CN109517987A - Silicon carbide produces technique for applying of the waste material in ferrosilicon, silicomangan production - Google Patents
Silicon carbide produces technique for applying of the waste material in ferrosilicon, silicomangan production Download PDFInfo
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- CN109517987A CN109517987A CN201910038678.1A CN201910038678A CN109517987A CN 109517987 A CN109517987 A CN 109517987A CN 201910038678 A CN201910038678 A CN 201910038678A CN 109517987 A CN109517987 A CN 109517987A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B47/00—Obtaining manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses technique for applying of the silicon carbide production waste material in ferrosilicon, silicomangan production, comprise the following steps that A, garbage collection: collecting impurity waste material outside silicon carbide crystallization cylinder；B, waste material is processed: being carried out cyclic process and grinding to waste material by waste treatment device, and is collected to grinding waste material, removes related impurities, gained waste material is stored for future use；C, ferrosilicon and silicomangan raw material: manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reducing agent and silicon carbide production waste material are mixed in proportion；Silicon carbide smelting raw material, quartz sand and anthracite belong to the low quality raw materials of purity is high, impurity content, silicon carbide production waste belongs to semi-finished product material, power consumption can be reduced, it can change the structure of microelement in alloy, the waste material of silicon carbide factory can be comprehensively utilized, bigger value is created, realize that energy recovery utilizes, increase the recovery utilization rate of resource, it is environmentally protective.
Description
Technical field:
The invention belongs to ferrosilicon, silicomangan production technical field, in particular to silicon carbide produces waste material in ferrosilicon, silicomanganese
Technique for applying in alloy production.
Background technique:
In silicon carbide smelting production process, silicon carbide, which crystallizes, forms 100mm-200mm magazine waste material, silicon carbide of standing outside cylinder
15% or so of production, this part waste material are not just available in silicon carbide factory, regard waste disposal, can not be to silicon carbide factory
Waste material can comprehensively utilize, unit finished product power consumption can not be reduced, micronutrient levels in alloy is unable to improve, cannot achieve energy
Source recycles, and can not increase the recovery utilization rate of resource, cannot achieve environmentally protective.
Summary of the invention:
The object of the invention is that providing silicon carbide production waste material in ferrosilicon, silicomangan to solve the above-mentioned problems
Technique for applying in production solves disadvantage present in existing equipment.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions:
Silicon carbide produces technique for applying of the waste material in ferrosilicon, silicomangan production, comprises the following steps that
A, garbage collection: impurity waste material is collected outside silicon carbide crystallization cylinder；
B, waste material is processed: cyclic process and grinding are carried out to waste material by waste treatment device, and to grinding waste material into
Row is collected, and removes related impurities, gained waste material is stored for future use；
C, ferrosilicon and silicomangan raw material: by manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone,
Reducing agent and silicon carbide production waste material mix in proportion；
D, ferrosilicon and silicomangan processing: it will obtain reacting in mixed raw material investment mineral hot furnace in step C, and adopt
It is smelted with slagprocess.
Preferably, manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reduction in the step C
The compound percentages 43%:14%:11%:4%:7%:16%:4% of agent and silicon carbide production waste material.
Preferably, reducing agent is coke in the step C.
Preferably, main component sic≤20%, sio2 content > 40%, C > 15%, Fe≤5% in the step A,
Simultaneously also containing microelements such as Ca, AL.
Preferably, the waste treatment device is made of cutting agency, sieving machine structure and recovering mechanism, the blanking machine
Structure is by material storing case, raw material adding mouth, motor fixing seat, blanking motor, stirring main shaft, the first belt pulley, paddle, blanking
Pipe, blanking screw rod, shaft coupling and auxiliary support bar form, and are fixedly connected with motor fixing seat at the top of the material storing case,
The side of the motor fixing seat is fixedly connected with blanking motor, is rotatably connected to stirring at the top of the material storing chamber interior wall
Main shaft, the top of the stirring main shaft is fixedly connected from the top of material storing case and with the output end of blanking motor, under described
Expect to be fixed with the first belt pulley on the outside of the output end of motor, the outside of the stirring main shaft is equidistantly fixedly connected with several and stirs
Leaf is mixed, the bottom of the stirring main shaft is sequentially connected with blanking screw rod by shaft coupling, and the bottom of the material storing case is fixed
It is connected with feeder pipe, the blanking screw rod is inserted into inside feeder pipe, and the blanking screw rod is slidably connected with blanking inside pipe wall.
