device, a silicon iron recovery device and an acetylene gas purification device, wherein the dry-method carbide slag pretreatment device consists of an airtight spiral, a small bag-type dust remover, a carbide slag tank, a nitrogen tank, a Roots blower, an airflow dry heat device and a lifter, the airtight spiral and the small bag-type dust remover are arranged above the carbide slag tank, and the airflow dry heat device is arranged below the carbide slag tank; the utility model relates to a dry process carbide slag acetylene gas and ferrosilicon recycle device has solved effectively and has contained carbide and ferrosilicon in the carbide slag that adopts dry process production acetylene gas among the prior art, causes the wasting of resources, polluted environment and potential safety hazard. The problems that the ferrosilicon particles damage equipment in the utilization process of the carbide slag, the carbide slag cannot be used as a desulfurizer, resource waste is caused, and economic benefit is poor are solved, the service life of the equipment is prolonged, the resource waste is avoided, and the economic benefit is improved.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a dry acetylene sludge gas and silicon iron recycling device.
Background
China is a big country for producing PVC, and the calcium carbide method PVC plays an extremely important role in the domestic polyvinyl chloride industry. The acetylene gas production by the calcium carbide method comprises two processes of wet acetylene gas and dry acetylene gas, wherein the wet acetylene gas production process needs to consume a large amount of water and also can generate a large amount of carbide slag, waste water and waste gas. The wet-process carbide slag not only has high treatment cost and environmental pollution, but also does not meet the requirements of national environmental protection policies. The dry acetylene gas production is a novel production process developed in recent years, and compared with the wet acetylene gas production, the dry acetylene gas has the characteristics of less water consumption and low water content of the generated carbide slag. In addition, the dry acetylene gas has the advantages of high safety and good environmental protection. However, in the actual production process of the dry-method acetylene gas, process limitations exist, a small part of raw calcium carbide and ferrosilicon particles are remained in the carbide slag, and the remained raw calcium carbide causes resource waste, so that not only is the economic benefit of an enterprise affected, but also potential safety hazards exist. In the process of utilizing the carbide slag, the ferrosilicon particles cause certain harm to production equipment and product quality.
In patent No. 201810588796.5 entitled apparatus and process for treating dry acetylene sludge to recover acetylene gas, among the processes for treating dry acetylene sludge to recover acetylene gas, there is a process for introducing carbon dioxide gas to treat dry acetylene sludge to recover acetylene gas. Although acetylene gas is recovered, the main component of the carbide slag is calcium hydroxide which is a good desulfurizer, and the carbide slag cannot be used as a desulfurizer after being converted into calcium carbonate, so that resource waste is caused.
Therefore, a dry-method carbide slag acetylene gas and silicon iron recycling device with excellent performance becomes a problem to be solved urgently in the whole society.
SUMMERY OF THE UTILITY MODEL
The defect that exists to prior art, the to-be-solved problem of the utility model is that, a dry process carbide slag acetylene gas, ferrosilicon and desulfurizer recovery unit is provided to contain living carbide and ferrosilicon in the carbide slag of adopting dry process production acetylene gas among the solution prior art, cause the wasting of resources, polluted environment and potential safety hazard. The problems that the ferrosilicon particles damage equipment in the utilization process of the carbide slag, the carbide slag cannot be used as a desulfurizer, the resource waste is caused, and the economic benefit is poor are solved.
