CN220072786U - Kitchen garbage preliminary treatment solid slag mummification's screw conveyer - Google Patents
Kitchen garbage preliminary treatment solid slag mummification's screw conveyer Download PDFInfo
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- CN220072786U CN220072786U CN202321639658.8U CN202321639658U CN220072786U CN 220072786 U CN220072786 U CN 220072786U CN 202321639658 U CN202321639658 U CN 202321639658U CN 220072786 U CN220072786 U CN 220072786U
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- shell
- air outlet
- air inlet
- air
- kitchen waste
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- 239000007787 solid Substances 0.000 title claims abstract description 36
- 239000002893 slag Substances 0.000 title claims abstract description 31
- 239000010813 municipal solid waste Substances 0.000 title claims description 4
- 239000010806 kitchen waste Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004519 grease Substances 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910003480 inorganic solid Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a kitchen waste pretreatment solid residue drying screw conveyor, which comprises a motor, a shell and a main shaft with screw blades, wherein the shell is obliquely arranged upwards through a bracket, an air inlet port is arranged at the rear side of a feed inlet of the shell and is used for being connected with a high Wen Chouqi discharged by a grease storage tank, and an air outlet port is arranged at the front side of a discharge outlet of the shell and is used for being connected with a gas collecting fan; the shell is provided with a screen plate for blocking solid slag at the air inlet interface and the air outlet interface, a steam coil is fixedly arranged around the periphery of the shell between the air inlet interface and the air outlet interface, a steam inlet is arranged at the rear part of the steam coil, and a condensing water gap is arranged at the front part of the steam coil. The utility model has reasonable structure, can carry out synchronous drying to reduce the water content when conveying and sorting sundries and waste residues, has low energy consumption and can reduce the treatment cost, so that the water content of the solid residues in the pretreatment of the kitchen waste meets the water content requirement of terminal disposal places such as landfill sites, incineration plants and the like on the solid waste entering the field.
Description
Technical Field
The utility model relates to a screw conveyor for pretreating kitchen waste and drying solid residues, and belongs to the technical field of kitchen waste treatment.
Background
The common treatment process of the kitchen waste is pretreatment and anaerobic digestion. Before entering an anaerobic digestion system, kitchen waste is generally subjected to pretreatment of sorting, pulping, solid-liquid separation and heating oil extraction. During pretreatment, inorganic solid slag such as separated impurities and solid-liquid separated waste slag is produced, and the water content of the inorganic solid slag is usually about 65%, and the inorganic solid slag is sent to terminal disposal sites such as landfill sites and incineration plants for final disposal. However, the terminal disposal sites such as landfill sites and incineration plants generally have the requirement that the water content of the solid waste entering the site is less than 60%, and the water content of the solid slag in the pretreatment of the kitchen waste cannot always meet the requirement. The other mode is to directly add a set of solid slag drying equipment, which can ensure the moisture content of the sorted sundries and the waste slag after solid-liquid separation, but has the problems of high investment, large occupied area and high treatment cost.
Disclosure of Invention
The utility model aims to provide a kitchen waste pretreatment solid residue drying screw conveyor which has reasonable structure, can be dried to reduce the water content when conveying and sorting sundries and waste residues, has low energy consumption and can reduce the treatment cost,
the technical scheme for achieving the purpose is as follows: the utility model provides a kitchen garbage preliminary treatment solid slag mummification's screw conveyer, includes motor, shell and has helical blade's main shaft, the main shaft pass through the bearing and install the both ends at the shell, the output side and the main shaft of motor are connected, upper portion is equipped with the feed inlet before the shell, rear lower part is equipped with the discharge gate, its characterized in that: the shell is arranged in an upward inclined way through the bracket, an air inlet connector is arranged at the rear side of the shell positioned at the feed inlet and is used for being connected with a high Wen Chouqi discharged by the grease storage tank, and an air outlet connector is arranged at the front side of the shell positioned at the discharge outlet and is used for being connected with the air collecting fan; the shell is provided with a screen plate for blocking solid slag at the inlet interface and the outlet interface, a steam coil is fixedly arranged around the periphery of the shell between the inlet interface and the outlet interface, and a steam inlet and a condensing water gap are arranged at the rear part and the front part of the steam coil.