Preferably, the sieving machine structure is by crush box, the first milling roller, the second milling roller, filter screen, conveying spiral shell
Bar, filtering hairbrush, conveying motor, conveying screw rod, the second belt pulley, driving belt, first roll motor and second and roll motor
Composition, the bottom of the feeder pipe are fixedly connected with crush box, the inner rotation of the crush box be connected with the first milling roller with
The side of second milling roller, the outside of the crush box and close first milling roller is fixedly connected with first and rolls motor, described
First output end for rolling motor is fixedly connected with the first milling roller, the outside of the crush box and close to the second milling roller one
Side is fixedly connected with second and rolls motor, and the described second output end for rolling motor is fixedly connected with the second milling roller, the powder
The filter screen of arcuate structure is fixedly installed with inside broken case, the crushing chamber interior wall is rotatably connected to feeding spiro rod, described defeated
The outside of material screw rod is equidistantly fixedly connected with several filtering hairbrush, and the filtering hairbrush is slidably connected with filter screen, described
The side of crush box is fixedly connected with conveying motor, and the output end of the conveying motor is fixedly connected with feeding spiro rod, the powder
Broken case is fixedly connected with recycling expects pipe far from the side of conveying motor, and the inner rotation of the recycling expects pipe is connected with conveying spiral shell
The top of bar, the conveying screw rod through recycling expects pipe and is fixedly connected with, and the second belt pulley of the recycling expects pipe, described
Second belt pulley and the first belt pulley are sequentially connected by driving belt.
Preferably, the recovering mechanism is made of collecting box, collection cylinder and collection push plate, the bottom of the crush box
It is fixedly connected with collecting box, the internal slide of the collecting box is connected with collection push plate, and the collecting box is far from conveying motor
One end is fixedly connected with collection cylinder, and the output end for collecting cylinder is fixedly connected with push plate is collected.
Preferably, the side of the material storing box top is equipped with raw material adding mouth.
Preferably, the bottom of the material storing case passes through auxiliary support bar and crush box.
Preferably, the top of the recycling expects pipe is connect with material storing case, the bottom of the recycling expects pipe and filtering
Connection above sieve.
Beneficial effects of the present invention: it is low that silicon carbide smelting raw material, quartz sand and anthracite belong to purity is high, impurity content
Quality raw materials, silicon carbide production waste belong to semi-finished product material, power consumption can be reduced, thus it is possible to vary microelement in alloy
Structure, the waste material of silicon carbide factory can be comprehensively utilized, can reduce unit finished product power consumption, improve microelement in alloy and contain
The advantages that amount, realizes that energy recovery utilizes, increases the recovery utilization rate of resource, environmentally protective.
Detailed description of the invention:
Detailed description will be given by the following detailed implementation and drawings by the present invention for ease of explanation,.
Fig. 1 is the structural schematic diagram of waste treatment device of the present invention；
Fig. 2 is the top view of crush box of the present invention；
Fig. 3 is the sectional view of crush box of the present invention.
In figure: 1- cutting agency, 2- sieving machine structure, 3- recovering mechanism, 4- material storing case, 5- raw material adding mouth, 6- electricity
Machine fixing seat, 7- blanking motor, 8- stirring main shaft, the first belt pulley of 9-, 10- paddle, 11- feeder pipe, 12- blanking screw rod,
13- shaft coupling, 14- auxiliary support bar, 15- crush box, the first milling roller of 16-, the second milling roller of 17-, 18- filter screen, 19-
Feeding spiro rod, 20- filtering hairbrush, 21- conveying motor, 22- conveying screw rod, the second belt pulley of 23-, 24- driving belt, 25- the
One, which rolls motor, 26- second, rolls motor, 27- collecting box, 28- collection cylinder, 29- collection push plate, 30- recycling expects pipe.
Specific embodiment:
As shown in Figure 1-3, present embodiment uses following technical scheme: silicon carbide produces waste material in ferrosilicon, silicomanganese
Technique for applying in alloy production, comprises the following steps that
A, garbage collection: impurity waste material is collected outside silicon carbide crystallization cylinder；
B, waste material is processed: cyclic process and grinding are carried out to waste material by waste treatment device, and to grinding waste material into
Row is collected, and removes related impurities, gained waste material is stored for future use；
C, ferrosilicon and silicomangan raw material: by manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone,
Reducing agent and silicon carbide production waste material mix in proportion；
D, ferrosilicon and silicomangan processing: it will obtain reacting in mixed raw material investment mineral hot furnace in step C, and adopt
It is smelted with slagprocess.