In order to solve the technical problem, the utility model provides a technical scheme does: a device for recycling acetylene gas and ferrosilicon from dry acetylene sludge comprises a dry acetylene sludge pretreatment device, an acetylene gas generation device, a ferrosilicon recovery device and an acetylene gas purification device, wherein the dry acetylene sludge pretreatment device consists of a closed spiral, a small bag-type dust collector, an acetylene sludge tank, a nitrogen tank, a Roots blower, an airflow dryer and a bucket elevator, the closed spiral and the small bag-type dust collector are arranged above the acetylene sludge tank, the airflow dryer is arranged below the acetylene sludge tank, one side of the airflow dryer is connected with the Roots blower, the other side of the airflow dryer is connected with the bucket elevator, and the Roots blower is connected with the nitrogen tank;
the acetylene gas generating device consists of a batching tank, a metering screw, a temperature sensor, a flowmeter, a discharging screw and an acetylene generator; the discharge screw is arranged below the acetylene generator, the acetylene generator is communicated with steam in a connecting way, a flow meter is arranged between the acetylene generator and the steam, the metering screw on the side wall of the acetylene generator is arranged above the steam pipeline, and the flow meter is connected with a regulating valve and the steam pipeline;
the ferrosilicon recovery device consists of a cyclone separator, a coal gas fan and a ferrosilicon bin, wherein the ferrosilicon bin is arranged below the cyclone separator, and the upper part of the ferrosilicon bin is connected with the lower part of the cyclone separator through a pipeline;
acetylene gas purifier comprises spray water pump, spray header, scrubbing tower, evacuation valve, air inlet valve, buffer tank, gas flowmeter, oxygen appearance, control valve, positive water seal, adverse water seal, spray water pump links to each other with spray header, spray header is on the upper portion of scrubbing tower, the control valve sets up the below at the scrubbing tower, spray water pump leads to the process water outward, scrubbing tower and buffer tank lead to nitrogen gas outward.
Further, the bucket elevator is a bucket elevator.
Further, the temperature sensors are provided with six groups or N groups and are arranged on the outer wall of the acetylene generator.
Further, be equipped with the batching jar on the measurement spiral, be equipped with the sack cleaner on the batching jar.
Further, the gas flowmeter is arranged on the outer side of the buffer tank, an oxygen-containing instrument is arranged between the positive water seal, the reverse water seal and the buffer tank, and an emptying valve and an air inlet valve are arranged between the oxygen-containing instrument and the buffer tank.
Furthermore, the evacuation valve and the intake valve are in interlocking control, the intake valve is closed when the evacuation valve is opened, and the evacuation valve is closed when the intake valve is opened.
Furthermore, a gas fan is arranged between the cyclone separator and the washing tower, nitrogen is communicated with the outside of a pipeline between the gas fan and the washing tower, nitrogen is communicated with the outside of a pipeline between the batching tank and the acetylene generator, nitrogen is communicated with the outside of the carbide slag tank, and nitrogen is communicated with the outside of the washing tower and the buffer tank, so that the production safety is ensured.
Further, the outlet below the silicon iron bin is connected with the bottom of the buffer tank through a pipeline.
Further, the upper part of the washing tower is communicated with a positive water seal.
Furthermore, the spray header is provided with a plurality of spray headers which are arranged linearly or annularly, so that the uniform spraying of the spray header is ensured.
Further, the gas fan can also be a water circulation vacuum pump or other gas conveying equipment.
Compared with the prior art, the utility model advantage lies in: the utility model relates to a dry process carbide slag acetylene gas and ferrosilicon recycle device has solved effectively and has contained carbide and ferrosilicon in the carbide slag that adopts dry process production acetylene gas among the prior art, causes the wasting of resources, polluted environment and potential safety hazard. The problems that the ferrosilicon particles damage equipment in the utilization process of the carbide slag, the carbide slag cannot be used as a desulfurizer, the resource waste is caused, and the economic benefit is poor are solved. In addition, the service life of the equipment is prolonged, the waste of resources is avoided, and the economic benefit is improved; nitrogen is introduced to the outside of the carbide slag tank, so that the production safety is ensured; the acetylene gas recovered from the carbide slag by the dry method has the advantages of high safety, good environmental protection property and the like; the utility model adopts the dry method acetylene sludge to recover the acetylene gas, thereby reducing the consumption of the raw material of the acetylene and saving the economic cost; and simultaneously, the utility model discloses a cost of manufacture is economical reasonable, excellent performance, suitable using widely in the society.
Drawings
Fig. 1 is a schematic structural diagram of a device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method.