The beneficial effects of the technical scheme adopted by the utility model are as follows:
1. according to the utility model, the air inlet connector is arranged at the rear end of the shell, which is positioned at the feed inlet, and is used for being connected with the high Wen Chouqi discharged by the grease storage tank, the air outlet connector is arranged at the front part of the shell, which is positioned at the discharge outlet, and is connected with the air collecting fan, so that the high Wen Chouqi collected and discharged by the grease storage tank can be introduced into the shell to utilize high-temperature odor, and the high Wen Chouqi heats the solid slag to reduce the water content in the process of conveying the sorted sundries and the waste slag by the helical blade, and particularly the air collecting fan is assisted to accelerate the air flow speed entering the shell to pass through the surface of the solid slag, thereby accelerating the evaporation of the sorted sundries and the moisture on the surface of the waste slag, and achieving the intensified drying effect. The utility model can fully utilize the high Wen Chouqi discharged by the grease storage tank, change waste into valuable and save energy consumption.
2. The steam coil is fixed on the shell in a surrounding way, so that the steam coil and the shell are integrated into a whole, saturated steam enters from the upper part of the steam coil and exits from the lower part of the steam coil, and the steam path and the solid slag are opposite in conveying direction, so that countercurrent heat exchange is formed, heat exchange is performed between the steam coil and the solid slag pretreated by kitchen waste in the heating and conveying process to the greatest extent, the solid slag conveying and indirect heating and drying functions are integrated, and the water content of solid slag discharging is ensured.
3. The utility model adopts the waste high-temperature odor to directly heat the sorted sundries and waste residues in transportation, and simultaneously carries out heat exchange on the sorted sundries and waste residues in transportation through indirect countercurrent of steam, so that the kitchen waste pretreatment solid residues are conveyed to an outward transportation vehicle, and simultaneously, the heating and drying can be realized, and the water content of the kitchen waste pretreatment solid residues can meet the requirement of terminal disposal places such as landfill sites and the like on the water content of the entering solid wastes. The utility model improves the spiral conveyor, has reasonable structure, does not need investment in drying equipment, can play a better role in drying, saves the occupied area, is economical and practical, and can reduce the treatment cost.
Drawings
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a screw conveyor for pretreating kitchen waste and drying solid residues.
Fig. 2 is a schematic top view of fig. 1.
Fig. 3 is a schematic diagram of the internal structure of the screw conveyor for pretreating kitchen waste and drying solid residues.
Fig. 4 is a schematic diagram of the structure of the air outlet interface of the present utility model.
Wherein: 1-motor, 2-shell, 2-1-feed inlet, 2-inlet interface, 2-3-outlet interface, 2-31-outlet duct, 2-32-gas hood, 2-4-access hole, 2-5-discharge hole, 2-6-evacuation mouth, 3-steam coil, 3-1-condensing water gap, 3-2-steam inlet, 4-rock wool heat preservation, 5-bracket, 6-main shaft, 7-helical blade, 8-screen plate, 9-sealing gasket.
Detailed Description
The utility model relates to a kitchen waste pretreatment solid residue drying screw conveyor, which is shown in figures 1-3, and comprises a motor 1, a shell 2 and a main shaft 6 with screw blades 7, wherein the main shaft 6 is arranged at two ends of the shell 2 through bearings, the output side of the motor 1 is connected with the main shaft 6, the front upper part of the shell is provided with a feed inlet 2-1, the rear lower part of the shell is provided with a discharge outlet 2-5, the shell 2 can be made of 304 stainless steel, the main shaft 6 and the screw blades 7 can be made of 20# steel, the length of the main shaft 6 and the diameter of the screw blades 7 can be determined according to the heat exchange area required by drying materials, the screw blades 7 on the main shaft 6 are arranged in a reverse direction, the problem of unsmooth screw discharge is effectively prevented through the screw blades with the reverse rear ends, the reinforced residues are reliably pushed from the feed inlet 2-1 to the discharge outlet 2-5, and the solid residues are discharged to an outward transportation vehicle.
