Spiral stockpiling sealing structure
By using a spiral stacking sealing structure, which combines two spiral conveyors and a stacking surge pipe, the problems of sealing complexity and high cost in pyrolysis engineering are solved, the stability and composition simplification of pyrolyzed bio-oil are achieved, and the product value of the pyrolysis process is improved.
Patent Information
- Application Number
- CN202520280562.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing pyrolysis projects, the sealed feeding and slag discharge processes are complex and costly, resulting in unstable and easily aged pyrolyzed bio-oils with complex compositions that are difficult to separate and improve, and low-value products from the pyrolysis process.
The spiral stacking sealing structure is adopted. Through the combination of two spiral conveyors and the stacking surge pipe, material blockage is formed to isolate the furnace from the external atmosphere, so as to achieve safe sealing for continuous feeding and slag discharge.
It simplifies the continuous process of pyrolysis gasification engineering, improves the sealing effect, reduces costs, stabilizes the quality of pyrolysis bio-oil, and simplifies the component separation process.
Smart Images
Figure CN223878825U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to environmental protection field pyrolysis gasification engineering and equipment manufacturing industry, and specifically relates to a spiral stockpiling sealing structure. BACKGROUND
[0002] The pyrolysis resource technology is one of the domestic and foreign solid waste recycling treatment means, and in the continuous pyrolysis engineering, especially the raw material feeding and hot slag discharging of continuous dry distillation cracking furnace, must be carried out in the state of air isolation, and the pyrolysis is an important waste biomass resource utilization technology, and through the biomass pyrolysis under the condition of oxygen deficiency, renewable bio-oil, biochar and part of pyrolysis gas can be obtained.The existing engineering in the market mostly adopts the high-pressure nitrogen and other inert gas mode to isolate air and furnace, realizes sealed feeding and slag sealing, and the process engineering is relatively complex, and the cost is relatively high.However, there are two serious problems at present, one is that the pyrolysis bio-oil is unstable and easy to deteriorate, and the composition is complex and difficult to separate and upgrade, and the other is that the value of pyrolysis process product is low. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned prior art deficiencies, and proposes a spiral stockpiling sealing structure, which adopts stockpiling to form material sealing to isolate the furnace from the external atmosphere, realizes continuous feeding and slag sealing safety, and aims at simplifying the continuous process flow of pyrolysis gasification engineering.
[0004] The utility model adopts the following technical scheme to realize:
[0005] A spiral stockpiling sealing structure, including two spiral conveyors, the first spiral conveyor and the second spiral conveyor and the stockpiling surge pipe, wherein the first spiral conveyor and the second spiral conveyor are arranged in an up-down position, the stockpiling surge pipe is vertically arranged, and is connected with the two spiral conveyors.
[0006] The tail end of the first spiral conveyor is provided with a reverse twisted blade, and the positive twisted blade of the twisted shaft is provided with a gap shaft section extrusion area.
[0007] The stockpiling surge pipe is arranged above the light shaft section extrusion area of the first spiral conveyor and the spiral twisted shaft, and is connected with the first spiral conveyor and the second spiral conveyor.
[0008] The front part of the first spiral conveyor is provided with a feeding bin.
[0009] The length-diameter ratio coefficient of the stockpiling surge pipe is not greater than 3 times.
[0010] The stockpiling surge pipe is arranged in a vertical direction, and the front end of the second spiral conveyor is connected with the upper opening of the stockpiling surge pipe.
[0011] The lower screw conveyor controls the material to surge upward under pressure, and the pipe connected with the two screw conveyors forms a congestion and pile-up, thereby achieving the effect of isolation and sealing.
[0012] The twisted shaft structure is provided with a feeding conveying section, a reverse twisted blade material blocking section, a pile-up isolation section and a feeding conveying section.
[0013] The second screw conveyor is transported and discharged through the twisted shaft. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 Structure diagram;
[0015] In the figure: 1. The first screw conveyor, 2. The bin, 3. The twisted shaft, 4. The machine shell, 5. The extrusion area, 6. The second screw conveyor, 7. The twisted shaft, 8. The pile-up surge pipe, 9. The twisted blade. DETAILED DESCRIPTION
[0016] The technical scheme in the embodiments of the present application is clearly and completely described in combination with the drawings, and the described implementation examples are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other similar embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of protection of the present application.
