CN207619278U - The system for handling carbide slag - Google Patents
The system for handling carbide slag Download PDFInfo
- Publication number
- CN207619278U CN207619278U CN201721442745.9U CN201721442745U CN207619278U CN 207619278 U CN207619278 U CN 207619278U CN 201721442745 U CN201721442745 U CN 201721442745U CN 207619278 U CN207619278 U CN 207619278U
- Authority
- CN
- China
- Prior art keywords
- carbide slag
- entrance
- dehydration
- outlet
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of system of processing carbide slag, which includes：Separator, the separator have carbide slag slurry entrance, impurities outlet and the outlet of purification rear slurry；Dehydration device, the dehydration device are exported with carbide slag after purification rear slurry entrance, water out and dehydration, and the purification rear slurry entrance is connected with purification rear slurry outlet；Breaker is dried, the drying breaker has carbide slag entrance, high-temperature gas entrance and carbide slag powder outlet after dehydration, and carbide slag entrance is connected with carbide slag outlet after the dehydration after the dehydration；Decomposer, gas vent after the decomposer has carbide slag powder entrance, calcium lime powder outlet and decomposes, the carbide slag powder entrance are connected with the carbide slag powder outlet.The system realizes the purification to carbide slag using physical method, while the higher calcium lime powder of calcium oxide content can be obtained, economical and environmentally friendly remarkable benefit.
Description
Technical field
The utility model belongs to carbide slag and recycles field, specifically, the utility model is related to handle carbide slag to be
System.
Background technology
The up to ten million ton carbide slags of the annual output in China at present, and the stacking of strong basicity carbide slag does not only take up a large amount of soils,
And because carbide slag is easy to be lost in diffusion, water resource, alkalization soil near pollution stacking place stack be also possible to wind for a long time
Ash has been done, surrounding enviroment are polluted.Therefore, the recycling of carbide slag is extremely urgent.Traditional carbide slag is mainly for the production of water
The building materials such as mud, but cement industry excess capacity is serious, economic benefit is depressed.
Therefore, the technology of existing processing carbide slag is further improved.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of system of processing carbide slag with a novel purpose.The system is realized using physical method to carbide slag
Purification, while the higher calcium lime powder of calcium oxide content can be obtained, which can make directly as calcium carbide raw materials for production
With, a large amount of soils are occupied to not only solve the problems, such as that carbide slag is stacked for a long time, but also realize the recycling of carbide slag,
Economical and environmentally friendly remarkable benefit.
In the one side of the utility model, the utility model proposes a kind of systems of processing carbide slag, according to this reality
With novel embodiment, which includes：
Separator, the separator have carbide slag slurry entrance, impurities outlet and the outlet of purification rear slurry；
Dehydration device, the dehydration device is exported with carbide slag after purification rear slurry entrance, water out and dehydration, described
Purification rear slurry entrance is connected with purification rear slurry outlet；
Breaker is dried, the drying breaker has carbide slag entrance, high-temperature gas entrance and calcium carbide after dehydration
Slag powder outlet, carbide slag entrance is connected with carbide slag outlet after the dehydration after the dehydration；
Decomposer, gas vent after the decomposer has carbide slag powder entrance, calcium lime powder outlet and decomposes,
The carbide slag powder entrance is connected with the carbide slag powder outlet.
According to the system of the processing carbide slag of the utility model embodiment by separator by physical property and hydroxide
Impurity removal in the discrepant carbide slag of calcium can be aoxidized then after further dehydration, drying broken and resolution process
The high calcium lime powder of calcium content.The purification to carbide slag can be realized using Physical Separation Technology as a result, while being obtained after decomposition
To the higher calcium lime powder of calcium oxide content, which can use directly as calcium carbide raw materials for production, to not only solve
Carbide slag stacks the problem of occupying a large amount of soils for a long time, and realizes the recycling of carbide slag, is incited somebody to action with traditional technology
Carbide slag is compared for producing the building materials such as cement, the scheme of the application economical and environmentally friendly remarkable benefit.
