CN117819639A - Kitchen waste water treatment equipment - Google Patents
Kitchen waste water treatment equipment Download PDFInfo
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- CN117819639A CN117819639A CN202410244479.7A CN202410244479A CN117819639A CN 117819639 A CN117819639 A CN 117819639A CN 202410244479 A CN202410244479 A CN 202410244479A CN 117819639 A CN117819639 A CN 117819639A
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- reaction kettle
- waste water
- driving shaft
- discharging
- pressurizing
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- 239000010806 kitchen waste Substances 0.000 title claims abstract description 23
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 76
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000007790 scraping Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 47
- 238000009283 thermal hydrolysis Methods 0.000 abstract description 43
- 238000000034 method Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 16
- 239000012265 solid product Substances 0.000 description 12
- 239000012263 liquid product Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to the technical field of kitchen waste wastewater treatment, and in particular provides kitchen waste wastewater treatment equipment, which comprises: a reaction kettle, a discharging mechanism and a pressurizing mechanism. In the process of carrying out high-temperature high-pressure thermal hydrolysis on the wastewater, the pressurizing disc in the pressurizing mechanism continuously moves downwards in the vacuum state in the reaction kettle, so that the volume in the reaction kettle is reduced, the pressure is increased, the wastewater is pressurized for the second time while the high-temperature high-pressure environment is utilized to carry out high-temperature pressurization, the thermal hydrolysis reaction rate is greatly improved, gas can be further pressurized in the thermal hydrolysis reaction, the treatment efficiency of the wastewater is greatly improved, the pressurizing mechanism and the exhaust ring groove can separate the gas generated after the thermal hydrolysis, the liquid generated after the thermal hydrolysis is further separated from the fixed product by the discharging mechanism, the thermal hydrolysis efficiency of the wastewater is improved, the separation effect of the gas, the liquid and the fixed product after the thermal hydrolysis is also improved, and the dual-purpose effect is achieved.
Description
Technical Field
The invention relates to the technical field of kitchen waste water treatment, and particularly provides kitchen waste water treatment equipment.
Background
The kitchen waste is wet waste in urban waste classification, accounts for 50% -60% of the urban waste, and is mainly a mixture of unprocessed foods such as pericarps, vegetables, fish, meat, bones and the like; kitchen waste is crushed and filtered to generate a large amount of sewage, the sewage contains food residues, grease, chips, organic matters and the like, solid matters such as the food residues, the chips and the like are generally removed through filtering equipment, the grease is separated through oil-water separation equipment, so that pollution of the grease to a sewer and the environment is reduced, finally, the organic matters in the sewage are treated, the most common high-temperature and high-pressure thermal hydrolysis technology is adopted for treating the organic matters at present, under the condition of high temperature and high pressure, the organic matters (such as fat, protein, carbohydrate and the like) in kitchen waste water are subjected to thermal hydrolysis reaction to generate gas, liquid and solid products, and the gas, liquid and solid products generated by thermal hydrolysis are further separated and treated.
The high-temperature high-pressure thermal hydrolysis technology has the following advantages: 1. in the thermal hydrolysis process, the generated heat can be used for power generation or other purposes, so that energy recovery and utilization are realized, and the comprehensive utilization efficiency of resources is improved; 2. through a thermal hydrolysis technology, kitchen waste can be converted into organic substances which are easy to degrade, so that dependence on a traditional landfill site is reduced, the quantity of waste is reduced, and environmental protection is facilitated; 3. compared with the traditional anaerobic digestion process, the thermal hydrolysis technology does not generate a large amount of malodorous gas, and the influence on the quality of the ambient air is reduced; 4. the thermal hydrolysis technology can reduce the requirement for chemical additives in the treatment process, reduce the concentration of chemical substances in the wastewater, and is beneficial to the subsequent treatment of the wastewater. The advantages enable the high-temperature high-pressure thermal hydrolysis technology to be the sewage treatment method which is most widely applied in kitchen waste water at present.
