CN111234852A - Feeding device and feeding method of continuous waste tire cracking furnace - Google Patents
Feeding device and feeding method of continuous waste tire cracking furnace Download PDFInfo
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- CN111234852A CN111234852A CN202010041203.0A CN202010041203A CN111234852A CN 111234852 A CN111234852 A CN 111234852A CN 202010041203 A CN202010041203 A CN 202010041203A CN 111234852 A CN111234852 A CN 111234852A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/32—Adaptations of bearings or couplings for supporting and connecting screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/34—Applications of driving gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a feeding device and a feeding method of a continuous waste tire cracking furnace, and belongs to the technical field of waste tire solid waste resource recycling. The feeding device comprises a storage bin, a discharging barrel, a spiral feeding device, a reciprocating feeding device, a spiral feeder blowing device and a reciprocating feeder push rod sealing device; the reciprocating feeder includes a reciprocally movable traveling body, a rail support part fixed to a base, a moving rail equipped on the rail support part, a rolling bearing reciprocally movably holding the traveling body with respect to the traveling rail by a traveling line, and a traveling body driving member. The invention can solve the problem of blockage of the spiral feeding device of the traditional scrap tire cracking furnace, prevent the escape of high-temperature cracking gas, can feed continuously in a reciprocating way, and greatly improves the efficiency of the cracking furnace.
Description
Technical Field
The invention relates to a feeding device and a feeding method of a continuous waste tire cracking furnace, and belongs to the technical field of waste tire solid waste resource recycling.
Background
Scrap tires, also known as junked tires, present a traffic safety hazard due to their state of wear. With the rapid development of the transportation industry, a large amount of waste tires are generated every year, the waste tires are not desirable to be directly buried as an original treatment method for the waste tires, the waste tires are a high-molecular synthetic material, the chemical structure of the waste tires is stable, the waste tires cannot be biologically degraded, not only is resources wasted in the burying treatment, but also the chemical substance migration in the waste tires causes pollution to soil and water. Therefore, the solid waste recycling of the waste tires has important environmental protection and economic benefits.
At present, the more effective resource recycling mode of the waste tires is waste tire cracking, namely, the waste tires are heated under inert atmosphere or anoxic condition to carry out thermal cracking reaction to generate three products of gas, liquid and solid. The cracking technology has the advantages of low energy consumption, high potential utilization value of products and the like. The cracking furnaces commonly used are generally either batch-fed or continuous-fed devices using screw feed. These devices have a number of deficiencies. The intermittent feeding mode can generally overcome the problem of tightness, but needs to start and stop the cracking furnace for feeding and discharging materials, so that the starting and stopping time is long, and the energy consumption is high; the continuous feeding mode can solve the problem of continuous feeding and discharging, but the device generally has the problem of poor sealing performance, so that high-temperature pyrolysis gas of the waste tire easily escapes from the furnace, and the environment is polluted. Meanwhile, the main component rubber of the waste tire can be softened and bonded when heated in the cracking process, and then the spiral feeder is blocked.
In order to solve the problem of difficult continuous feeding of the scrap tire cracking furnace, it is necessary to develop a feeding device and a feeding method of the continuous scrap tire cracking furnace with a sealing function.
Disclosure of Invention
The technical problem is as follows: in order to overcome the problems in the prior art, the invention provides a feeding device and a feeding method of a continuous waste tire cracking furnace, which aim to solve the problems that a spiral feeder is blocked due to high-temperature softening, high-temperature cracking gas escapes due to poor sealing property and the like when the existing waste tire cracking furnace continuously feeds materials, and realize the continuous and stable operation of the waste tire cracking furnace.