In addition, can also have following additional skill according to the system of the processing carbide slag of the utility model above-described embodiment
Art feature：
Optional, the separator is hydrocyclone or centrifuge.Be conducive to as a result, by impurity from carbide slag slurry
In isolate.
Optional, the dehydration device is filter press.Be conducive to obtain carbide slag after the lower dehydration of moisture content as a result,.
It is optional, be disposed with heating component in the decomposer, the heating component be selected from radiant tube, heating rod and
At least one of fuel nozzle.It is advantageously implemented the efficient-decomposition of carbide slag powder as a result,.
Optional, the decomposer is vertical heater or rotary kiln.The efficient of carbide slag powder can be further realized as a result,
It decomposes.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the system structure diagram of the processing carbide slag of one embodiment according to the present utility model；
Fig. 2 is the method for the system processing carbide slag using processing carbide slag of one embodiment according to the present utility model
Flow diagram.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the one side of the utility model, the utility model proposes a kind of systems of processing carbide slag, according to this reality
With novel embodiment, with reference to figure 1, which includes：Separator 100, dehydration device 200 are dried breaker 300 and are divided
Solve device 400.
Embodiment according to the present utility model, separator 100 have carbide slag slurry entrance 101,102 and of impurities outlet
Rear slurry outlet 103 is purified, and suitable for carbide slag slurry is carried out separating treatment, to obtain impurity and purification rear slurry.Tool
Body, carbide slag slurry concentration (without adjustment if upstream is wet method acetylene unit) is first adjusted, the calcium carbide met the requirements is obtained
Dreg slurry, the wherein mass concentration of carbide slag slurry are not less than 55wt%, are then fed into separator, according to impurity titanium dioxide
The difference of silicon, ferrosilicon etc. and calcium hydroxide physical property carries out impurity removal, and the purification rear slurry obtained after separation is sent into follow-up
Unit.
One embodiment according to the present utility model, separator can be hydrocyclone or centrifuge.It is advantageous as a result,
In the difference for making full use of impurity and calcium hydroxide physical property in carbide slag slurry, the impurity in carbide slag slurry is removed,
Obtain purification rear slurry.
The moisture content of further embodiment according to the present utility model, carbide slag slurry can be 50-80wt%.Inventor
It was found that if the moisture content of carbide slag slurry is too low, carbide slag slurry is more sticky, is unfavorable for the sorting removing of impurity；And if
The moisture content of carbide slag slurry is excessively high, then waste water resource, while smaller to the treating capacity of carbide slag.
Embodiment according to the present utility model, dehydration device 200 have purification rear slurry entrance 201, water out 202 and take off
Carbide slag outlet 203 after water, purification rear slurry entrance 201 are connected with purification rear slurry outlet 103, and suitable for that will purify rear slurry
It is carried out dehydrating, to obtain carbide slag after water and dehydration.Specifically, the purification rear slurry from separator is passed through de-
Water installations remove most of moisture, and carbide slag is sent into subsequent cell after obtained dehydration.
One embodiment according to the present utility model, dehydration device can be filter press.It can will purify in rear slurry as a result,
Most of water removal.
Further embodiment according to the present utility model, the moisture content of carbide slag can be not more than 45wt% after dehydration.Hair
A person of good sense has found, if the moisture content of carbide slag is excessively high after dehydration, will increase the energy consumption of follow-up drying fragmentation cell, reduces entire work
The economy of skill.
Embodiment according to the present utility model, drying breaker 300 have carbide slag entrance 301, High Temperature Gas after dehydration
Body entrance 302 and carbide slag powder outlet 303, carbide slag entrance 301 is connected with carbide slag outlet 203 after dehydration after dehydration, and
It is dried and is crushed under the action of high-temperature gas suitable for carbide slag after being dehydrated, to obtain carbide slag powder.Specifically,
Using carbide slag after high-temperature gas thermal dehydration to 100 degrees Celsius or more, the moisture in carbide slag after dehydration is dried, simultaneously will
It is broken, obtains carbide slag powder.