However, in the process of kitchen waste and wastewater thermal hydrolysis treatment, the wastewater is pressurized by the pressure generated during heating the wastewater, the magnitude of the pressurized pressure is small, and the wastewater is difficult to rapidly carry out thermal hydrolysis reaction, so that the effect of kitchen waste and wastewater treatment is reduced, and the gas, the liquid and the fixed products generated after thermal hydrolysis are difficult to rapidly separate, and the liquid and the fixed products mixed together need to be separated for the second time by external equipment, so that the treatment efficiency after thermal hydrolysis of the wastewater is reduced.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a kitchen waste water treatment device, so as to solve the above technical problems.
In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions: a kitchen waste wastewater treatment device, comprising: the reaction kettle consists of a top cover barrel and a heating barrel fixedly connected with the bottom of the top cover barrel, the lower end of the heating barrel is arc-shaped, and the heating barrel consists of a heating layer, a shell and a heat preservation layer filled between the heating layer and the shell.
The upper end side wall of the reaction kettle is provided with a liquid inlet and a vacuumizing port, the liquid inlet and the vacuumizing port are symmetrically arranged about the axis of the reaction kettle, the top of the reaction kettle is provided with a hydrolytic gas outlet, and the bottom of the reaction kettle is provided with a discharge outlet.
The discharging outlet is provided with a discharging mechanism, the top cover barrel is rotationally connected with a driving shaft concentric with the top cover barrel, the side wall of the driving shaft is provided with a pressurizing mechanism close to the upper end, and a stirring mechanism close to the lower end.
The pressurizing mechanism comprises a pressurizing disc which is sleeved on the driving shaft and connected with the driving shaft in a threaded fit manner, a limiting groove which is uniformly distributed along the circumferential direction of the pressurizing disc is formed in the top of the pressurizing disc, a movable seat is connected in the limiting groove in a sliding manner, a telescopic rod is hinged between the movable seat and the top of the inner wall of the reaction kettle, an exhaust ring groove is formed in the inner wall of the top cover barrel, and an auxiliary discharging group is arranged at the lower end of the pressurizing disc.
The discharging mechanism comprises a conical plugging cone which is connected in the discharging outlet in a vertically sliding mode and the top of the plugging cone is gradually reduced in diameter, the conical portion at the upper end of the plugging cone is inserted into the reaction kettle, the lower end of the plugging cone plugs the discharging outlet, an annular cylinder is mounted on the lower end face of the plugging cone, filtering holes which are uniformly distributed are formed in the side wall of the annular cylinder, and a discharging driving group which drives the plugging cone to move up and down is arranged on the discharging outlet.
In a possible implementation mode, the material discharging driving group comprises a fixed rod fixedly connected to the middle part of a material discharging outlet, a vertical rod which is axially symmetrically arranged along the fixed rod is fixedly connected to the fixed rod, a spring groove is formed in the lower end of the plugging cone, the vertical rod is inserted into the spring groove and connected with the spring groove through a reset spring, an inclined ejector rod is rotatably connected to the middle part of the fixed rod, the upper end of the ejector rod is inserted into the annular cylinder and used for bearing the plugging cone, a guide groove is formed in one end of the ejector rod, which is located below the fixed rod, a connecting shaft is slidably connected in the guide groove, a pull rod is sleeved on the connecting shaft in a rotating mode, a supporting rod is installed at the top of the pull rod, and the top of the supporting rod is used for bearing the part of the ejector rod, which is located on the upper side of the fixed rod.
In one possible implementation mode, the stirring mechanism comprises scraping rods which are connected to the side wall of the lower end of the driving shaft through a fixing frame and are uniformly distributed along the circumferential direction of the driving shaft, the lower ends of the scraping rods are arc-shaped and are clung to the inner wall of the lower end of the reaction kettle, and stirring rods which are distributed in a staggered manner with the scraping rods are further arranged on the side wall of the lower end of the driving shaft.