The technical scheme is as follows: the invention discloses a feeding device of a continuous waste tire cracking furnace, which comprises a storage bin, a discharge barrel, a spiral feeding motor, a spiral feeder, a blowing device of the spiral feeder, a reciprocating traveling body, a rail supporting component fixed on a base, a traveling rail arranged on the rail supporting component, a spiral bearing and a traveling body driving component which can keep the traveling body to move relative to the traveling rail in a reciprocating way through a traveling line, and a reciprocating feeder push rod sealing device, wherein the spiral feeding motor is arranged on the spiral feeder;
the discharge port of the storage bin is connected with the discharge barrel, the outlet of the discharge barrel is positioned at the inlet of the spiral feeder, the spiral feeder is coaxially connected with the spiral feeding motor, the spiral feeder is driven by the spiral feeding motor, the outlet of the spiral feeder is connected with the spiral feeder blowing device, and the air inlet of the spiral feeder blowing device is connected with an external inert gas source (N)2) Connecting to ensure inert gas atmosphere in the screw feeder and the reciprocating feeding device;
the inlet of the reciprocating feeder is connected with the outlet of the blowing device of the screw feeder, the inlet of the reciprocating feeder is provided with a reciprocating feeder push rod sealing device, the top end of the reciprocating feeder push rod is connected with a reciprocating moving body, the reciprocating feeder comprises a reciprocating body, a reciprocating feeder push rod, a reciprocating feeder, a base, a spiral bearing, a reciprocating feeder driving component, a reciprocating feeder and a sealing device, wherein the reciprocating body is directly connected with the spiral bearing which can keep the reciprocating body to move relative to a traveling track through a traveling line, the traveling body is placed on clamping grooves formed by an upper parallel traveling track and a lower parallel traveling track, the traveling track is fixed on a track supporting component on the base, the tail end of the traveling track is connected with the traveling body driving component, the spiral bearing which keeps the traveling body to move relative to the traveling track is placed in the middle of the clamping grooves formed by the upper parallel traveling track and the lower parallel traveling track, the;
the reciprocating feeder push rod sealing device consists of a moving part reciprocating feeder push rod, a static part stuffing box and stuffing.
The continuous feeding device comprises a two-stage feeding mechanism consisting of a spiral feeder and a reciprocating feeder, and the bin is indirectly communicated with the waste tire cracking furnace through the two-stage feeding mechanism, so that the situation that the spiral feeder is blocked due to softening and adhesion of waste tire materials caused by high temperature of the waste tire cracking furnace is prevented; in order to ensure that the gas in the cracking furnace does not reversely flow into the screw feeder and the bin, a screw feeder blowing device is connected at the tail end of the screw feeder, and nitrogen is introduced to serve as protective gas of the bin and the screw feeder.
The inlet of the reciprocating feeder is simultaneously connected with a reciprocating feeder push rod and a sealing device, and the sealing device consists of a moving part reciprocating feeder push rod, a static part stuffing box and stuffing.
The feeding method of the feeding device of the continuous scrap tire cracking furnace adopts the following steps:
(a) the bin is filled with materials, and the material amount in the bin is mastered at any time through the visual window;
(b) opening a gas flow valve of a blowing device of the spiral feeder, controlling the gas flow at a certain flow rate to blow the whole feeding device, and discharging air;
(c) starting a first-stage spiral feeding motor to drive a spiral feeder, so that the material is spirally conveyed forwards through a discharging barrel and falls into a second-stage reciprocating feeder through a blowing device;
(d) starting a driving member of a traveling body of the second-stage reciprocating feeder to drive a push rod of the feeder and link the traveling body to keep the traveling body to perform reciprocating motion between clamping grooves formed by an upper parallel traveling track and a lower parallel traveling track through the transmission action of a spiral bearing, and directly pushing waste tire particles into a pyrolysis furnace;
(e) the above steps are repeated.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that: this kind of continuous type scrap tire pyrolysis furnace feed arrangement with sealed function, through conventional screw feeder control feed speed, the past compound feeder of rethread is directly sent into pyrolysis furnace with the material of the easy soft adhesion of being heated such as scrap tire, prevents that it from taking place the adhesion and blockking up the feeder, sweeps inert gas in to feed arrangement through gas blowing device, not only can sweep the anterior segment air, guarantees the interior anaerobic atmosphere of pyrolysis furnace, can also prevent that pyrolysis gas from overflowing when the feeding is not enough.
