Drying system suitable for biomass carbonization raw material pretreatment
By placing the combustible gas pipeline inside the high-temperature hot flue gas pipeline, and using the high-temperature flue gas for heat preservation, tar precipitation is avoided, thus solving the problems of blockage and heat loss in the carbonized combustible gas pipeline and realizing the continuous operation and safe shutdown of the biomass carbonization system.
Patent Information
- Application Number
- CN202422422823.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In existing biomass carbonization technologies, the carbonized combustible gas releases tar and wood vinegar gas during pipeline transportation due to temperature drop, causing pipeline blockage and preventing continuous operation of the equipment. Furthermore, the carbonized combustible gas pipeline and high-temperature hot smoke pipeline occupy a large area and suffer severe heat loss. When the dryer is shut down, the material spontaneously combusts and is damaged.
The combustible gas pipeline is placed inside the high-temperature hot flue gas pipeline, and the high-temperature flue gas is used for heat preservation and heating to avoid tar precipitation. The multiple discharge port design keeps the drying system running when the system is shut down to prevent the material from spontaneously combusting.
The problems of pipe blockage and heat loss were solved, enabling continuous operation and safe shutdown of the carbonization and drying system, and reducing equipment space occupation and heat loss.
Smart Images
Figure CN223633298U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of biomass carbonization, and particularly relates to a drying system suitable for biomass carbonization raw material pretreatment. BACKGROUND
[0002] Biomass is a renewable resource, and has characteristics such as wide source, renewability and low pollution. Efficient use of biomass materials is of great significance for solving the ecological environment problems in China. Biomass drying and carbonization process is an ideal biomass energy resource utilization technology. The current technology uses the high-temperature flue gas and carbonization combustible gas produced by carbonization as the heat source of the dryer, and the flue gas and carbonization combustible gas are introduced into the dryer hot blast furnace through pipelines from the carbonization machine, and the dried materials are directly conveyed into the carbonization machine through a belt conveyor.
[0003] The prior art has the following problems:
[0004] The carbonization combustible gas is conveyed to the dryer hot blast furnace through a pipeline, and temperature drop inevitably occurs in the process. The carbonization combustible gas contains components such as tar gas and wood vinegar gas, and as the temperature decreases, tar and wood vinegar are precipitated and adhered to the pipe wall, thereby causing pipe blockage and equipment failure.
[0005] The carbonization combustible gas pipeline and the high-temperature flue gas pipeline occupy a large area, and each pipeline inevitably loses heat, resulting in large heat loss.
[0006] When the machine is stopped, the carbonization system no longer feeds materials, and as the dried materials are directly conveyed into the carbonization machine, the dryer is forced to stop running. At this time, the carbonization system still produces carbonization combustible gas and high-temperature flue gas, which enters the dryer, causing the materials in the dryer to self-ignite and damage the dryer.
[0007] Therefore, in order to solve the above problems, a drying system suitable for biomass carbonization raw material pretreatment is provided. UTILITY MODEL CONTENTS
[0008] The utility model aims to provide a drying system suitable for biomass carbonization raw material pretreatment, so as to solve the problem of biomass carbonization in the prior art mentioned in the background.
[0009] In order to achieve the above object, the utility model provides the following technical scheme: A kind of drying system suitable for biomass carbonization raw material pretreatment, including large inclination belt conveyor, the outside fixed connection of large inclination belt conveyor is connected with feeding auger, the fixed connection of the upper of feeding auger is flue, the outside fixed connection of the flue is hot blast furnace, the upper fixed connection of the hot blast furnace is high-temperature hot smoke pipeline, the inside fixed connection of high-temperature hot smoke pipeline is combustible gas pipeline, the right side fixed connection of the flue is drying machine, the outside fixed connection of the drying machine is fixed connection with cyclone dust collector, the upper fixed connection of cyclone dust collector is induced draft fan, the lower fixed connection of cyclone dust collector is discharge auger, the outside fixed connection of discharge auger is adapter auger, the outside fixed connection of discharge auger is carbonization feeding belt conveyor.
[0010] Preferably, the inside movable connection of the large inclination belt conveyor is movable wheel, the outside movable connection of the movable wheel is conveying belt, the outside fixed connection of the conveying belt is movable plate.
[0011] Preferably, the outside fixed connection of the feeding auger is feeding motor, the outside fixed connection of the feeding auger is conveying pipe.