In one possible implementation manner, the auxiliary discharging group comprises a pushing column connected to the lower end of the pressurizing disc through a plurality of hanging rods, the pushing column is rotatably sleeved on the driving shaft and axially slides along the driving shaft, and the circumferential side wall of the pushing column is composed of an outer convex arc section and an inclined section from top to bottom.
In one possible implementation mode, two scraping rings which are distributed from top to bottom at equal intervals are arranged on the lower end face of the pressurizing disc through fixing strips, the outer ring faces of the scraping rings are clung to the inner wall of the reaction kettle, and the vertical cross section of the scraping rings is triangular.
In one possible implementation mode, the vertical section of the side wall of the pressurizing plate is splayed with the small-caliber end facing the inner wall of the reaction kettle, and the vertical section of the exhaust ring groove is semicircular.
The above technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:
1. according to the kitchen waste wastewater treatment equipment designed by the invention, in the process of carrying out high-temperature high-pressure thermal hydrolysis on wastewater, the pressurizing plate in the pressurizing mechanism continuously moves downwards in a vacuum state in the reaction kettle, so that the volume in the reaction kettle is reduced, the pressure is increased, the wastewater is pressurized at high temperature by heating and pressurizing, the thermal hydrolysis reaction rate is greatly improved in a high-temperature high-pressure environment, gas is further pressurized in the thermal hydrolysis reaction, the thermal hydrolysis rate is further improved, the treatment efficiency of the wastewater is greatly improved, the pressurizing mechanism and the exhaust ring groove can separate the gas generated after thermal hydrolysis, the liquid generated after thermal hydrolysis and the fixed product are further separated by the discharge mechanism, the thermal hydrolysis efficiency of the wastewater is improved, the separation effect of the gas, the liquid and the fixed product after thermal hydrolysis is also improved, and the dual-purpose effect is achieved.
2. The driving shaft rotates to drive the scraping rod to scrape the fixed product adhered to the inner wall of the reaction kettle, so that the fixed product is prevented from adhering to the inner wall of the reaction kettle, and the problems of heat transfer effect between the waste water and the heating layer and waste water thermal decomposition efficiency are reduced.
3. According to the invention, when the discharge mechanism opens the discharge outlet to discharge the liquid and solid products after thermal hydrolysis, the pressurizing disc continuously moves downwards, so that the pushing column is driven to move downwards, the pushing column pushes the liquid and solid products in the reaction kettle to discharge downwards, the function of assisting in discharging is achieved, and the discharge speed of the liquid and solid products is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic overall perspective view of the present invention.
Fig. 2 is a schematic perspective view of the pressurizing mechanism and the stirring mechanism of the present invention.
Fig. 3 is a top view of fig. 1 of the present invention.
Fig. 4 is a cross-sectional view taken along A-A in fig. 3 in accordance with the present invention.
Fig. 5 is an enlarged view of the invention at B in fig. 4.
FIG. 6 is a left cross-sectional partial view of the discharge mechanism of the present invention.
Reference numerals:
1. a reaction kettle; 10. a top cover barrel; 11. heating the barrel; 110. a heating layer; 111. a housing; 112. a heat preservation layer; 12. a liquid inlet; 13. a vacuum pumping port; 14. a hydrolysis gas outlet; 15. a discharge outlet; 2. a discharging mechanism; 20. plugging the cone; 21. an annular cylinder; 22. a filter hole; 23. a discharge driving group; 230. a fixed rod; 231. a vertical rod; 232. a return spring; 233. a push rod; 234. a guide groove; 235. a connecting shaft; 236. a pull rod; 237. a support rod; 3. a drive shaft; 4. a pressurizing mechanism; 40. pressurizing the disc; 41. a limit groove; 42. a movable seat; 43. a telescopic rod; 44. an exhaust ring groove; 45. an auxiliary discharging group; 450. pushing the material column; 460. a scraping ring; 5. a stirring mechanism; 50. a scraping rod; 51. stirring rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 4, a kitchen waste water treatment apparatus includes: the reaction kettle 1, the reaction kettle 1 is composed of a top cover barrel 10 and a heating barrel 11 fixedly connected with the bottom of the top cover barrel 10, the lower end of the heating barrel 11 is arc-shaped, and the heating barrel 11 is composed of a heating layer 110, a shell 111 and a heat preservation layer 112 filled between the heating layer 110 and the shell 111.