Wherein, manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone in the step C, reducing agent and
The compound percentages 43%:14%:11%:4%:7%:16%:4% of silicon carbide production waste material.
Wherein, reducing agent is coke in the step C.
Wherein, main component sic≤20%, sio2 content > 40%, C > 15%, Fe≤5% in the step A, simultaneously
Also containing microelements such as Ca, AL.
Wherein, the waste treatment device is made of cutting agency 1, sieving machine structure 2 and recovering mechanism 3, the blanking machine
Structure 1 is by material storing case 4, raw material adding mouth 5, motor fixing seat 6, blanking motor 7, stirring main shaft 8, the first belt pulley 9, stirring
Leaf 10, feeder pipe 11, blanking screw rod 12, shaft coupling 13 and auxiliary support bar 14 form, and the top of the material storing case 4 is fixed
It is connected with motor fixing seat 6, the side of the motor fixing seat 6 is fixedly connected with blanking motor 7, in the material storing case 4
Be rotatably connected to stirring main shaft 8 at the top of wall, the top of the stirring main shaft 8 from the top of material storing case 4 and with blanking electricity
The output end of machine 7 is fixedly connected, and is fixed with the first belt pulley 9, the stirring main shaft on the outside of the output end of the blanking motor 7
8 outside is equidistantly fixedly connected with several paddles 10, and the bottom of the stirring main shaft 8 is sequentially connected with by shaft coupling 13
Blanking screw rod 12, the bottom of the material storing case 4 are fixedly connected with feeder pipe 11, and the blanking screw rod 12 is inserted into feeder pipe 11
Inside, and the blanking screw rod 12 is slidably connected with 11 inner wall of feeder pipe.
Wherein, the sieving machine structure 2 is by crush box 15, the first milling roller 16, the second milling roller 17, filter screen 18, defeated
Material screw rod 19, filtering hairbrush 20, conveying motor 21, conveying screw rod 22, the second belt pulley 23, driving belt 24, first roll electricity
Machine 25 and second rolls the composition of motor 26, and the bottom of the feeder pipe 11 is fixedly connected with crush box 15, the crush box 15
Inner rotation is connected with the first milling roller 16 and the second milling roller 17, the outside of the crush box 15 and close first milling roller 16
Side be fixedly connected with first and roll motor 25, described first rolls the output end of motor 25 and the first milling roller 16 is fixed connects
It connects, the outside of the crush box 15 and is fixedly connected with second close to the side of the second milling roller 17 and rolls motor 26, described the
Two output ends for rolling motor 26 are fixedly connected with the second milling roller 17, are fixedly installed with arcuate structure inside the crush box 15
Filter screen 18,15 inner wall of crush box is rotatably connected to feeding spiro rod 19, and the outside of the feeding spiro rod 19 is equidistantly solid
Surely several filtering hairbrush 20 are connected with, the filtering hairbrush 20 is slidably connected with filter screen 18, and the one of the crush box 15
Side is fixedly connected with conveying motor 21, and the output end of the conveying motor 21 is fixedly connected with feeding spiro rod 19, the crush box
15 sides far from conveying motor 21 are fixedly connected with recycling expects pipe 30, and the inner rotation of the recycling expects pipe 30 is connected with conveying
The top of screw rod 22, the conveying screw rod 22 through recycling expects pipe 30 and is fixedly connected with, and the second of the recycling expects pipe 30
Belt pulley 23, second belt pulley 23 are sequentially connected with the first belt pulley 9 by driving belt 24.
Wherein, the recovering mechanism 3 is made of collecting box 27, collection cylinder 28 and collection push plate 29, the crush box 15
Bottom be fixedly connected with collecting box 27, the internal slide of the collecting box 27, which is connected with, collects push plate 29, the collecting box 27
One end far from conveying motor 21, which is fixedly connected with, collects cylinder 28, and the output end for collecting cylinder 28 and collection push plate 29 are solid
Fixed connection.
Wherein, the side at 4 top of material storing case is equipped with raw material adding mouth 5, convenient for adding materials.