One embodiment according to the present utility model, high-temperature gas can be the high temperature cigarette that temperature is not less than 600 degrees Celsius
Gas or inert gas.The drying to carbide slag after dehydration can be realized as a result, and high-temperature flue gas or inert gas can be made full use of
Sensible heat.
There is carbide slag powder entrance 401, calcium lime powder to export for embodiment according to the present utility model, decomposer 400
402 are connected with gas vent 403 after decomposition, carbide slag powder entrance 401 with carbide slag powder outlet 303, and are suitable for calcium carbide
Ground-slag material carries out resolution process, to obtain gas after calcium lime powder and decomposition.It is decomposed specifically, carbide slag powder entrance is located at
The middle and upper part of device, gas vent is located at the top of decomposer after decomposition so that after decomposing obtained decomposition in decomposer
Gas is contacted with carbide slag powder from bottom to top, is preheated carbide slag powder using gas sensible heat after decomposition, is improved device heat utilization
Efficiency, carbide slag powder are sent using high-temperature gas as carrier gas to decomposer, and decomposer is interior to use indirect heating manner, will be electric
Rock ballast powder is heated to certain temperature, and calcium hydroxide and calcium carbonate in powder or both mixture are decomposed reaction, generates
Calcium oxide, the water or carbon dioxide decomposited are discharged with carrier gas by gas outlet, and the solid powder after decomposition is from decomposer bottom
Portion is discharged, and obtains calcium lime powder (calcium oxide content >=92wt%).
One embodiment according to the present utility model, heating component is disposed in decomposer, and heating component can be choosing
From at least one of radiant tube, heating rod and fuel nozzle.It can avoid as a result, and carbide slag powder be in direct contact, to keep away
Exempt from product pollution calcium lime powder after burning.Specifically, arrangement burning burner in decomposer, and the number for the burner that burns is even
Number, multiple burning burner are arranged symmetrically in the middle and lower part in decomposer.
Further embodiment according to the present utility model, decomposer can be vertical heater or rotary kiln.Be conducive to as a result,
Improve the decomposition efficiency of carbide slag powder.
The temperature of another embodiment according to the present utility model, resolution process can be 600~1100 degrees Celsius.Invention
People has found that, if the temperature of resolution process is too low, the calcium hydroxide in carbide slag powder can not decompose generation calcium oxide；And if dividing
The temperature for solving processing is excessively high, then energy consumption increases waste energy, increases processing cost.
According to the system of the processing carbide slag of the utility model embodiment by separator by physical property and hydroxide
Impurity removal in the discrepant carbide slag of calcium can be aoxidized then after further dehydration, drying broken and resolution process
The high calcium lime powder of calcium content.The purification to carbide slag can be realized using Physical Separation Technology as a result, while being obtained after decomposition
To the higher calcium lime powder of calcium oxide content, which can use directly as calcium carbide raw materials for production, to not only solve
Carbide slag stacks the problem of occupying a large amount of soils for a long time, and realizes the recycling of carbide slag, is incited somebody to action with traditional technology
Carbide slag is compared for producing the building materials such as cement, the scheme of the application economical and environmentally friendly remarkable benefit.
As described above, the system of above-mentioned processing carbide slag at least has the advantages that one of what follows：
According to the system of the processing carbide slag of the utility model embodiment, carbide slag is turned waste into wealth, the life stone produced
Ashes can do downstream raw material, or be used directly as calcium carbide raw materials for production；
According to the system of the processing carbide slag of the utility model embodiment, a completely new path is provided for carbide slag,
It may be implemented in calcium based raw material in calcium carbide production to recycle, protect limestone resource, avoid, because developing limestone resource, causing
Environment and massif destroy, conservation of nature environment；
According to the system of the processing carbide slag of the utility model embodiment, is conducive to alleviate enterprise, social enviroment protection pressure, keep away
Exempt from environmental pollution of the carbide slag to generations such as soil, air；
According to the system of the processing carbide slag of the utility model embodiment, using hydrocyclone or centrifuge as separation
Device can carry out carbide slag purification in front end, reduce it is follow-up dry, decompose, the load of collecting process, reduce enterprise investment and
Operating cost reduces carbide slag cost for purification.