Drawings
FIG. 1 is a schematic structural view of a feeding device of a continuous scrap tire cracking furnace according to the present invention;
FIG. 2 is a schematic view showing a sealing device of a feeding device of a continuous scrap tire cracking furnace according to the present invention.
In the figure: the device comprises a storage bin 1, a discharge barrel 2, a spiral feeding motor 3, a spiral feeder 4, a blowing device 5, a reciprocating feeder 6, a reciprocating movable traveling body 7, a track supporting part 8, a traveling track 9, a spiral bearing 10, a traveling body driving component 11, a sealing device 12, a reciprocating feeder push rod 13, a static part stuffing box 14 and a graphite packing 15.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is more clearly and completely illustrated by the following embodiments and the attached drawings.
Referring to fig. 1-2, a feeding apparatus of a continuous type scrap tire cracking furnace includes a bin 1, a screw feeder 4, and a reciprocating feeder 6, the screw feeder 4 is positioned at a lower portion of the bin 1 and coaxially connected to a screw feeder motor 3, the reciprocating feeder 6 is positioned below the screw feeder 4, the reciprocating feeder includes a reciprocating traveling body 7, a rail supporting member 8 fixed on a base, a traveling rail 9 provided on the rail supporting member, a rolling bearing 10 for reciprocally moving the traveling body with respect to the traveling rail through a traveling line, and a traveling body driving member 11, the reciprocating traveling body 7 is directly connected to a top end of a reciprocating feeder push rod 13 and placed on a slot formed by upper and lower two parallel traveling rails 9, a sealing device 12 is provided between the reciprocating feeder push rod 13 and the cracking furnace, two parallel running rails 9 are fixed on a rail support part on the base, and the tail ends thereof are connected with a running body driving member 11, and the running body driving member 11 is in driving connection with a spiral bearing 10.
Wherein, the stock bin 1 is provided with a visual window, which is convenient for mastering the residual condition of the materials in the stock bin and supplementing the materials in time.
The first-stage screw feeder 4 is coaxially connected with the screw feeding motor 3, the advancing body 7 of the second-stage reciprocating feeder 6 is connected with the driving member 11 and the screw bearing 10 and is respectively connected with an external power supply through a motor switch, so that the screw feeding motor 3 and the reciprocating feeder advancing body driving member 11 are respectively controlled conveniently, and the screw feeding motor 4 and the reciprocating feeder advancing body 7 are respectively driven.
Wherein, one end of the blowing device 5 of the screw feeder is connected with an external air source, and the other end is directly connected with the reciprocating feeder 6, thereby being convenient for externally connecting inert gas, ensuring the oxygen-free atmosphere in the feeder and preventing the escape of high-temperature gas in the cracking furnace.
The packing of the sealing device adopts a graphite packing 15 with proper mechanical strength and hardness, good corrosion resistance and good wear resistance, so that the dynamic sealing effect between the moving part feeder push rod 13 and the static part packing box 14 is ensured, and meanwhile, the sealing effect is prevented from being damaged by corrosive gas generated in the cracking process of the waste tire.
Wherein, grease is used for lubricating the feeder push rod 13 and the graphite packing 15, thereby reducing the abrasion generated during the circular reciprocating feeding.
A feeding method of a feeding device of a continuous scrap tire cracking furnace is characterized by comprising the following steps:
(a) the bin 1 is filled with materials, and the material amount in the bin is mastered at any time through the visual window;
(b) opening a gas flow valve of a blowing device 5 of the spiral feeder 4, controlling the gas flow at a certain flow rate to blow the whole feeding device, and discharging air;
(c) starting a first-stage spiral feeding motor 3 to drive a spiral feeder 4, so that the material is spirally conveyed forwards through a discharging barrel 2 and falls into a second-stage reciprocating feeder 6 through a blowing device 5;
(d) starting a traveling body driving member 11 of the second-stage reciprocating feeder 6 to drive a feeder push rod 13 and link the traveling body 7 to keep the traveling body 7 to perform reciprocating motion between clamping grooves formed by an upper parallel traveling track 9 and a lower parallel traveling track 9 through the transmission action of a spiral bearing 10, and directly pushing waste tire particles into a high-temperature cracking furnace;
(e) the above steps are repeated.