Referring to fig. 1 and 3, a liquid inlet 12 and a vacuum-pumping port 13 are arranged on the side wall of the upper end of a reaction kettle 1, the liquid inlet 12 and the vacuum-pumping port 13 are symmetrically arranged about the axis of the reaction kettle 1, a hydrolytic gas outlet 14 is arranged at the top of the reaction kettle 1, and a discharge outlet 15 is arranged at the bottom of the reaction kettle 1.
Referring to fig. 1, 4 and 5, the discharge outlet 15 is provided with a discharge mechanism 2, the top cover barrel 10 is rotatably connected with a driving shaft 3 concentric with the discharge mechanism, a pressurizing mechanism 4 is arranged on the side wall of the driving shaft 3 near the upper end, and a stirring mechanism 5 is arranged near the lower end.
Referring to fig. 2 and 4, the pressurizing mechanism 4 includes a pressurizing disc 40 sleeved on the driving shaft 3 and connected with the driving shaft 3 in a threaded fit manner, a limiting groove 41 uniformly distributed along the circumferential direction of the pressurizing disc 40 is provided at the top of the pressurizing disc 40, a movable seat 42 is slidably connected in the limiting groove 41, a telescopic rod 43 is hinged between the movable seat 42 and the top of the inner wall of the reaction kettle 1, an exhaust ring groove 44 is provided on the inner wall of the top cover barrel 10, and an auxiliary discharging group 45 is installed at the lower end of the pressurizing disc 40.
The waste water is sent into the reaction kettle 1 from the liquid inlet 12, the hydrolytic gas outlet 14 is blocked by the pressurizing disc 40 at the moment, the liquid inlet 12 is blocked by the existing equipment (such as a valve), then the air in the reaction kettle 1 is pumped out from the vacuumizing port 13 by the existing equipment (such as an air pump), the waste water is heated at high temperature by the reaction kettle 1 through the heating layer 110, the boiling point of the waste water can be reduced when the reaction kettle 1 is in a vacuum state, the waste water can quickly reach the boiling point to boil to generate gas, the waste water is subjected to gas-liquid separation, and the thermal hydrolysis reaction of the waste water is promoted.
And drive the drive shaft 3 through external driving source at the in-process that waste water heated and rotate, drive shaft 3 is through the threaded connection with pressurization dish 40 at the in-process that rotates, and telescopic link 43 is spacing to the rotation of pressurization dish 40, thereby make pressurization dish 40 move down along drive shaft 3 axis, the in-process that pressurization dish 40 moved down reduces the volume in the reation kettle 1 gradually, thereby increased pressure, carry out the secondary pressurization to waste water when utilizing the heating to carry out high temperature pressurization, high temperature high pressure environment has improved the pyrohydrolysis reaction rate by a wide margin, the pyrohydrolysis reaction also can produce gaseous further pressurization, further improved the pyrohydrolysis speed, also improved the treatment effeciency of waste water.
When the thermal hydrolysis is completed, the pressurizing plate 40 continues to move downwards until being aligned with the exhaust ring groove 44, gas generated by thermal decomposition moves to the upper side of the pressurizing plate 40 from the exhaust ring groove 44 and is discharged from the hydrolysis gas outlet 14, then the discharging outlet 15 is opened through the discharging mechanism 2, liquid generated after the thermal hydrolysis is filtered and discharged firstly, then solid products generated after the thermal hydrolysis are discharged, the complicated step of separating the liquid from the fixed products in the later period is avoided, and the discharging mechanism 2 has the effect of one machine.