[0017] As shown in the figure, a screw pile-up sealing structure comprises two screw conveyors and a pile-up surge pipe 8. The first screw conveyor 1 and the second screw conveyor 6 are arranged in an up-down position, and the pile-up surge pipe 8 is arranged vertically and connected with the two screw conveyors.
[0018] The tail end of the twisted shaft 3 of the first screw conveyor 1 is provided with a reverse twisted blade 9, and the normal twisted blade of the twisted shaft 3 is spaced apart from the optical shaft section gap extrusion area 5. The front part of the machine shell 4 of the first screw conveyor 1 is provided with a feeding bin 2 or a discharge port of a butt joint furnace, and the pile-up surge pipe 8 is arranged above the extrusion area 5 of the twisted shaft 3 of the first screw conveyor 1.
[0019] The pile-up surge pipe 8 is connected with the first screw conveyor 1 and the second screw conveyor 6, and the length-diameter ratio coefficient of the pile-up surge pipe 8 is not greater than 3 times. The pile-up surge pipe 8 is arranged in a vertical direction, and the front end of the second screw conveyor 6 is connected with the upper opening of the pile-up surge pipe 8. The second screw conveyor 6 is transported and discharged through the twisted shaft 7.
[0020] The specific implementation process is that the pyrolysis raw material enters the first screw conveyor 1 from the bin 2, the material is transported to the tail end of the screw conveyor 1 through the twisted shaft 3, the reverse twisted blade 9 arranged at the tail end of the twisted shaft 3 and the normal twisted blade interval light shaft section of the twisted shaft 3 form a material extrusion area 5, the reverse twisted blade 9 and the normal twisted blade of the twisted shaft 3 extrude the material, and the material is upwardly surged to form a material pile thickness in the material pile surge pipe 8, when the material continues to surge and move upwardly, enters the second screw conveyor 6, and the material is scraped away through the twisted shaft 7 to realize the material pile conveying process.
[0021] Through the cooperation of the above structure and the two screw conveyors, the conveying process can be sealed.
Claims
1. A spiral stockpile sealing structure, characterised by, The device comprises two screw conveyors, a first screw conveyor (1) and a second screw conveyor (6) and a stock surge pipe (8), wherein the first screw conveyor (1) and the second screw conveyor (6) are arranged in an up-down position, and the stock surge pipe (8) is arranged vertically and connected with the two screw conveyors.
2. The spiral stockpile seal structure of claim 1, wherein, The tail end of the first screw conveyor is provided with reverse screw leaves, and the reverse screw leaves are arranged in a gap shaft section extrusion area with the forward screw leaves of the screw shaft.
3. The spiral stockpile seal structure of claim 1, wherein, The stock surge pipe (8) is arranged above the light shaft section extrusion area of the first screw conveyor and the screw shaft, and is connected with the first screw conveyor and the second screw conveyor.
4. The spiral stockpile seal structure of claim 1, wherein, The front part of the casing (4) of the first screw conveyor (1) is provided with a feeding bin (2).
5. The spiral stockpile seal structure of claim 3, wherein, The length-diameter ratio coefficient of the stock surge pipe (8) is not greater than 3 times.
6. The spiral stockpile seal structure of claim 3, wherein, The stock surge pipe (8) is arranged vertically, and the front end of the second screw conveyor is connected with the upper opening of the stock surge pipe (8).
7. The spiral stockpile seal structure of claim 1, wherein, The lower screw conveyor controls the upward surge of the material under pressure, and the pipe connected with the two screw conveyors forms a congestion stock, which plays a role of isolation and sealing.
8. The spiral stockpile seal structure of claim 1, wherein, The screw shaft structure is provided with a feeding conveying section, a reverse screw leaf blocking section, a stock isolation section and a feeding conveying section.
9. The spiral stockpile seal of claim 1, wherein, The second screw conveyor (6) is transported and discharged through the screw shaft (7).