[0012] Preferably, the outside fixed connection of the hot blast furnace is combustion machine, the outside fixed connection of the hot blast furnace is combustion chamber, the outside fixed connection of the combustion chamber is fixed connection with closed burner, the right side fixed connection of the closed burner is combustible gas pipeline, the outside fixed connection of the combustible gas pipeline is high-temperature hot smoke pipeline, the outside fixed connection of high-temperature hot smoke pipeline is hot smoke connecting pipe.
[0013] Preferably, the outside fixed connection of the drying machine is fixed frame, the outside fixed connection of the drying machine is cyclone dust collector, the outside fixed connection of cyclone dust collector is fixed connection with dust removal connecting pipe, the outside fixed connection of the dust removal connecting pipe is induced draft fan, the outside fixed connection of the induced draft fan is spray tower, the outside fixed connection of the spray tower is access hole, the outside fixed connection of the spray tower is water inlet pipeline.
[0014] Preferably, the lower fixed connection of the discharge auger is discharge motor, the outside fixed connection of the adapter auger is adapter motor.
[0015] Preferably, the inside movable connection of the carbonization feeding belt conveyor is feeding belt, the outside fixed connection of the feeding belt is feeding plate, the outside fixed connection of the feeding plate is driving motor.
[0016] Compared with the prior art, the utility model has the advantages that: the combustible gas pipeline is arranged in the high-temperature hot smoke pipeline, the problems that the carbonization combustible gas is blocked in the pipeline due to the heat dissipation and the precipitation of tar and wood vinegar, and the carbonization combustible gas pipeline and the high-temperature hot smoke pipeline occupy more space and the heat loss is too large are solved, the discharge auger has two discharge ports, the discharge port 1 is connected with the switching auger, and the discharge port 2 is connected with the carbonization feeding belt conveyor, the problem that the dryer is forced to stop when the drying and carbonization system stops, the material in the dryer is self-ignited, and the dryer is damaged is solved.
[0017] 1, the utility model discloses a feeding auger's outside fixed connection has the feeding motor, the feeding auger's outside fixed connection has the conveying pipe, the hot blast furnace's outside fixed connection has the combustion machine, the hot blast furnace's outside fixed connection has the combustion chamber, the combustion chamber outside fixed connection has the closed burner, the closed burner's right side fixed connection has the combustible gas pipeline, the combustible gas pipeline's outside fixed connection has the high-temperature hot smoke pipeline, the high-temperature hot smoke pipeline's outside fixed connection has the hot smoke connecting pipe, can prevent carbonization combustible gas because heat dissipation and the precipitation of tar, wood vinegar etc., reduce carbonization and drying system cannot continuously run problem.
[0018] 2, the utility model discloses a dryer's outside fixed connection has the fixed frame, the dryer's outside fixed connection has the cyclone dust collector, the cyclone dust collector's outside fixed connection has the dust removal connecting pipe, the dust removal connecting pipe's outside fixed connection has the induced draft fan, the induced draft fan's outside fixed connection has the spray tower, the spray tower's outside fixed connection has the access hole, the spray tower's outside fixed connection has the water inlet pipeline, the discharge auger's below fixed connection has the discharge motor, the switching auger's outside fixed connection has the switching motor, the carbonization feeding belt conveyor's inside swing joint has the feeding belt, the feeding belt's outside fixed connection has the feeding plate, the feeding plate's outside fixed connection has the drive motor, can when the device stops carbonization system no longer feed, make drying system still can keep continuing to run, reduce because the dryer is forced to stop, lead to the material in the dryer self-ignition damage dryer problem. ACCURACY OF DRAWINGS
[0019] Figure 1 It is the utility model structure plan view;
[0020] In the figure: 1, large angle belt conveyor; 101, conveying belt; 102, movable wheel; 103, movable plate; 2, feeding auger; 201, feeding motor; 202, conveying pipe; 3, hot blast stove; 301, combustion machine; 302, combustion chamber; 4, flue; 5, combustible gas pipeline; 501, closed burner; 6, high-temperature hot smoke pipeline; 601, hot smoke connecting pipe; 7, dryer; 701, fixed frame; 8, cyclone dust collector; 801, dust removal connecting pipe; 9, induced draft fan; 10, spray tower; 1001, manhole; 1002, water inlet pipeline; 11, discharging auger; 1101, discharging motor; 12, adapter auger; 1201, adapter motor; 13, carbonization feeding belt conveyor; 1301, feeding belt; 1302, driving motor; 1303, feeding plate. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] Please refer to Figure 1 The present application provides an embodiment:
[0023] The drying system suitable for biomass carbonization raw material pretreatment comprises a large angle belt conveyor 1, an outer side of the large angle belt conveyor 1 is fixedly connected with a feeding auger 2, an upper side of the feeding auger 2 is fixedly connected with a flue 4, an outer side of the flue 4 is fixedly connected with a hot blast stove 3, an upper side of the hot blast stove 3 is fixedly connected with a high-temperature hot smoke pipeline 6, an inner side of the high-temperature hot smoke pipeline 6 is fixedly connected with a combustible gas pipeline 5, a right side of the flue 4 is fixedly connected with a dryer 7, an outer side of the dryer 7 is fixedly connected with a cyclone dust collector 8, an upper side of the cyclone dust collector 8 is fixedly connected with an induced draft fan 9, a lower side of the cyclone dust collector 8 is fixedly connected with a discharging auger 11, an outer side of the discharging auger 11 is fixedly connected with an adapter auger 12, and an outer side of the discharging auger 11 is fixedly connected with a carbonization feeding belt conveyor 13.