By adopting the technical scheme, the feeding device of the continuous scrap tire cracking furnace has the following advantages:
1. the waste tire material is directly fed into the high-temperature cracking furnace, so that the problem that the spiral feeder is blocked due to softening and adhesion of the rubber material when the rubber material is heated during direct spiral feeding is avoided;
2. the blowing device continuously blows, so that the oxygen-free atmosphere in the feeder can be kept, the reaction quality in the cracking furnace is ensured, and the problem of pollution caused by the escape of high-temperature cracking gas outside the furnace is solved.
3. The operation steps are simple, when feeding, the continuous and stable feeding can be easily realized only through the steps of checking the sealing of the bin, setting the nitrogen flow value before feeding and adjusting the rotating speed of the spiral feeder, then starting the knob to enter the spiral feeder through the discharge hole of the bin, and then entering the reciprocating feeder with stable material output, and the like, thereby greatly improving the efficiency of the cracking furnace.
The foregoing is considered as illustrative only of the principles and features of the invention and advantages thereof. The scope of the present invention is not limited thereto, and any person skilled in the art should be construed as having the technical idea of the present invention and equivalent substitutions or changes therein without departing from the spirit and scope of the present invention.
Claims (4)
1. A feeding device of a continuous waste tire cracking furnace is characterized by comprising a storage bin (1), a discharge barrel (2), a spiral feeding motor (3), a spiral feeder (4), a blowing device (5) of the spiral feeder, a reciprocating feeder (6), a reciprocating traveling body (7), a track supporting part (8) fixed on a base, a traveling track (9) arranged on the track supporting part, a spiral bearing (10) and a traveling body driving component (11) which can keep the traveling body to move relative to the traveling track in a reciprocating mode through a traveling line, and a reciprocating feeder push rod sealing device (12);
the discharge gate of feed bin (1) links to each other with play feed cylinder (2), and the export that goes out feed cylinder (2) is located the entrance of screw feeder (4), and screw feeder (4) and screw feed motor (3) coaxial coupling through screw feed motor (3) drive screw feeder (4), and the export of screw feeder (4) links to each other with screw feeder gas blowing device (5), and the air inlet and outside inert gas source (N) of screw feeder gas blowing device (5) are connected2) The connection is carried out, so that the inert gas atmosphere in the screw feeder (4) and the reciprocating feeding device is ensured;
the inlet of the reciprocating feeder (6) is connected with the outlet of the spiral feeder blowing device (5), the inlet of the reciprocating feeder (6) is provided with a reciprocating feeder push rod sealing device (12), the top end of the reciprocating feeder push rod is connected with a reciprocating traveling body (7), the reciprocating traveling body (7) is directly connected with a spiral bearing (10) which can keep the traveling body to move relative to a traveling track in a reciprocating manner through a traveling line, the traveling body is placed on a clamping groove formed by an upper parallel traveling track (9) and a lower parallel traveling track (9), the traveling track (9) is fixed on a track supporting part (8) on a base, the tail end of the traveling track (9) is connected with a traveling body driving member (11), the spiral bearing (10) which keeps the traveling body to move relative to the traveling track is placed in the middle of the clamping groove formed by the upper parallel traveling track (9) and the lower parallel traveling track, the spiral bearing (10) is directly connected with a driving component (11) of the advancing body, and a push rod of the reciprocating feeder is connected with the reciprocating feeder through a sealing device (12);
the reciprocating feeder push rod sealing device (12) consists of a moving part reciprocating feeder push rod (13), a static part stuffing box (14) and stuffing (15).