Wherein, the bottom of the material storing case 4 increases material storing case 4 by auxiliary support bar 14 and crush box 15
Stability.
Wherein, the top of the recycling expects pipe 30 is connect with material storing case 4, the bottom of the recycling expects pipe 30 and filtering
It is connected to above sieve 18, is convenient for material recycle.
Specific: silicon carbide produces technique for applying of the waste material in ferrosilicon, silicomangan production, in use, in silicon carbide
It crystallizes and collects impurity waste material outside cylinder, and waste material is put into waste treatment device, material storage is added from raw material adding mouth 5 in waste material
It deposits in case 4, blanking screw rod is driven by shaft coupling 13 while blanking motor 7 drives paddle 10 to stir by stirring main shaft 8
12 rotations, because blanking screw rod 12 and 11 inner wall of feeder pipe are slidably connected, therefore material flows into crush box 15 out of feeder pipe 11,
At the same time, it first rolls motor 25 and second and rolls motor 26 and drive the first milling roller 16 and the second milling roller 17 to stirring respectively
The direction rotation for mixing leaf 10, carries out extruding crushing, smashed object to waste material by the first milling roller 16 and the second milling roller 17
Material is fallen into filter screen 18, drives filtering hairbrush 20 to rotate while conveying motor 21 drives feeding spiro rod 19 to rotate, filtering
Smashed material is sent in collecting box 27 by hairbrush 20 by filter opening, and under feeding spiro rod 19 or so that larger particles are defeated
It is sent in recycling expects pipe 30, blanking motor 7 drives the first belt pulley 9 to rotate while driving paddle 10, the first belt pulley 9 is logical
It crosses driving belt 24 and drives the rotation of the second belt pulley 23, the second belt pulley 23 drives conveying screw rod 22 to rotate, and conveying screw rod 22 will
The bulky grain of recycling 30 bottom of expects pipe is transported in material storing case 4 from newly, is recycled completion with this and is crushed and screen, by collecting box
27 obtained waste materials are mixed with manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reducing agent, and
Guarantee the mixing of manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reducing agent and silicon carbide production waste material
Then percentage 43%:14%:11%:4%:7%:16%:4% is reacted in mixed raw material investment mineral hot furnace, and is adopted
It is smelted with slagprocess.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, the technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. silicon carbide produces technique for applying of the waste material in ferrosilicon, silicomangan production, it is characterised in that: comprise the following steps that
A, garbage collection: impurity waste material is collected outside silicon carbide crystallization cylinder；
B, waste material is processed: being carried out cyclic process and grinding to waste material by waste treatment device, and is received to grinding waste material
Collection removes related impurities, gained waste material is stored for future use；
C, ferrosilicon and silicomangan raw material: by manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reduction
Agent and silicon carbide production waste material mix in proportion；
D, it ferrosilicon and silicomangan processing: will obtain reacting in mixed raw material investment mineral hot furnace in step C, and use has
Slag method is smelted.
2. technique for applying of the silicon carbide production waste material according to claim 1 in ferrosilicon, silicomangan production, feature
Be: manganese ore, manganese sinter stone, Mn-rich slag, silica, dolomite or lime stone, reducing agent and silicon carbide are raw in the step C
Produce the compound percentages 43%:14%:11%:4%:7%:16%:4% of waste material.
3. technique for applying of the silicon carbide production waste material according to claim 1 in ferrosilicon, silicomangan production, feature
Be: reducing agent is coke in the step C.
4. technique for applying of the silicon carbide production waste material according to claim 1 in ferrosilicon, silicomangan production, feature
It is: main component sic≤20%, sio2 content > 40%, C > 15%, Fe≤5% in the step A, while also containing
The microelements such as Ca, AL.
