CN215941037U - Kitchen waste pretreatment system - Google Patents
Kitchen waste pretreatment system Download PDFInfo
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- CN215941037U CN215941037U CN202121927811.8U CN202121927811U CN215941037U CN 215941037 U CN215941037 U CN 215941037U CN 202121927811 U CN202121927811 U CN 202121927811U CN 215941037 U CN215941037 U CN 215941037U
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Abstract
The utility model discloses a kitchen waste pretreatment system which comprises a kitchen waste bin, a first lifting screw machine, a second lifting screw machine, a crushing, sorting and pulping machine, a slurry dehydrator, a solid-phase conveyor and a waste liquid collecting pool, wherein the kitchen waste bin is provided with a first lifting screw machine; the kitchen waste bin is connected with the first lifting screw machine; the first lifting screw machine is connected with the second lifting screw machine; the second lifting screw machine is connected with the crushing, sorting and pulping machine; the crushing and sorting pulping machine is connected with the slurry dehydrator; the slurry dehydrator is connected with the solid-phase conveyor; the waste liquid collecting tank is connected with the kitchen waste bin, the first lifting screw machine, the second lifting screw machine and the slurry dehydrator. The kitchen waste pretreated solid-phase material separated by the system is sent to the feeding conveyor through the solid-phase conveyor, and the separated liquid phase automatically flows into the waste liquid collecting tank through the pipeline, so that the system has the advantage of good pretreatment effect.
Description
Technical Field
The utility model belongs to the technical field of environmental protection, and relates to a kitchen waste pretreatment system.
Background
The kitchen waste is food processing waste and food residue generated in the production and operation processes of resident daily life and catering industry and unit canteens, and is rich in organic matters, so that a good growth and propagation environment can be provided for various pathogenic microorganisms and various flies carrying the pathogenic microorganisms, and the disease transmission can be caused if the kitchen waste is not properly treated. Because the materials in the kitchen waste are relatively mixed, the kitchen waste contains oily materials and waste liquid as well as objects such as plastics, fibers, glass bottles, bones, bowls and dishes, stones, metal utensils and the like, the pretreatment of the kitchen waste is an essential process, and the difficulty is relatively high. In recent years, a great deal of effort is put into research and development on the kitchen waste pretreatment process in the industry, and the currently common pretreatment method is to carry out solid-liquid separation, crushing, screening, pulping and oil-water separation, wherein the treatment process has long process chain and needs more equipment, the kitchen waste has more pathogenic microorganisms, breeding and propagation are accelerated through layer-by-layer processes, and the equipment has more requirements and occupies larger space; the deoiling performance of the garbage is poor, and the recovery rate of the waste oil in the oil-water separation process is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a kitchen waste pretreatment system, which aims to solve the problem of poor pretreatment effect of the existing kitchen waste pretreatment system.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a kitchen waste pretreatment system comprises a kitchen waste bin, a first lifting screw machine, a second lifting screw machine, a crushing, sorting and pulping machine, a slurry dehydrator, a solid-phase conveyor and a waste liquid collecting pool; the kitchen waste bin is connected with the first lifting screw machine; the first lifting screw machine is connected with the second lifting screw machine; the second lifting screw machine is connected with the crushing, sorting and pulping machine; the crushing and sorting pulping machine is connected with the slurry dehydrator; the slurry dehydrator is connected with the solid-phase conveyor; the waste liquid collecting tank is connected with the kitchen waste bin, the first lifting screw machine, the second lifting screw machine and the slurry dehydrator.
Further, the kitchen waste bin comprises a bin bottom spiral and a bin bottom discharge hole, the bin bottom spiral is arranged at the bottom of the kitchen waste bin, and the bin bottom discharge hole is connected with the first lifting screw machine.
Further, the second lifting screw is provided with a second lifting screw discharge hole, and the second lifting screw discharge hole is connected with the crushing and sorting pulping machine.
Further, the crushing and sorting pulping machine is provided with a crushing and sorting pulping machine liquid outlet.
Further, the width of the cover plate of the first lifting screw machine and the second lifting screw machine is 548 mm.
Further, the width of the shell of the first lifting screw machine and the second lifting screw machine is 448 mm.
Furthermore, the outer diameter of the first lifting screw machine and the second lifting screw machine is phi 360 mm.
Further, the screw heights of the first lifting screw and the second lifting screw are 453 mm.
Furthermore, the support legs of the first lifting screw machine and the second lifting screw machine are indirectly 500 mm.