Referring to fig. 4, the vertical section of the side wall of the pressure plate 40 is in a splayed shape with the small caliber end facing the inner wall of the reaction kettle 1, the vertical section of the exhaust ring groove 44 is in a semicircular shape, so that waste water is prevented from accumulating in the exhaust ring groove 44 when entering the reaction kettle 1, the structure of the side wall of the pressure plate 40 is used for reducing the thickness of the side wall of the pressure plate 40, and when the side wall of the pressure plate 40 is aligned with the exhaust ring groove 44, gas can rapidly move from the exhaust ring groove 44 to the upper side of the pressure plate 40, and is discharged from the hydrolysis gas outlet 14.
Referring to fig. 2 and 4, the stirring mechanism 5 includes a scraping rod 50 connected to a lower side wall of the driving shaft 3 through a fixing frame and uniformly distributed along the circumferential direction of the driving shaft 3, the lower end of the scraping rod 50 is arc-shaped and is tightly attached to an inner wall of the lower end of the reaction kettle 1, and a stirring rod 51 staggered with the scraping rod 50 is further installed on the lower side wall of the driving shaft 3.
In the thermal hydrolysis process, the driving shaft 3 drives the scraping rod 50 and the stirring rod 51 to rotate in the rotating process, so that the wastewater in the reaction kettle 1 is stirred, the wastewater can be uniformly heated, and the thermal hydrolysis efficiency of the wastewater is improved; when discharging is carried out after thermal hydrolysis, the driving shaft 3 rotates to drive the scraping rod 50 to scrape off the fixed product adhered to the inner wall of the reaction kettle 1, so that the fixed product is prevented from adhering to the inner wall of the reaction kettle 1, and the problems of heat transfer effect between the waste water and the heating layer 110 and waste water heating water decomposition efficiency are reduced.
Referring to fig. 5, the discharging mechanism 2 includes a plugging cone 20 slidingly connected in the discharging outlet 15 and having a top portion with a tapered shape gradually decreasing in diameter, the tapered portion at the upper end of the plugging cone 20 is inserted into the reaction kettle 1, the lower end of the plugging cone 20 plugs the discharging outlet 15, the lower end surface of the plugging cone 20 is provided with an annular cylinder 21, the side wall of the annular cylinder 21 is provided with uniformly arranged filtering holes 22, and the discharging outlet 15 is provided with a discharging driving set 23 for driving the plugging cone 20 to move up and down.
The conical structure of the plugging cone 20 can block waste water, the problem that waste water is difficult to be fully heated in the waste water entering the discharge outlet 15 is avoided, solid products are simultaneously avoided being accumulated on the plugging cone 20, after waste water is thermally hydrolyzed, the plugging cone 20 is pushed by the discharge driving group 23 to drive the annular cylinder 21 to move upwards for a certain distance, the annular cylinder 21 enters the reaction kettle 1, at the moment, the movement is stopped, the plugging cone 20 is no longer used for plugging the discharge outlet 15, liquid generated after the waste water is thermally hydrolyzed in the reaction kettle 1 is discharged through the filtering holes 22, the solid-liquid separation function is realized, after the liquid is completely discharged, the plugging cone 20 is pushed again by the discharge driving group 23 to drive the annular cylinder 21 to move upwards, the annular cylinder 21 is separated from the discharge outlet 15, the fixed products in the reaction kettle 1 are discharged from the discharge outlet 15, the effect of opening and closing the discharge outlet 15 is realized, the function of separating the fixed products from the liquid is also realized, the effect of one machine is realized, and the step of solid-liquid separation in later stage is reduced.