As shown in figures 1-3, the shell 2 of the utility model is arranged in an upward inclined way through the bracket 5, the included angle alpha between the axis of the main shaft 6 and the horizontal plane is 15-30 degrees, and the included angle alpha between the axis of the main shaft 6 and the horizontal plane is 20 degrees, so that the slag is conveniently discharged onto an outward vehicle on one hand, and the condensation water in the steam coil pipe 3 can be reduced on the other hand. The utility model relates to a kitchen waste oil extraction system, which is characterized in that an air inlet connector 2-2 is arranged at the rear end of a feed inlet 2-1 and is used for being connected with a high Wen Chouqi of an oil storage tank discharge set, the air inlet connector 2-2 is connected and communicated with an odor outlet at the top of the oil storage tank through an air inlet pipe, when high-purity oil extracted by the kitchen waste oil extraction system is sent into the oil storage tank to be cached, heating and heat preservation measures are generally adopted to avoid solidification of the oil, the odor collected by the oil storage tank is high Wen Chouqi and almost does not contain water vapor, the high Wen Chouqi in the oil storage tank is led into a deodorization system through an air collecting fan to be cooled and then treated by the deodorization system, and the high Wen Chouqi of the oil storage tank is led into the shell 2 to be used as heat energy to dry solid slag and then enter the deodorization system to be treated, so that the energy waste is recycled, and the energy consumption is saved.
As shown in figures 1-3, the front part of a shell 2 positioned at a discharge hole 2-5 is provided with an air outlet connector 2-3 and is connected with an air collecting fan, the shell 2 is provided with a screen plate 8 for blocking solid slag at the positions of the air inlet connector 2-2 and the air outlet connector 2-3, the air outlet connector 2-3 is connected with the air collecting fan through an odor pipe, and the air flow speed on the surface of the solid slag is accelerated by utilizing the pressurized flow of odor, so that the evaporation of moisture of the solid slag is accelerated, and the water vapor and the malodorous gas in the shell 2 are conveyed to a rear end deodorizing system for treatment through the air collecting fan. Holes are uniformly distributed on the screen plate 8, and the hole diameter is smaller than the particle diameter of the solid slag, so that the solid slag can be prevented from entering an air inlet pipe and an odor pipe in the conveying process, and the screen plate 8 can be made of 304 stainless steel.
As shown in figures 1-4, a steam coil 3 is arranged around the periphery of the shell 2 between an air inlet connector 2-2 and an air outlet connector 2-3, a steam inlet 3-2 is arranged at the top of the steam coil 3, a condensing water gap 3-1 is arranged at the bottom of the steam coil, saturated steam can be introduced into the steam coil 3, particularly, the saturated steam adopts a mode of up-in and down-out and is opposite to the conveying direction of the solid slag in and out to form countercurrent heat exchange, and the water content of discharged materials is ensured to reach the requirement of a terminal disposal field on the premise of optimal heat exchange. As shown in fig. 3, the section of the steam coil pipe 3 is semicircular, and a semicircular opening is attached to and fixed on the shell 2, for example, a semicircular pipe with DN50 is adopted, the semicircular pipe and the shell 2 are integrated, so that the heat exchange efficiency is further improved, the sum of the contact areas of the steam coil pipe 3 and the shell 2 is larger than the heat exchange area required by drying materials, the rock wool heat preservation layer 4 is coated on the steam coil pipe 3, the thickness of the rock wool heat preservation layer 4 is not smaller than 10cm, and the heat energy loss during heat exchange can be reduced.
As shown in figures 1-3, the front part of the shell 2 positioned at the feed inlet 2-1 is also provided with an emptying port 2-6, the upper part positioned at the discharge outlet 2-5 is provided with an overhaul port 2-4, materials in the screw conveyor are emptied through the emptying port 2-6 during equipment overhaul, and the overhaul port 2-4 can be opened to facilitate overhaul when the discharge outlet 2-5 is unsmooth in discharging.
As shown in fig. 4, the air outlet interface 2-3 comprises an air outlet cover 2-32 and an air outlet pipe 2-31 with a flange, wherein the air outlet pipe 2-31 is fixed at the top of the air outlet cover 2-32, the air outlet pipe is connected with an odor pipe through the flange on the air outlet pipe 2-31, the screen plate 8 is arranged on the shell 2 or the air outlet cover 2-32 and covers the air outlet hole of the shell 2, the screen plate 8 can be arranged on the shell 2 through a fastening piece, the screen plate 8 is detachably arranged at the lower part of the air outlet cover 2-32, the air outlet cover 2-32 is conveniently cleaned or replaced, and the air outlet cover 2-32 is arranged on the shell 2 through the fastening piece.