Further, the oar liquid dewatering machine include oar liquid dewatering machine inlet, oar liquid dewatering machine liquid outlet, oar liquid dewatering machine solid phase export, oar liquid dewatering machine inlet set up in the top of oar liquid dewatering machine, oar liquid dewatering machine liquid outlet set up in the bottom of oar liquid dewatering machine, oar liquid dewatering machine solid phase export be connected with the solid phase conveyer, oar liquid dewatering machine liquid outlet pass through the pipeline and be connected with the waste liquid collecting pit.
The utility model has the following beneficial effects:
(1) the crushing and sorting pulping machine integrates the crushing of the kitchen waste, the separation of impurities and the adjustment of the concentration of the slurry, and has the advantages of high integration degree, complete functions, compact structure and good impurity separation effect.
(2) The slurry dehydrator adopted by the utility model is used for separating the solid phase from the liquid phase of the slurry, and has the advantages of good separation effect, low solid phase moisture content, high automation degree and low energy consumption.
(3) The kitchen waste pretreatment solid-phase material separated by the system is sent to the feeding conveyor through the solid-phase conveyor, and the separated liquid phase automatically flows into the waste liquid collecting pool through the pipeline.
Drawings
Fig. 1 is a schematic structural diagram of a kitchen waste pretreatment system of the present invention.
Fig. 2 is a schematic structural diagram of a kitchen waste bin and a connecting material lifting spiral in the utility model.
In fig. 2: 1-kitchen waste bin; 1-1 is a bin bottom helix; 1-2 is a bin bottom discharge hole; 2-a first lifting screw; 3-second lifting screw.
Fig. 3 is a schematic view of the connection structure of the crusher of the present invention.
In fig. 3: 2-a first lifting screw; 3-a second lifting screw; 3-1 is a discharge hole of a second lifting screw machine; 4-crushing, sorting and pulping machine; 4-1 is the liquid outlet of the crushing and sorting pulping machine.
Fig. 4 is a schematic cross-sectional view of a first lifting screw and a second lifting screw of the present invention.
FIG. 5 is a schematic view showing the connection structure of the slurry dehydrator according to the present invention;
in fig. 5: 5-1 is a liquid inlet of the slurry dewatering machine; 5-2 is a liquid outlet of the slurry dewatering machine; 5-3 is a solid phase outlet of the slurry dehydrator; 6-solid phase conveyor; 7-a waste liquid collecting tank.
Fig. 6 is an application schematic diagram of the kitchen waste pretreatment system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, a kitchen waste pretreatment system comprises a kitchen waste bin 1, a first lifting screw 2, a second lifting screw 3, a crushing, sorting and pulping machine 4, a slurry dehydrator 5, a solid-phase conveyor 6 and a waste liquid collecting tank 7; the kitchen waste bin 1 is connected with a first lifting screw machine 2; the first lifting screw machine 2 is connected with the second lifting screw machine 3; the second lifting screw machine 3 is connected with a crushing, sorting and pulping machine 4; the crushing, sorting and pulping machine 4 is connected with the slurry dehydrator 5; the slurry dehydrator 5 is connected with the solid-phase conveyor 6; the waste liquid collecting tank 7 is connected with the kitchen waste bin 1, the first lifting screw machine 2, the second lifting screw machine 3 and the slurry dehydrator 5.
As shown in fig. 2, the structure of the kitchen waste bin and the connecting material-lifting screw is schematically illustrated. The kitchen waste bin 1 comprises a bin bottom spiral 1-1 and a bin bottom discharge hole 1-2, the bin bottom spiral 1-1 is arranged at the bottom of the kitchen waste bin 1, the bin bottom discharge hole 1-2 is connected with a first lifting spiral machine 2, and the first lifting spiral machine 2 is connected with a second lifting spiral machine 3.
Fig. 3 is a schematic view of the connection structure of the crusher of the present invention. First promotion screw 2 be connected with second promotion screw 3, second promotion screw 3 be provided with second promotion screw discharge gate 3-1, second promotion screw discharge gate 3-1 and broken pulping machine 4 of selecting separately link to each other, broken pulping machine 4 of selecting separately be provided with broken pulping machine liquid outlet 4-1 of selecting separately.
Fig. 4 is a schematic cross-sectional view of a first lift screw and a second lift screw of the present invention. First promotion screw machine, second promotion screw machine's apron width be 548mm, the shell width be 448mm, the spiral external diameter be phi 360mm, the screw machine height be 453mm, the screw machine landing leg indirectly be 500 mm.