Referring to fig. 5 and 6, the discharging driving set 23 includes a fixing rod 230 fixedly connected to the middle of the discharging outlet 15, a vertical rod 231 axially symmetrically arranged along the fixing rod 230 is fixedly connected to the fixing rod 230, a spring slot is formed at the lower end of the plugging cone 20, the vertical rod 231 is inserted into the spring slot and connected to the spring slot through a return spring 232, an inclined push rod 233 is rotatably connected to the middle of the fixing rod 230, the upper end of the push rod 233 is inserted into the annular cylinder 21 and receives the plugging cone 20, a guide slot 234 is formed at one end of the push rod 233 below the fixing rod 230, a connecting shaft 235 is slidably connected to the guide slot 234, a pull rod 236 is rotatably sleeved on the connecting shaft 235, a supporting rod 237 is mounted at the top of the pull rod 236, and the top of the supporting rod 237 is used for receiving the portion of the push rod 233 located on the upper side of the fixing rod 230.
The bottom of reation kettle 1 installs current fender position equipment, still is provided with current screw rod on the reation kettle 1 and is used for locking shutoff awl 20, avoids upwards moving the shutoff awl 20 when thermal hydrolysis, when shutoff awl 20 will discharge outlet 15 shutoff, the lower extreme of ejector pin 233 supports with discharge outlet 15 inner wall tightly, the upper end of ejector pin 233 supports tightly with shutoff awl 20 bottom to carry out steady rest to shutoff awl 20, and bracing piece 237 and pull rod 236 and ejector pin 233 three are triangle-shaped and arrange, have further improved the supporting effect of ejector pin 233 to shutoff awl 20.
When the thermal hydrolysis of the waste water is completed, the pull rod 236 is pulled to move outside the discharge outlet 15, the pull rod 236 drives the connecting shaft 235 to slide along the guide groove 234, the push rod 233 rotates under the pulling action of the pull rod 236, and the top of the push rod 233 rotates to push the plugging cone 20 to move upwards, so that the annular cylinder 21 enters the reaction kettle 1 but is not separated from the discharge outlet 15, and at the moment, the pull rod 236 is limited by the existing gear equipment, and liquid is discharged from the discharge outlet 15; after the liquid is completely discharged, the pull rod 236 continues to drive the push rod 233 to rotate, the plugging cone 20 drives the annular cylinder 21 to move upwards, the annular cylinder 21 is separated from the discharge outlet 15, the discharge outlet 15 is completely opened, and the fixed product in the reaction kettle 1 is discharged from the discharge outlet 15.
Referring to fig. 4, the auxiliary discharging unit 45 includes a pushing column 450 connected to the lower end of the pressing disc 40 through a plurality of suspension rods, the pushing column 450 is rotatably sleeved on the driving shaft 3 and slides along the driving shaft 3 axially, the circumferential side wall of the pushing column 450 is composed of an outer convex arc section and an inclined section from top to bottom, so that the material is prevented from being stacked on the pushing column 450, when the discharging mechanism 2 opens the discharging outlet 15 to discharge the liquid and solid products after the pyrolysis, the pressing disc 40 continues to move downwards, thereby driving the pushing column 450 to move downwards, the pushing column 450 pushes the liquid and solid products in the reaction kettle 1 to discharge downwards, the auxiliary discharging function is achieved, and the discharging speed of the liquid and solid products is further improved.
Referring to fig. 2 and fig. 4, two scraping rings 460 are mounted on the lower end surface of the pressing plate 40 at equal intervals from top to bottom through fixing strips, the outer ring surface of the scraping rings 460 is tightly attached to the inner wall of the reaction kettle 1, the vertical cross section of the scraping rings 460 is triangular, the scraping rings 460 scrape fixed products adhered to the inner wall of the reaction kettle 1 along with the downward movement of the pressing plate 40, the fixed products are prevented from adhering to the inner wall of the reaction kettle 1, the heat transfer effect between the waste water and the heating layer 110 and the problem of waste water heating water separation efficiency are reduced, the scraping rings 460 are matched with the scraping rods 50, the inner wall of the reaction kettle 1 is cleaned comprehensively, and the triangular inner ring surface of the scraping rings 460 is not only convenient for scraping the solid products on the inner wall of the reaction kettle 1, but also the problem of stacking the products on the scraping rings 460 is avoided.