In order to facilitate understanding, below to the method for the system processing carbide slag using the above-mentioned processing carbide slag of the utility model
It is described in detail, embodiment according to the present utility model, with reference to figure 2, this method includes：
S100：Carbide slag slurry is supplied into separator and carries out separating treatment
In the step, carbide slag slurry is supplied into separator and carries out separating treatment, to obtain impurity and purification
Rear slurry.Specifically, first adjusting carbide slag slurry concentration (without adjustment if upstream is wet method acetylene unit), obtains satisfaction and wants
The carbide slag slurry asked, the wherein mass concentration of carbide slag slurry are not less than 55wt%, are then fed into separator, according to miscellaneous
The difference of matter silica, ferrosilicon etc. and calcium hydroxide physical property carries out impurity removal, the purification rear slurry obtained after separation
It is sent into subsequent cell.
The moisture content of one embodiment according to the present utility model, carbide slag slurry can be 50-80wt%.Invention human hair
Existing, if the moisture content of carbide slag slurry is too low, carbide slag slurry is more sticky, is unfavorable for the sorting removing of impurity；And if electric
The moisture content of rock ballast slurries is excessively high, then waste water resource, while smaller to the treating capacity of carbide slag.
S200：Purification rear slurry is supplied and is carried out dehydrating into dehydration device
In the step, purification rear slurry is supplied and is carried out dehydrating into dehydration device, after obtaining water and dehydration
Carbide slag.Specifically, the purification rear slurry from separator is removed most of moisture, obtained dehydration by dehydration device
Carbide slag is sent into subsequent cell afterwards.
One embodiment according to the present utility model, the moisture content of carbide slag can be not more than 45wt% after dehydration.Invention
People has found, if the moisture content of carbide slag is excessively high after dehydration, will increase the energy consumption of follow-up drying fragmentation cell, reduces entire technique
Economy.
S300：By carbide slag after dehydration supply to drying breaker in, carried out under the action of high-temperature gas drying and
It is broken
In the step, carbide slag after dehydration is supplied into drying breaker, is dried under the action of high-temperature gas
It is dry and broken, to obtain carbide slag powder.Specifically, use after high-temperature gas thermal dehydration carbide slag to 100 degrees Celsius with
On, the moisture in carbide slag after dehydration is dried, while being crushed, carbide slag powder is obtained.
One embodiment according to the present utility model, high-temperature gas can be the high temperature cigarette that temperature is not less than 600 degrees Celsius
Gas or inert gas.The drying to carbide slag after dehydration can be realized as a result, and high-temperature flue gas or inert gas can be made full use of
Sensible heat.
S400：Carbide slag powder is supplied into decomposer and carries out resolution process
In the step, carbide slag powder is supplied into decomposer and carries out resolution process, so as to obtain calcium lime powder and
Gas after decomposition.Specifically, carbide slag powder using high-temperature gas as carrier gas, is sent to decomposer, decomposer is interior using indirect
Carbide slag powder is heated to certain temperature by mode of heating, and calcium hydroxide and calcium carbonate in powder or both mixture occur
Decomposition reaction generates calcium oxide, and the water or carbon dioxide decomposited is discharged with carrier gas by gas outlet, the solid powder after decomposition
It is discharged from decomposer bottom, obtains calcium lime powder (calcium oxide content >=92wt%).