FIG. 5 is a schematic view showing the connection structure of the slurry dehydrator according to the present invention. The paddle dehydrator 5 comprises a paddle dehydrator inlet 5-1, a paddle dehydrator liquid outlet 5-2 and a paddle dehydrator solid-phase outlet 5-3, the paddle dehydrator inlet 5-1 is arranged at the top of the paddle dehydrator 5, the paddle dehydrator liquid outlet 5-2 is arranged at the bottom of the paddle dehydrator 5, the paddle dehydrator solid-phase outlet 5-3 is connected with the solid-phase conveyor 6, and the paddle dehydrator liquid outlet 5-2 is connected with the waste liquid collecting tank 7 through a pipeline.
As shown in fig. 6, the application treatment process flow of the kitchen waste pretreatment system of the present invention includes the following steps:
(1) weighing kitchen waste, directly pouring the kitchen waste into a kitchen waste bin, temporarily storing, buffering and filtering water of the material, pushing out the residual material by a screw at the bottom of the kitchen waste bin, and conveying the residual material to a crushing and sorting pulping machine through a first lifting screw machine and a second lifting screw machine in sequence;
carry kitchen garbage's first promotion screw, second promotion screw all adopt shaftless spiral, prevent kitchen garbage's material winding, and first promotion screw, second promotion screw's bottom all sets up waterlogging caused by excessive rainfall waffle slab and delivery port, rolls at kitchen garbage's material transportation process and drips out the profit, eliminates high salinity, grease as far as possible to follow-up fermentation reaction's that goes on in good oxygen fermenting installation adverse effect.
(2) The filter liquor filtered by the screw machine at the bottom of the kitchen waste bin, the first lifting screw machine and the second lifting screw machine automatically flows into the waste liquid collecting tank through the pipeline, and the waste liquid collected by the waste liquid collecting tank is discharged after reaching the standard through the treatment of a sewage treatment plant.
(3) The kitchen waste sent by the first lifting screw machine and the second lifting screw machine is crushed into slurry by a steel hammer rotating at a high speed in a rotary drum of a crushing and sorting pulping machine, the slurry is thrown onto a screen on the inner side of the wall of the rotary drum by utilizing centrifugal force, the slurry smaller than a screen hole enters a slurry collecting box at the lower end, light substances larger than the screen hole and part of other impurities (plastic, fiber and the like) which are not easy to crush are discharged to an impurity outlet and separated out, and the impurities are transported to the outside for burning or landfill;
the crushing, sorting and pulping machine comprises a motor, a cylinder body, an inner cylinder, a screen, a main shaft, a steel hammer, a slurry collecting box, an air compression system, a feeding hole, a slurry outlet, a discharging hole and an impurity outlet; a motor-driven main shaft is arranged in the cylinder, a feed inlet is arranged at the upper part of the cylinder, and an impurity outlet is arranged at the lower part of the tail part of the cylinder; an inner cylinder which has a certain distance with the outer wall of the cylinder body is arranged in the cylinder body, and a screen is arranged at the lower part of the inner cylinder; a slurry outlet is arranged below a cavity between the screen and the outer wall of the cylinder body, slurry enters a slurry collecting box below the cylinder body through the slurry outlet, and the slurry in the slurry collecting box is conveyed to the rear end through an external air compression system; two rows of steel hammers are spirally arranged on a main shaft, each steel hammer has an inclination angle of 8-10 degrees relative to a vertical plane of the main shaft, a layer of screen with the aperture of 15-25mm is arranged on the inner side of the inner cylinder, the motor drives the main shaft to rotate at high speed to drive the steel hammers, kitchen waste materials fed from a feed inlet (a square flange port with the length multiplied by the width of 560 multiplied by 480 mm) are crushed, the crushed kitchen waste materials are thrown to the screen under the action of centrifugal force, the kitchen waste materials smaller than the screen hole enter a cavity between the inner cylinder and the cylinder through the screen, then enter a slurry collecting box below through a slurry outlet (DN150 round hole), are pumped out by an air compression system through a discharge port (DN150 round hole) and are fed into a slurry dehydrator; the steel hammer has certain inclination, and rotatory in-process produces certain thrust, and the kitchen garbage material propelling movement that will be unable broken impurity and be greater than the screen hole is discharged to the impurity export (long wide is 200X 400 mm's square mouth), and the aperture of pan feeding mouth section screen cloth is 25mm, becomes 15mm, hole distance 15mm evenly distributed along kitchen garbage material direction of delivery gradually. The material of the part in contact with the kitchen waste material is stainless steel;
the crushing, sorting and pulping machine can simultaneously realize material crushing, pulping and light substance impurity separation of the kitchen waste, the integration degree of the equipment is high, the material crushing of the kitchen waste is uniform, and more than 90% of the kitchen waste materials are crushed into particles with the particle size of 15-25 mm.