During operation, wastewater is fed into the reaction kettle 1 from the liquid inlet 12, then air in the reaction kettle 1 is pumped out from the vacuumizing port 13 through the existing equipment (such as an air pump), and then the reaction kettle 1 heats the wastewater at high temperature through the heating layer 110, and the wastewater is subjected to a thermal hydrolysis reaction under the high-temperature pressurizing state of the reaction kettle 1, so that the thermal hydrolysis reaction of the wastewater is promoted.
And drive the drive shaft 3 through external driving source at the in-process that waste water heated and rotate, drive shaft 3 is through the threaded connection with pressurization dish 40 at the in-process that rotates, and telescopic link 43 is spacing to the rotation of pressurization dish 40, thereby make pressurization dish 40 move down along drive shaft 3 axis, the in-process that pressurization dish 40 moved down reduces the volume in the reation kettle 1 gradually, thereby increased pressure, carry out the secondary pressurization to waste water when utilizing the heating to carry out high temperature pressurization, high temperature high pressure environment has improved the pyrohydrolysis reaction rate by a wide margin, the pyrohydrolysis reaction also can produce gaseous further pressurization, further improved the pyrohydrolysis speed, also improved the treatment effeciency of waste water.
When the thermal hydrolysis is completed, the pressurizing plate 40 continues to move downwards until being aligned with the exhaust ring groove 44, gas generated by thermal decomposition moves to the upper side of the pressurizing plate 40 from the exhaust ring groove 44 and is discharged from the hydrolysis gas outlet 14, then the discharging outlet 15 is opened through the discharging mechanism 2, liquid generated after the thermal hydrolysis is filtered and discharged firstly, then solid products generated after the thermal hydrolysis are discharged, the complicated step of separating the liquid from the fixed products in the later period is avoided, and the discharging mechanism 2 has the effect of one machine.
In the description of the present invention, it should be understood that the terms "long", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
Claims (6)
1. Kitchen waste water treatment equipment, characterized by, include: the reaction kettle (1), the reaction kettle (1) is composed of a top cover barrel (10) and a heating barrel (11) fixedly connected with the bottom of the top cover barrel (10), the lower end of the heating barrel (11) is arc-shaped, and the heating barrel (11) is composed of a heating layer (110), a shell (111) and an insulating layer (112) filled between the heating layer and the shell;
the side wall of the upper end of the reaction kettle (1) is provided with a liquid inlet (12) and a vacuumizing port (13), the liquid inlet (12) and the vacuumizing port (13) are symmetrically arranged about the axis of the reaction kettle (1), the top of the reaction kettle (1) is provided with a hydrolytic gas outlet (14), and the bottom of the reaction kettle (1) is provided with a discharge outlet (15);
a discharging mechanism (2) is arranged on the discharging outlet (15), a driving shaft (3) concentric with the top cover barrel (10) is rotatably connected to the top cover barrel, a pressurizing mechanism (4) is arranged at the position, close to the upper end, of the side wall of the driving shaft (3), and a stirring mechanism (5) is arranged at the position, close to the lower end;
the pressurizing mechanism (4) comprises a pressurizing disc (40) which is sleeved on the driving shaft (3) and is connected with the driving shaft (3) in a threaded fit mode, limiting grooves (41) which are uniformly distributed along the circumferential direction of the pressurizing disc (40) are formed in the top of the pressurizing disc (40), a movable seat (42) is connected in the limiting grooves (41) in a sliding mode, a telescopic rod (43) is hinged between the movable seat (42) and the top of the inner wall of the reaction kettle (1), an exhaust ring groove (44) is formed in the inner wall of the top cover barrel (10), and an auxiliary discharging group (45) is arranged at the lower end of the pressurizing disc (40);
the discharging mechanism (2) comprises a conical plugging cone (20) which is connected in the discharging outlet (15) in a vertical sliding mode and the top of which is gradually reduced in the diameter direction, the conical part at the upper end of the plugging cone (20) is inserted into the reaction kettle (1), the lower end of the plugging cone plugs the discharging outlet (15), an annular cylinder (21) is arranged on the lower end face of the plugging cone (20), filtering holes (22) which are uniformly distributed are formed in the side wall of the annular cylinder (21), and a discharging driving group (23) which drives the plugging cone (20) to move up and down is arranged on the discharging outlet (15).