[0024] Further, an outer side of the feeding auger 2 is fixedly connected with a feeding motor 201, and an outer side of the feeding auger 2 is fixedly connected with a conveying pipe 202, so that the material can be conveyed to the dryer by starting the feeding motor 201.
[0025] Further, the outer side of the hot blast stove 3 is fixedly connected with a combustion machine 301, the outer side of the hot blast stove 3 is fixedly connected with a combustion chamber 302, the outer side of the combustion chamber 302 is fixedly connected with a closed burner 501, the right side of the closed burner 501 is fixedly connected with a combustible gas pipeline 5, the outer side of the combustible gas pipeline 5 is fixedly connected with a high-temperature hot smoke pipeline 6, the outer side of the high-temperature hot smoke pipeline 6 is fixedly connected with a hot smoke connecting pipe 601, by conveying combustible gas to the hot blast stove 3, the material can be dried and heated.
[0026] Further, the outer side of the drying machine 7 is fixedly connected with a fixing frame 701, the outer side of the drying machine 7 is fixedly connected with a cyclone dust collector 8, the outer side of the cyclone dust collector 8 is fixedly connected with a dust removal connecting pipe 801, the outer side of the dust removal connecting pipe 801 is fixedly connected with an induced draft fan 9, the outer side of the induced draft fan 9 is fixedly connected with a spray tower 10, the outer side of the spray tower 10 is fixedly connected with an access hole 1001, the outer side of the spray tower 10 is fixedly connected with a water inlet pipeline 1002, by starting the induced draft fan 9, the high-temperature hot gas can be sucked into the drying machine, and the dried flue gas is sucked out and cleaned.
[0027] Further, the lower side of the discharging auger 11 is fixedly connected with a discharging motor 1101, the outer side of the switching auger 12 is fixedly connected with a switching motor 1201, by starting the switching motor 1201, the material can be discharged through the switching auger 12.
[0028] Further, the inside of the carbonization feeding belt conveyor 13 is movably connected with a feeding belt 1301, the outer side of the feeding belt 1301 is fixedly connected with a feeding plate 1303, the outer side of the feeding plate 1303 is fixedly connected with a driving motor 1302, by the driving motor 1302, the material can be conveyed into the carbonization system.
[0029] Working principle: in the use process, first, the combustible gas pipeline 5 is arranged coaxially in the high-temperature hot flue gas pipeline 6, because the temperature of the high-temperature flue gas is usually above 400 DEG C, the high-temperature flue gas is used to heat the carbonized combustible gas, so that the tar and wood vinegar in the carbonized combustible gas in the combustible gas pipeline 5 are always in gaseous state, thereby the blockage problem of the combustible gas pipeline 5 is eliminated, because the combustible gas pipeline 5 is arranged in the high-temperature hot flue gas pipeline 6, the pipeline occupies the site is obviously reduced, at the same time, because the contact area of the pipeline with the outside world is reduced, the heat dissipation is greatly reduced, the heat loss is obviously reduced, the heat supply stability of the drying system is ensured, when the drying and carbonization system is running, the raw material enters the feeding auger 2 through the large inclination belt conveyor 1, is conveyed into the dryer 7 by the feeding auger 2, is sent into the carbonization feeding belt conveyor 13 by the discharging auger 11 after being dried by the dryer 7, then enters the carbonization system, the combustible gas generated by the carbonization system enters the hot blast furnace 3 through the combustible gas pipeline 5 and is combusted and released heat, the high-temperature flue gas generated by the carbonization system enters the hot blast furnace 3 through the high-temperature hot flue gas pipeline 6 and is mixed and absorbed heat, the high-temperature hot air generated by the hot blast furnace 3 enters the dryer 7 under the extraction of the induced draft fan 9 through the flue 4, the raw material and the hot air are fully contacted and heat exchanged in the dryer 7, the heat exchanged hot air is discharged from the rear end of the dryer 7 and enters the cyclone dust collector 8, then is extracted by the induced draft fan 9 and is sent into the spray tower 10 and is discharged, when the system is stopped, the carbonization system does not feed again, because there is still residual material in the carbonization machine, the combustible gas and the high-temperature flue gas generated by the carbonization continue to enter the dryer, at this time, the drying system continues to keep running, the discharging auger 11 has two discharging ports, the discharging port 1 is connected with the switching auger 12, the discharging port 2 is connected with the carbonization feeding belt conveyor 13, because the discharging port 1 is in front of the discharging port 2, when the switching auger 12 is started, the dried material will directly fall into the switching auger 12 from the discharging port 1 and is sent out by the switching auger 12, and does not enter the carbonization system, thereby the safety of the system shutdown is ensured.