The temperature of one embodiment according to the present utility model, resolution process can be 600~1100 degrees Celsius.Inventor
It was found that if the temperature of resolution process is too low, the calcium hydroxide in carbide slag powder can not decompose generation calcium oxide；And if decomposing
The temperature of processing is excessively high, then energy consumption increases waste energy, increases processing cost.
According to the method for handling carbide slag using the system of processing carbide slag of the utility model embodiment, because of carbide slag
Main component is calcium hydroxide, can be gone physical property and the impurity in the discrepant carbide slag of calcium hydroxide by separator
It removes, after being further dehydrated, drying broken and resolution process, the high calcium lime powder of calcium oxide content can be obtained.Object is used as a result,
The purification to carbide slag can be realized in reason method, while the higher calcium lime powder of calcium oxide content is obtained after decomposition, it is economical and
Environmental benefit is notable.
It should be noted that feature and advantage described in the above-mentioned system for processing carbide slag are equally applicable to this and adopt
The method for handling carbide slag with the system of processing carbide slag, details are not described herein again.
Below with reference to specific embodiment, the utility model is described, it should be noted that these embodiments are only
Descriptive, without limiting the utility model in any way.
Embodiment
Using Inner Mongol somewhere calcium carbide enterprise carbide slag, ingredient is as shown in table 1.
Constituent analysis after the roasting of 1 carbide slag of table
Carbide slag slurry (aqueous 73wt%) from wet method acetylene unit is directly pumped into water by hydraulic pressure Concentrated material pump
In power cyclone, the impurity in carbide slag slurry is detached with calcium hydroxide by centrifuging, impurity is by hydrocyclone bottom
Portion's impurities outlet discharge, purification rear slurry (aqueous 71wt%) are sent by top exit in plate type pressure filter, and physical impact is passed through
Filtering, carbide slag (aqueous 37wt%), purifying water process after being dehydrated.Carbide slag is sent into drying crusher charging after dehydration
Mouthful, carbide slag is broken up in drying crusher, about 650 degrees Celsius of the hot-gas temperature from hot-blast stove, it is broken in drying
Carbide slag is dried after being dehydrated in machine, and is carried the carbide slag powder after drying and be sent into thermal decomposition furnace by powder outlet,
Thermal decomposition furnace middle and lower part fuel nozzle uses fuel gas combustion heat supplying, and the carbide slag powder in stove is heated to 1000 degrees Celsius of left sides
The right side, calcium carbonate and calcium hydroxide in powder occur pyrolysis, obtain calcium oxide, and the carbon dioxide and water for decomposing generation steam
As tail gas is by the offgas outlet discharge at top, the dry powder after decomposition exports discharge by bottom dry powder and obtains rich in calcium oxide gas
Calcium lime powder, after testing, calcium oxide content is up to 92.07wt% in calcium lime powder.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combines and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (5)
1. a kind of system of processing carbide slag, which is characterized in that including：
Separator, the separator have carbide slag slurry entrance, impurities outlet and the outlet of purification rear slurry；
Dehydration device, the dehydration device are exported with carbide slag after purification rear slurry entrance, water out and dehydration, the purification
Rear slurry entrance is connected with purification rear slurry outlet；
Breaker is dried, the drying breaker has carbide slag entrance, high-temperature gas entrance and calcium carbide ground-slag after dehydration
Material outlet, carbide slag entrance is connected with carbide slag outlet after the dehydration after the dehydration；
Decomposer, gas vent after the decomposer has carbide slag powder entrance, calcium lime powder outlet and decomposes are described
Carbide slag powder entrance is connected with the carbide slag powder outlet.
2. system according to claim 1, which is characterized in that the separator is hydrocyclone or centrifuge.
3. system according to claim 1, which is characterized in that the dehydration device is filter press.
4. system according to claim 1, which is characterized in that heating component is disposed in the decomposer, it is described to add
Hot component is selected from least one of radiant tube, heating rod and fuel nozzle.