2. The feeding device of a continuous scrap tire cracking furnace according to claim 1, wherein: the continuous feeding device is characterized in that a two-stage feeding mechanism is formed by a spiral feeder (4) and a reciprocating feeder (6), and a storage bin (1) is indirectly communicated with the waste tire cracking furnace through the two-stage feeding mechanism, so that the spiral feeder (4) is prevented from being blocked due to softening and adhesion of waste tire materials caused by high temperature of the waste tire cracking furnace; in order to ensure that the gas in the cracking furnace does not reversely flow into the screw feeder (4) and the storage bin (1), the tail end of the screw feeder (4) is connected with a screw feeder blowing device (5), and nitrogen is introduced to serve as protective gas of the storage bin (1) and the screw feeder (4).
3. The feeding device of a continuous scrap tire cracking furnace according to claim 1, wherein: the inlet of the reciprocating feeder (6) is simultaneously connected with a reciprocating feeder push rod (13) and a sealing device (12), and the sealing device (12) consists of a moving part reciprocating feeder push rod (13), a static part stuffing box (14) and a stuffing (15).
4. A method for feeding a feeding apparatus of a continuous type scrap tire cracking furnace according to claim 1, wherein: the method comprises the following steps:
(a) the storage bin (1) is filled with materials, and the material amount in the storage bin is mastered at any time through the visual window;
(b) opening a gas flow valve of a blowing device (5) of the spiral feeder (4), controlling the gas flow at a certain flow rate to purge the whole feeding device, and discharging air;
(c) starting a first-stage spiral feeding motor (3) to drive a spiral feeder (4), so that the material is spirally conveyed forwards through a discharging barrel (2) and falls into a second-stage reciprocating feeder (6) through a blowing device (5);
(d) starting a traveling body driving member (11) of the second-stage reciprocating feeder (6) to drive a feeder push rod (13) and link the traveling body (7) to keep the traveling body (7) to perform reciprocating motion between clamping grooves formed by an upper parallel traveling track and a lower parallel traveling track (9) through the transmission action of a spiral bearing (10), and directly pushing waste tire particles into a high-temperature cracking furnace;
(e) the above steps are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041203.0A CN111234852A (en) | 2020-01-15 | 2020-01-15 | Feeding device and feeding method of continuous waste tire cracking furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041203.0A CN111234852A (en) | 2020-01-15 | 2020-01-15 | Feeding device and feeding method of continuous waste tire cracking furnace |
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| CN111234852A true CN111234852A (en) | 2020-06-05 |
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| CN202010041203.0A Pending CN111234852A (en) | 2020-01-15 | 2020-01-15 | Feeding device and feeding method of continuous waste tire cracking furnace |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428588A (en) * | 2021-05-27 | 2021-09-24 | 李孟娇 | Screw machine device with shaft and without tail seat for industrial organic waste residue continuous cracking furnace system |
| CN113892679A (en) * | 2021-09-27 | 2022-01-07 | 浙江中烟工业有限责任公司 | Tobacco raw material feeding device of dry distillation fluidized bed and system thereof |
| CN116358360A (en) * | 2023-03-28 | 2023-06-30 | 浏阳市东方海岸电子科技有限公司 | Handheld intelligent electronic spraying decoration device |
| CN116553100A (en) * | 2023-05-23 | 2023-08-08 | 江苏增光新材料科技股份有限公司 | Material metering and conveying device for asphalt processing |
| US11827466B2 (en) * | 2020-12-21 | 2023-11-28 | One Pass Innovators, LLC | Double auger metering apparatus |
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| CN116358360B (en) * | 2023-03-28 | 2023-09-29 | 浏阳市东方海岸电子科技有限公司 | Handheld intelligent electronic spraying decoration device |
| CN116553100A (en) * | 2023-05-23 | 2023-08-08 | 江苏增光新材料科技股份有限公司 | Material metering and conveying device for asphalt processing |
| CN116553100B (en) * | 2023-05-23 | 2023-12-19 | 江苏增光新材料科技股份有限公司 | Material metering and conveying device for asphalt processing |
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Application publication date: 20200605 |