[0030] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can easily implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolution made by the skilled person in the art without departing from the technical scheme of the present application, and the above disclosed technical contents, are all equivalent embodiments of the present application; meanwhile, any equivalent changes, modifications and evolution made according to the essential technology of the present application, are all within the protection scope of the technical scheme of the present application.
Claims
1. A drying system suitable for use in the pretreatment of biomass feedstock for carbonization, comprising: The large-inclination belt conveyor (1) is characterized in that the outer side of the large-inclination belt conveyor (1) is fixedly connected with an upper feeding auger (2), the upper side of the upper feeding auger (2) is fixedly connected with a fire channel (4), the outer side of the fire channel (4) is fixedly connected with a hot blast stove (3), the upper side of the hot blast stove (3) is fixedly connected with a high-temperature hot smoke pipeline (6), the inner side of the high-temperature hot smoke pipeline (6) is fixedly connected with a combustible gas pipeline (5), the right side of the fire channel (4) is fixedly connected with a dryer (7), the outer side of the dryer (7) is fixedly connected with a cyclone dust collector (8), the upper side of the cyclone dust collector (8) is fixedly connected with an induced draft fan (9), the lower side of the cyclone dust collector (8) is fixedly connected with a discharging auger (11), the outer side of the discharging auger (11) is fixedly connected with a switching auger (12), and the outer side of the discharging auger (11) is fixedly connected with a carbonization upper feeding belt conveyor (13).
2. The drying system suitable for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The inner side of the large-inclination belt conveyor (1) is movably connected with a movable wheel (101), the outer side of the movable wheel (101) is movably connected with a conveying belt (102), and the outer side of the conveying belt (102) is fixedly connected with a movable plate (103).
3. The drying system for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The outer side of the upper feeding auger (2) is fixedly connected with an upper feeding motor (201), and the outer side of the upper feeding auger (2) is fixedly connected with a conveying pipe (202).
4. The drying system for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The outer side of the hot blast stove (3) is fixedly connected with a combustion machine (301), the outer side of the hot blast stove (3) is fixedly connected with a combustion chamber (302), the outer side of the combustion chamber (302) is fixedly connected with a sealed burner (501), the right side of the sealed burner (501) is fixedly connected with the combustible gas pipeline (5), the outer side of the combustible gas pipeline (5) is fixedly connected with the high-temperature hot smoke pipeline (6), and the outer side of the high-temperature hot smoke pipeline (6) is fixedly connected with a hot smoke connecting pipe (601).
5. The drying system for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The outer side of the dryer (7) is fixedly connected with a fixing frame (701), the outer side of the dryer (7) is fixedly connected with the cyclone dust collector (8), the outer side of the cyclone dust collector (8) is fixedly connected with a dust removal connecting pipe (801), the outer side of the dust removal connecting pipe (801) is fixedly connected with the induced draft fan (9), the outer side of the induced draft fan (9) is fixedly connected with a spray tower (10), the outer side of the spray tower (10) is fixedly connected with an inspection hole (1001), the outer side of the spray tower (10) is fixedly connected with a water inlet pipeline (1002).
6. The drying system suitable for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The lower side of the discharging auger (11) is fixedly connected with a discharging motor (1101), and the outer side of the switching auger (12) is fixedly connected with a switching motor (1201).
7. The drying system for pretreatment of biomass carbonization raw material according to claim 1, characterized in that: The inner side of the carbonization upper feeding belt conveyor (13) is movably connected with an upper feeding belt (1301), the outer side of the upper feeding belt (1301) is fixedly connected with an upper feeding plate (1303), and the outer side of the upper feeding plate (1303) is fixedly connected with a driving motor (1302).