5. system according to claim 4, which is characterized in that the decomposer is vertical heater or rotary kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442745.9U CN207619278U (en) | 2017-11-01 | 2017-11-01 | The system for handling carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721442745.9U CN207619278U (en) | 2017-11-01 | 2017-11-01 | The system for handling carbide slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619278U true CN207619278U (en) | 2018-07-17 |
Family
ID=62827450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721442745.9U Expired - Fee Related CN207619278U (en) | 2017-11-01 | 2017-11-01 | The system for handling carbide slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207619278U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720797A (en) * | 2017-11-01 | 2018-02-23 | 神雾环保技术股份有限公司 | The system and method for handling carbide slag |
| CN111717929A (en) * | 2020-07-10 | 2020-09-29 | 沈阳鑫博工业技术股份有限公司 | Carbide slag comprehensive utilization device and method |
| CN113510002A (en) * | 2021-09-13 | 2021-10-19 | 中国科学院过程工程研究所 | Method and system device for removing impurities in carbide slag through micro-nano bubble coupling hydrocyclone separation |
-
2017
- 2017-11-01 CN CN201721442745.9U patent/CN207619278U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720797A (en) * | 2017-11-01 | 2018-02-23 | 神雾环保技术股份有限公司 | The system and method for handling carbide slag |
| CN111717929A (en) * | 2020-07-10 | 2020-09-29 | 沈阳鑫博工业技术股份有限公司 | Carbide slag comprehensive utilization device and method |
| CN113510002A (en) * | 2021-09-13 | 2021-10-19 | 中国科学院过程工程研究所 | Method and system device for removing impurities in carbide slag through micro-nano bubble coupling hydrocyclone separation |
| CN113510002B (en) * | 2021-09-13 | 2021-12-17 | 中国科学院过程工程研究所 | Method and system device for removing impurities in carbide slag through micro-nano bubble coupling hydrocyclone separation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107324670B (en) | Device for producing high-activity magnesium oxide by utilizing magnesite tailings | |
| CN101817525B (en) | Process and device for producing calcium carbide by using powder raw materials through two-stage method | |
| CN103708455B (en) | The method preparing carbide | |
| CN105858660B (en) | The system and method for preparing calcium carbide | |
| CN207619278U (en) | The system for handling carbide slag | |
| CN103058536B (en) | Heat-accumulation dividing-wall heating rotary kiln device | |
| CN107720797A (en) | The system and method for handling carbide slag | |
| CN109179469A (en) | A kind of device and method using carbide slag production active calcium oxide | |
| CN103708456A (en) | Method for preparing calcium carbide | |
| CN103708743B (en) | The method preparing carbide raw materials for metallurgy | |
| CN109136539B (en) | Integrated process of fluidized bed two-stage gasification and flash light burning magnesite | |
| CN104016596A (en) | Rotary kiln with power generation device | |
| CN104628237A (en) | Sludge drying incineration system based on thermal power plant | |
| CN104058608B (en) | A kind of shaft furnace of partition heated material | |
| CN108083279A (en) | The system and method for handling carbide slag | |
| CN109928595B (en) | Sludge deep drying method and system based on low-temperature heat source | |
| CN203947031U (en) | A kind of rotary kiln with power generation assembly | |
| CN107541223A (en) | A kind of system and method for integrated treatment rubbish and carbide slag | |
| CN105347702B (en) | A kind of rotary kiln device for producing cement | |
| CN1986472A (en) | Process of producing cement with papermaking white clay as material | |
| CN212610308U (en) | Cement clinker firing production line capable of improving waste gas waste heat utilization rate | |
| CN204529636U (en) | A kind of sludge drying and incineration system relying on heat power plant | |
| CN103708459A (en) | Method for preparing calcium carbide | |
| CN114988731B (en) | Energy-saving and consumption-reducing cement production process | |
| CN203034041U (en) | System of powdered coal gasification gas making and gas-based shaft furnace direct reduction metallurgy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20181101 |