The air inlet connector 2-2 and the air outlet connector 2-3 have the same structure, the air inlet connector 2-2 comprises an air inlet cover and an air inlet pipe with a flange, the air inlet pipe is fixed at the top of the air inlet cover, the screen plate 8 is arranged on the shell 2 or the air inlet cover and covers the air inlet hole of the shell 2, the air inlet cover with a transparent observation window is arranged on the shell 2 through a fastener, a sealing gasket is arranged between the shell 2 and the air inlet cover, the screen plate 8 can be cleaned and replaced by removing the air inlet cover, and the transparent observation window can be arranged on the air inlet cover to observe whether solid slag is stuck at the air inlet hole or not so as to ensure that odor enters the shell 2.
The spiral conveyor for drying the solid residues in the pretreatment of the kitchen waste is suitable for the condition that the water content of the solid residues in the pretreatment of the kitchen waste is reduced by less than 10%.
Claims (8)
1. The utility model provides a kitchen garbage preliminary treatment solid slag drying's screw conveyer, includes motor (1), shell (2) and main shaft (6) that have helical blade (7), main shaft (6) install at the both ends of shell (2) through the bearing, the output side and the main shaft (6) of motor (1) are connected, upper portion is equipped with feed inlet (2-1), rear lower part is equipped with discharge gate (2-5), its characterized in that before shell (2): the shell (2) is arranged in an upward inclined manner through the bracket (5), an air inlet interface (2-2) is arranged at the rear side of the shell (2) positioned at the feed inlet (2-1) and is used for being connected with a high Wen Chouqi discharged by the grease storage tank, and an air outlet interface (2-3) is arranged at the front side of the shell (2) positioned at the discharge outlet (2-5) and is used for being connected with the air collecting fan; the shell (2) is provided with a screen plate (8) for blocking solid slag at the positions of the air inlet interface (2-2) and the air outlet interface (2-3), a steam coil (3) is fixedly arranged around the periphery of the shell (2) between the air inlet interface (2-2) and the air outlet interface (2-3), a steam inlet (3-2) is arranged at the rear part of the steam coil (3), and a condensing water gap (3-1) is arranged at the front part of the steam coil.
2. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the section of the steam coil pipe (3) is semicircular, and the semicircular opening is attached to and fixed on the shell (2), and the rock wool heat insulation layer (4) is coated on the steam coil pipe (3).
3. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the front part of the shell (2) positioned at the feed inlet (2-1) is also provided with an emptying port (2-6), and the upper part of the discharge port (2-5) is provided with an overhaul port (2-4).
4. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the air outlet connector (2-3) comprises an air outlet cover (2-32) and an air outlet pipe (2-31) with a flange, the air outlet pipe (2-31) is fixed at the top of the air outlet cover (2-32), the screen plate (8) is arranged on the shell (2) or the air outlet cover (2-32) and covers the air outlet hole of the shell (2), and the air outlet cover (2-32) is arranged on the shell (2) through a fastener.
5. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the air inlet connector (2-2) comprises an air inlet cover and an air inlet pipe with a flange, the air inlet pipe is fixed at the top of the air inlet cover, the screen plate (8) is arranged on the shell (2) or the air inlet cover and covers the air inlet hole of the shell (2), and the air inlet cover is arranged on the shell (2) through a fastener.
6. A kitchen waste pretreatment solid residue drying screw conveyor according to claim 4 or 5, characterized in that: transparent observation windows are arranged on the air outlet cover (2-32) and the air inlet cover.
7. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the spiral blades (7) on the main shaft (6) are arranged in the opposite direction of the blade at the discharge port (2-5).
8. The screw conveyor for pretreating and drying kitchen waste according to claim 1, wherein: the included angle alpha between the axis of the main shaft (6) and the horizontal plane is 15-30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321639658.8U CN220072786U (en) | 2023-06-27 | 2023-06-27 | Kitchen garbage preliminary treatment solid slag mummification's screw conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321639658.8U CN220072786U (en) | 2023-06-27 | 2023-06-27 | Kitchen garbage preliminary treatment solid slag mummification's screw conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220072786U true CN220072786U (en) | 2023-11-24 |
Family
ID=88830863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321639658.8U Active CN220072786U (en) | 2023-06-27 | 2023-06-27 | Kitchen garbage preliminary treatment solid slag mummification's screw conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220072786U (en) |
-
2023
- 2023-06-27 CN CN202321639658.8U patent/CN220072786U/en active Active
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