As shown in the figure: 1. the device comprises a closed screw, 2 parts of a small bag-type dust remover, 3 parts of a carbide slag tank, 4 parts of a nitrogen tank, 5 parts of a Roots blower, 6 parts of an airflow dryer, 7 parts of a bucket elevator, 8 parts of a proportioning tank, 9 parts of a metering screw, 10 parts of a temperature sensor, 11 parts of a flowmeter, 12 parts of a discharge screw, 13 parts of an acetylene generator, 14 parts of a cyclone separator, 15 parts of a gas blower, 16 parts of a silicon iron bin, 17 parts of a spray water pump, 18 parts of a spray water pipe, 19 parts of a washing tower, 20 parts of an emptying valve, 21 parts of an air inlet valve, 22 parts of a buffer tank, 23 parts of a gas flowmeter, 24 parts of an oxygen-containing instrument, 25 parts of a control valve, 26 parts of a
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a dry method carbide slag acetylene gas and ferrosilicon recycle device when specifically implementing, including dry method carbide slag preprocessing device, acetylene gas generating device, ferrosilicon recovery device and acetylene gas purifier, dry method carbide slag preprocessing device comprises airtight spiral 1, little sack cleaner 2, carbide slag jar 3, nitrogen gas jar 4, roots's fan 5, air dryer 6, bucket elevator 7, airtight spiral 1, little sack cleaner 2 set up in carbide slag jar 3's top, air dryer 6 sets up in carbide slag jar 3's below, one side and roots's fan 5 of air dryer 6 are connected, the opposite side and the bucket elevator 7 of air dryer 6 are connected, roots's fan 5 is connected with nitrogen gas jar 4;
the acetylene gas generating device consists of a batching tank 8, a metering screw 9, a temperature sensor 10, a flowmeter 11, a discharging screw 12 and an acetylene gas generator 13; the discharge screw 12 is arranged below the acetylene generator 13, the acetylene generator 13 is communicated with steam, a flow meter 11 is arranged between the acetylene generator 13 and the steam, the metering screw 9 on the side wall of the acetylene generator 13 is arranged above a steam pipeline, and the flow meter 11 is connected with a regulating valve and the steam pipeline;
the ferrosilicon recovery device consists of a cyclone separator 14, a coal gas fan 15 and a ferrosilicon bin 16, wherein the ferrosilicon bin 16 is arranged below the cyclone separator 14, and the upper part of the ferrosilicon bin 16 is connected with the lower part of the cyclone separator 14 through a pipeline;
acetylene gas purifier comprises spray water pump 17, spray header 18, scrubbing tower 19, evacuation valve 20, air inlet valve 21, buffer tank 22, gas flowmeter 23, oxygen content appearance 24, control valve 25, positive water seal 26, contrary water seal 27, spray water pump 17 links to each other with spray header 18, spray header 18 is close to the upper portion of scrubbing tower 19, control valve 25 sets up the below at scrubbing tower 19, spray water pump 17 leads to the process water outward, scrubbing tower 19 and buffer tank 22 lead to nitrogen gas outward.
The hoister 7 is a bucket elevator, and the temperature sensors 10 are provided with six groups or N groups and are arranged on the outer wall of the acetylene generator 13. The metering screw 9 is provided with a batching tank 8, and the batching tank 8 is provided with a small bag-type dust collector 2. The gas flowmeter 23 is arranged on the outer side of the buffer tank 22, an oxygen-containing instrument 24 is arranged between the positive water seal 26, the reverse water seal 27 and the buffer tank 22, and an emptying valve 20 and an air inlet valve 21 are arranged between the oxygen-containing instrument 24 and the buffer tank 22. The evacuation valve 20 and the intake valve 21 are interlocked, the intake valve 21 being closed when the evacuation valve 20 is open, and the evacuation valve 20 being closed when the intake valve 21 is open. A gas fan 15 is arranged between the cyclone separator 14 and the washing tower 19, nitrogen is introduced to the outside of a pipeline between the gas fan 15 and the washing tower 19, nitrogen is introduced to the outside of a pipeline between the batching tank 8 and the acetylene generator 13, nitrogen is introduced to the outside of the carbide slag tank 3, and nitrogen is introduced to the outside of the upper parts of the washing tower 19 and the buffer tank 22. The outlet below the silicon iron bin 16 is connected with the bottom of the buffer tank 22 through a pipeline. The upper part of the washing tower 19 is communicated with a positive water seal 26. The spray header 8 is provided with a plurality of spray header pipes which are arranged linearly.