5. technique for applying of the silicon carbide production waste material according to claim 1 in ferrosilicon, silicomangan production, feature
Be: the waste treatment device is made of cutting agency (1), sieving machine structure (2) and recovering mechanism (3), the cutting agency
(1) by material storing case (4), raw material adding mouth (5), motor fixing seat (6), blanking motor (7), stirring main shaft (8), the first skin
Belt wheel (9), paddle (10), feeder pipe (11), blanking screw rod (12), shaft coupling (13) and auxiliary support bar (14) composition, institute
It states and is fixedly connected at the top of material storing case (4) motor fixing seat (6), the side of the motor fixing seat (6) is fixedly connected
Have blanking motor (7), is rotatably connected to stirring main shaft (8), the stirring main shaft at the top of material storing case (4) inner wall
(8) top is from the top of material storing case (4) and is fixedly connected with the output end of blanking motor (7), the blanking motor (7)
Output end on the outside of be fixed with the first belt pulley (9), the outside of the stirring main shaft (8) is equidistantly fixedly connected with several and stirs
It mixes leaf (10), the bottom of the stirring main shaft (8) is sequentially connected with blanking screw rod (12), the material storage by shaft coupling (13)
The bottom for depositing case (4) is fixedly connected with feeder pipe (11), and the blanking screw rod (12) insertion feeder pipe (11) is internal, and it is described under
Material screw rod (12) is slidably connected with feeder pipe (11) inner wall.
6. technique for applying of the silicon carbide production waste material according to claim 5 in ferrosilicon, silicomangan production, feature
Be: the sieving machine structure (2) by crush box (15), the first milling roller (16), the second milling roller (17), filter screen (18),
Feeding spiro rod (19), filtering hairbrush (20), conveying motor (21), conveying screw rod (22), the second belt pulley (23), driving belt
(24), first roll motor (25) and second roll motor (26) composition, the bottom of the feeder pipe (11) is fixedly connected with powder
The inner rotation of broken case (15), the crush box (15) is connected with the first milling roller (16) and the second milling roller (17), the powder
The side of the outside of broken case (15) and close first milling roller (16) is fixedly connected with first and rolls motor (25), and described first grinds
The output end of Medium-voltage Motor (25) is fixedly connected with the first milling roller (16), the outside of the crush box (15) and is rolled close to second
The side of roller (17) is fixedly connected with second and rolls motor (26), and described second, which rolls the output end of motor (26) and second, rolls
Roller (17) is fixedly connected, and the filter screen (18) of arcuate structure, the crush box are fixedly installed with inside the crush box (15)
(15) inner wall is rotatably connected to feeding spiro rod (19), and the outside of the feeding spiro rod (19) is equidistantly fixedly connected with several filterings
Hairbrush (20), the filtering hairbrush (20) are slidably connected with filter screen (18), and the side of the crush box (15) is fixedly connected
Have conveying motor (21), the output end of the conveying motor (21) is fixedly connected with feeding spiro rod (19), the crush box (15)
Side far from conveying motor (21) is fixedly connected with recycling expects pipe (30), and the inner rotation of recycling expects pipe (30) is connected with
The top of conveying screw rod (22), the conveying screw rod (22) through recycling expects pipe (30) and is fixedly connected with, and the reclaimed materials
Second belt pulley (23) of (30) is managed, second belt pulley (23) and the first belt pulley (9) are driven by driving belt (24)
Connection.
7. technique for applying of the silicon carbide production waste material according to claim 5 in ferrosilicon, silicomangan production, feature
Be: the recovering mechanism (3) is made of collecting box (27), collection cylinder (28) and collection push plate (29), the crush box
(15) bottom is fixedly connected with collecting box (27), and the internal slide of the collecting box (27), which is connected with, collects push plate (29), institute
It states collecting box (27) and is fixedly connected with collection cylinder (28) far from the one end of conveying motor (21), it is described to collect the defeated of cylinder (28)
Outlet is fixedly connected with push plate (29) are collected.
8. technique for applying of the silicon carbide production waste material according to claim 5 in ferrosilicon, silicomangan production, feature
Be: the side at the top of the material storing case (4) is equipped with raw material adding mouth (5).
9. technique for applying of the silicon carbide production waste material according to claim 5 in ferrosilicon, silicomangan production, feature
Be: the bottom of the material storing case (4) passes through auxiliary support bar (14) and crush box (15).
10. technique for applying of the silicon carbide production waste material according to claim 6 in ferrosilicon, silicomangan production, special
Sign is: the top of recycling expects pipe (30) is connect with material storing case (4), the bottom of recycling expects pipe (30) and filtering
Connection above sieve (18).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097353A (en) * | 2019-12-02 | 2020-05-05 | 浙江荣凯科技发展有限公司 | Reation kettle is used in production of phenolic resin that fast accuse temperature just has dust collection structure |
| CN114645134A (en) * | 2022-03-17 | 2022-06-21 | 内蒙古新创环境科技有限公司 | Resource utilization device for arsenic-containing waste |
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