(4) The light impurities separated by the crushing, separating and pulping machine enter the impurity collecting box.
(5) Slurry after the slurry is crushed in the slurry collecting box is pumped into a slurry dehydrator at the rear end through an air compression system of the crushing and sorting pulping machine for dehydration and separation; sending the separated kitchen waste pretreatment solid-phase material into a feeding conveyor through a solid-phase conveyor; the separated liquid phase automatically flows into a waste liquid collecting tank through a pipeline, and waste liquid collected by the waste liquid collecting tank is treated by a sewage treatment plant and is discharged after reaching the standard;
the main machine structure of the slurry dehydrator is a screen filtering type centrifuge, and the slurry dehydrator has the functions of centrifugal concentration and dehydration. The rotating speed of the cylindrical spiral is 1500r/min and can be steplessly adjusted, the outer diameter is 298mm, the effective length is 900mm, the inner diameter of the screen mesh is phi 300mm, the filtering gap of the screen cylinder is 1mm, the screen cylinder and the spiral are 304 stainless steel, and the solid content of the treated solid is more than or equal to 20 percent. The feed inlet is a DN80 round hole, the solid discharge outlet is a long opening with the length multiplied by the width multiplied by 110 multiplied by 250mm, and the liquid outlet is a DN150 round hole.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Claims (10)
1. A kitchen waste pretreatment system is characterized by comprising a kitchen waste bin, a first lifting screw machine, a second lifting screw machine, a crushing, sorting and pulping machine, a slurry dehydrator, a solid-phase conveyor and a waste liquid collecting pool; the kitchen waste bin is connected with the first lifting screw machine; the first lifting screw machine is connected with the second lifting screw machine; the second lifting screw machine is connected with the crushing, sorting and pulping machine; the crushing and sorting pulping machine is connected with the slurry dehydrator; the slurry dehydrator is connected with the solid-phase conveyor; the waste liquid collecting tank is connected with the kitchen waste bin, the first lifting screw machine, the second lifting screw machine and the slurry dehydrator.
2. The kitchen waste pretreatment system according to claim 1, wherein the kitchen waste bin comprises a bin bottom spiral and a bin bottom discharge hole, the bin bottom spiral is arranged at the bottom of the kitchen waste bin, and the bin bottom discharge hole is connected with the first lifting screw machine.
3. The kitchen waste pretreatment system according to claim 1, wherein the second lifting screw is provided with a second lifting screw discharge port, and the second lifting screw discharge port is connected with the crushing and sorting pulper.
4. The kitchen waste pretreatment system according to claim 3, wherein said crushing and sorting pulper is provided with a crushing and sorting pulper liquid outlet.
5. The kitchen waste pretreatment system according to claim 1, wherein the widths of the cover plates of the first lifting screw and the second lifting screw are 548 mm.
6. The kitchen waste pretreatment system according to claim 5, wherein the housing width of the first lifting screw and the second lifting screw is 448 mm.
7. The kitchen waste pretreatment system according to claim 6, wherein the first lifting screw and the second lifting screw have screw outer diameters of phi 360 mm.
8. The kitchen waste pretreatment system according to claim 7, wherein the screw heights of the first lifting screw and the second lifting screw are 453 mm.
9. The kitchen waste pretreatment system according to claim 8, wherein the screw legs of the first lifting screw and the second lifting screw are indirectly 500 mm.
10. The kitchen waste pretreatment system of claim 1, wherein the slurry dehydrator comprises a slurry dehydrator inlet, a slurry dehydrator outlet and a slurry dehydrator solid phase outlet, the slurry dehydrator inlet is arranged at the top of the slurry dehydrator, the slurry dehydrator outlet is arranged at the bottom of the slurry dehydrator, the slurry dehydrator solid phase outlet is connected with the solid phase conveyor, and the slurry dehydrator outlet is connected with the waste liquid collecting tank through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927811.8U CN215941037U (en) | 2021-08-17 | 2021-08-17 | Kitchen waste pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927811.8U CN215941037U (en) | 2021-08-17 | 2021-08-17 | Kitchen waste pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215941037U true CN215941037U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121927811.8U Active CN215941037U (en) | 2021-08-17 | 2021-08-17 | Kitchen waste pretreatment system |
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| Country | Link |
|---|---|
| CN (1) | CN215941037U (en) |
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2021
- 2021-08-17 CN CN202121927811.8U patent/CN215941037U/en active Active
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