The utility model relates to a dry process carbide slag acetylene gas and ferrosilicon recycle device's concrete implementation process and principle as follows: the utility model discloses when using, including dry process carbide slag preprocessing device, acetylene gas generating device, ferrosilicon recovery unit and acetylene gas purifier. During normal production with dry process acetylene generator exhaust carbide slag, in sealed spiral 1 sent into carbide slag jar 3, carbide slag jar 3 exhaust carbide slag, through air flow dryer 6, air flow dryer 6 heats the back through steam or electricity to the air current, carries to bucket elevator 7 by carbide slag jar 3, and bucket elevator 7 is carried the carbide slag again and is deposited in batching jar 8 to the use of waiting to produce. The small bag-type dust collector 2 arranged on the carbide slag tank 3 can be used for collecting and discharging waste gas generated in the falling process of carbide slag, so that the pollution of the waste gas to the environment and the potential safety hazard of dust explosion are avoided; and a silicon iron bin 16 in the silicon iron recovery device is used for collecting silicon iron materials. Because the specific gravity of the carbide slag is different from that of the ferrosilicon, the carbide slag and the calcium carbide are separated at the lower part under the action of the cyclone separator 14 and enter the acetylene generator again for reaction, and the ferrosilicon is separated and collected in the ferrosilicon bin 16; the water pipes of the spray water pipe 18 are arranged linearly and annularly, so that the effect of uniform spraying is achieved, and the acetylene gas is favorably washed; the temperature sensor 10 can measure the reaction temperature of the acetylene generator 13 in real time, prevent the temperature from being abnormal and realize the full reaction of the calcium carbide; the carbide slag after reaction is discharged by adopting a closed spiral 12, and certain tightness is realized during discharging, so that safety accidents are avoided; the air inlet valve 21 and the exhaust valve 20 form linkage control, and when the oxygen content is larger than a set value, the air is exhausted immediately, so that the standard and safe acetylene gas enters the gas buffer 22.
The utility model relates to a dry process carbide slag acetylene gas and ferrosilicon recycle device has solved effectively, contains carbide and ferrosilicon in the carbide slag that adopts dry process production acetylene gas among the prior art, causes the wasting of resources, the polluted environment and has the potential safety hazard that acetylene gas constitutes. The problems that equipment is damaged in the utilization process of the carbide slag, the carbide slag cannot be used as a desulfurizing agent, so that resource waste is caused, and the economic benefit is poor are solved, the service life of the equipment is prolonged, the resource waste is avoided, and the economic benefit is improved; and nitrogen is introduced outside the carbide slag pipe and used for replacing oxygen in the pipeline, so that the production safety is ensured.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a dry process carbide slag acetylene gas and ferrosilicon recycle device which characterized in that: the device comprises a dry-method carbide slag pretreatment device, an acetylene gas generation device, a ferrosilicon recovery device and an acetylene gas purification device, wherein the dry-method carbide slag pretreatment device consists of a closed spiral (1), a small bag-type dust collector (2), a carbide slag tank (3), a nitrogen tank (4), a Roots blower (5), an air flow dryer (6) and a bucket elevator (7), the closed spiral (1) and the small bag-type dust collector (2) are arranged above the carbide slag tank (3), the air flow dryer (6) is arranged below the carbide slag tank (3), one side of the air flow dryer (6) is connected with the Roots blower (5), the other side of the air flow dryer (6) is connected with the bucket elevator (7), and the Roots blower (5) is connected with the nitrogen tank (4);
the acetylene gas generating device consists of a batching tank (8), a metering screw (9), a temperature sensor (10), a flowmeter (11), a discharging screw (12) and an acetylene generator (13); the discharging screw (12) is arranged below the acetylene generator (13), the acetylene generator (13) is communicated with steam in a connecting way, a flow meter (11) is arranged between the acetylene generator (13) and the steam, a metering screw (9) on the side wall of the acetylene generator (13) is arranged above a steam pipeline, and the flow meter (11) is connected with a regulating valve and the steam pipeline;
the ferrosilicon recovery device is composed of a cyclone separator (14), a coal gas fan (15) and a ferrosilicon bin (16), wherein the ferrosilicon bin (16) is arranged below the cyclone separator (14), and the upper part of the ferrosilicon bin (16) is connected with the lower part of the cyclone separator (14) through a pipeline;
acetylene gas purifier comprises spray water pump (17), spray header (18), scrubbing tower (19), evacuation valve (20), air inlet valve (21), buffer tank (22), gas flowmeter (23), oxygen appearance (24), control valve (25), positive water seal (26), contrary water seal (27), spray water pump (17) link to each other with spray header (18), spray header (18) are on the upper portion of scrubbing tower (19), control valve (25) set up the below at scrubbing tower (19), spray water pump (17) leads to the process water outward, scrubbing tower (19) and buffer tank (22) lead to nitrogen gas outward.
2. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the bucket elevator (7) is a fully-closed bucket elevator or a spiral elevator device.
3. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the temperature sensors (10) are provided with six groups or N groups and are arranged on the outer wall of the acetylene generator (13).
4. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: be equipped with batching jar (8) on measurement spiral (9), be equipped with little sack cleaner (2) on batching jar (8).
5. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the gas flowmeter (23) is arranged on the outer side of the buffer tank (22), an oxygen-containing instrument (24) is arranged between the positive water seal (26), the reverse water seal (27) and the buffer tank (22), and an emptying valve (20) and an air inlet valve (21) are arranged between the oxygen-containing instrument (24) and the buffer tank (22).
6. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the interlocking control is realized between the emptying valve (20) and the air inlet valve (21), the air inlet valve (21) is closed when the emptying valve (20) is opened, and the emptying valve (20) is closed when the air inlet valve (21) is opened.
7. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: a gas fan (15) is arranged between the cyclone separator (14) and the washing tower (19), nitrogen is introduced to the outside of a pipeline between the gas fan (15) and the washing tower (19), nitrogen is introduced to the outside of a pipeline between the batching tank (8) and the acetylene generator (13), nitrogen is introduced to the outside of the carbide slag tank (3), and nitrogen is introduced to the outside of the tops of the washing tower (19) and the buffer tank (22).
8. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: and an outlet below the silicon iron bin (16) is connected with the bottom of the buffer tank (22) through a pipeline.
9. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the upper part of the washing tower (19) is communicated with a positive water seal (26).
10. The device for recycling acetylene gas and silicon iron from acetylene sludge by a dry method according to claim 1, which is characterized in that: the spray header (18) is arranged in the washing tower (19), and a plurality of spray headers (18) are arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920525196.4U CN209815990U (en) | 2019-04-18 | 2019-04-18 | Dry acetylene sludge acetylene gas and silicon iron recycling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920525196.4U CN209815990U (en) | 2019-04-18 | 2019-04-18 | Dry acetylene sludge acetylene gas and silicon iron recycling device |
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| CN209815990U true CN209815990U (en) | 2019-12-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922045A (en) * | 2020-08-07 | 2020-11-13 | 北京瑞思达化工设备有限公司 | Process for recovering ferrosilicon from waste residues |
| CN114950956A (en) * | 2022-04-29 | 2022-08-30 | 林景辉 | System and method for separating silicon iron and calcium carbide from carbide slag |
| CN116200212A (en) * | 2023-05-06 | 2023-06-02 | 中国科学院过程工程研究所 | Device and method for dry carbide slag treatment by using impinging stream |
-
2019
- 2019-04-18 CN CN201920525196.4U patent/CN209815990U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922045A (en) * | 2020-08-07 | 2020-11-13 | 北京瑞思达化工设备有限公司 | Process for recovering ferrosilicon from waste residues |
| CN114950956A (en) * | 2022-04-29 | 2022-08-30 | 林景辉 | System and method for separating silicon iron and calcium carbide from carbide slag |
| CN116200212A (en) * | 2023-05-06 | 2023-06-02 | 中国科学院过程工程研究所 | Device and method for dry carbide slag treatment by using impinging stream |
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