2. A kitchen waste water treatment apparatus according to claim 1, characterized in that: the utility model provides a row material drive group (23) including fixed connection dead lever (230) at row material export (15) middle part, dead lever (230) are gone up fixedly connected with along pole setting (231) of its axial symmetry arrangement, the spring groove has been seted up to the lower extreme of shutoff awl (20), pole setting (231) are inserted in the spring groove and are connected through reset spring (232) between the spring groove, the middle part rotation of dead lever (230) is connected with ejector pin (233) of slope, the upper end of ejector pin (233) is inserted in annular section of thick bamboo (21) and is accepted shutoff awl (20), guide slot (234) have been seted up to one end that ejector pin (233) are located dead lever (230) below, sliding connection has connecting axle (235) in guide slot (234), the cover is equipped with pull rod (236) on connecting axle (235), bracing piece (237) are installed at the top of pull rod (236), the top of bracing piece (237) is used for accepting the part that ejector pin (233) are located dead lever (230) upside.
3. A kitchen waste water treatment apparatus according to claim 1, characterized in that: the stirring mechanism (5) comprises scraping rods (50) which are connected to the side wall of the lower end of the driving shaft (3) through a fixing frame and uniformly distributed along the circumferential direction of the driving shaft (3), the lower ends of the scraping rods (50) are arc-shaped and are clung to the inner wall of the lower end of the reaction kettle (1), and stirring rods (51) which are staggered with the scraping rods (50) are further arranged on the side wall of the lower end of the driving shaft (3).
4. A kitchen waste water treatment apparatus according to claim 1, characterized in that: the auxiliary discharging group (45) comprises a pushing column (450) connected to the lower end of the pressurizing disc (40) through a plurality of hanging rods, the pushing column (450) is rotationally sleeved on the driving shaft (3) and axially slides along the driving shaft (3), and the circumferential side wall of the pushing column (450) is composed of an outer convex arc section and an inclined section from top to bottom.
5. A kitchen waste water treatment apparatus according to claim 1, characterized in that: the lower end face of the pressurizing disc (40) is provided with two scraping rings (460) which are distributed from top to bottom at equal intervals through a fixing strip, the outer ring face of each scraping ring (460) is clung to the inner wall of the reaction kettle (1), and the vertical section of each scraping ring (460) is triangular.
6. A kitchen waste water treatment apparatus according to claim 1, characterized in that: the vertical section of the side wall of the pressurizing disc (40) is splayed, the small-caliber end of the splayed vertical section faces the inner wall of the reaction kettle (1), and the vertical section of the exhaust ring groove (44) is semicircular.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410244479.7A CN117819639A (en) | 2024-03-05 | 2024-03-05 | Kitchen waste water treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410244479.7A CN117819639A (en) | 2024-03-05 | 2024-03-05 | Kitchen waste water treatment equipment |
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| CN202410244479.7A Pending CN117819639A (en) | 2024-03-05 | 2024-03-05 | Kitchen waste water treatment equipment |
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