Subcritical system for waste treatment
By adopting a combination of subcritical boilers, sub-cylinders and reactors in the waste treatment system, the problem that existing systems cannot handle multiple wastes at the same time is solved, efficient treatment of multiple wastes and resource reuse is achieved, and treatment costs are reduced.
Patent Information
- Application Number
- CN202421507289.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing treatment systems cannot apply to multiple waste treatment processes at the same time, resulting in higher waste treatment costs.
A system including a subcritical boiler, a sub-cylinder and a reactor is adopted to generate sub-critical water vapor by heating water to high temperature and high pressure in a sub-critical boiler, and then repressure through a sub-cylinder, and finally react with waste in the reactor to convert it into reusable substances such as solid carbon and organic waste.
The system can be used for the treatment of a variety of waste without replacing equipment, reducing treatment costs and converting waste into reusable solid carbon and organic fertilizers.
Smart Images
Figure CN222830321U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of waste treatment, and in particular relates to a subcritical system for waste treatment. Background Art
[0002] Waste includes feces, sludge, waste liquid, fly ash, etc. When treating waste, different treatment methods are required for different types of waste. For example, sludge needs to be treated harmlessly through processes such as concentration, conditioning, dehydration, stabilization, drying, and incineration. Feces can be treated using different methods such as anaerobic fermentation, aerobic treatment, and chemical methods.
[0003] The existing treatment system cannot be applied to the treatment process of multiple wastes at the same time, resulting in high waste treatment costs. Utility Model Content
[0004] The embodiment of the utility model provides a subcritical system for waste treatment, aiming to solve the technical problem that the existing treatment system cannot be applied to the treatment process of multiple wastes at the same time, resulting in high waste treatment costs.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a subcritical system for waste treatment, comprising:
[0006] A subcritical boiler having a water inlet pipe and an air outlet pipe, wherein the subcritical boiler is used to generate subcritical steam from water at high temperature and high pressure and pass the steam out through the air outlet pipe;
[0007] A steam sub-cylinder is connected to the gas outlet pipe, and the steam sub-cylinder is used to supplement the pressure of the subcritical water vapor;
[0008] The reactor comprises a tank body connected to the steam cylinder, a rotor rotatably connected to the tank body, and a motor for driving the rotor to rotate. The tank body is also provided with a feed pipe and a discharge pipe. The feed pipe is used to introduce waste, and the discharge pipe is used to discharge reactants.
[0009] In a possible implementation, the subcritical boiler is provided with a controller, and the controller is used to automatically adjust the temperature and pressure of the subcritical boiler.
[0010] In a possible implementation, a spiral coil is provided inside the subcritical boiler, and two ends of the spiral coil are respectively connected to the water inlet pipe and the air outlet pipe.
[0011] In a possible implementation, the subcritical system for waste treatment further includes:
[0012] a water tank, connected to the water inlet pipe;
[0013] A water pump is arranged on the water inlet pipe.
[0014] In a possible implementation, the outer periphery of the tank body is provided with two upper and lower docking parts, each of which is provided with a switch valve, the docking part located at the top is connected to the feed pipe, and the docking part located at the bottom is connected to the discharge pipe.
[0015] In a possible implementation, the tank body is a cylindrical tank with an axial direction parallel to the horizontal direction, the motor is spaced apart and located on one side of the tank body, and one end of the rotor extends out of the tank body and is drivingly connected to the output shaft of the motor.
[0016] In a possible implementation, the reactor further includes a support frame, the support frame is provided with a through hole for the discharge pipe to extend out, and the top of the support frame is provided with a support plate for supporting the tank body, and the support plate is in contact with the outer circumferential surface of the tank body.
[0017] In a possible implementation, two bearing frames are further provided on the support frame, and the two bearing frames are respectively located at two ends of the tank body, and the two ends of the rotor are respectively matched with the two bearing frames.
[0018] In a possible implementation, a reinforcing rib is further provided between the support plate and the support frame.
[0019] In a possible implementation, the subcritical system for waste treatment further includes:
[0020] A buffer tank is connected to the discharge pipe.
[0021] The scheme shown in the embodiment of the present application, compared with the prior art, before treating the waste, water is first passed into a subcritical boiler, and the subcritical boiler converts water into subcritical water vapor at a certain temperature and pressure (e.g., 374°C, 22.1MPa), and then the subcritical water vapor passes through a sub-cylinder, which is mainly used as an intermediate transition to ensure that the pressure of the water vapor is constant, and the water vapor can be pressurized within a certain time interval, and then the water vapor enters the reactor, and the waste to be treated is passed into the reactor, and the reaction process is promoted as the rotor rotates during the reaction, and the waste is finally converted into reactants, and the reactants include solid carbon, organic waste and other substances. The subcritical system for waste treatment of the utility model can be applied to the treatment of a variety of wastes, without the need to replace equipment, and reduce the cost of waste treatment; and the treatment process can convert waste into reusable substances such as solid carbon and organic waste, for example, solid carbon can be used as a clean energy for combustion, and organic fertilizer contains a variety of elements for planting to increase yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the main structure of a subcritical system for waste treatment provided by an embodiment of the utility model;
[0023] Figure 2 A schematic diagram of the three-dimensional structure of a subcritical system for waste treatment provided by an embodiment of the utility model;
[0024] Figure 3 A simplified diagram of the coil used in an embodiment of the present invention.
[0025] Description of reference numerals:
[0026] 10-subcritical boiler; 11-water inlet pipe; 12-gas outlet pipe; 13-controller; 14-coil;
[0027] 20- cylinders;
[0028] 30-reactor; 31-tank; 32-rotor; 33-motor; 34-joining part; 35-switching valve; 36-feeding pipe; 37-discharging pipe;
[0029] 40-water tank; 41-water pump;
[0030] 50-support frame; 51-support plate; 52-reinforcement rib plate; 53-bearing frame;
[0031] 60-Cache jar. DETAILED DESCRIPTION
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0033] In the claims, specification and the above drawings of the utility model, the terms "upper", "lower", "top" and "bottom" are used in conjunction with Figure 1 The upper and lower directions shown are the same, and other directional words, unless otherwise explicitly defined, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the specific protection scope of the utility model.
[0034] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.
[0035] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".
[0036] Please also read Figures 1 to 3 , the subcritical system for waste treatment provided by the utility model is now described. The subcritical system for waste treatment includes a subcritical boiler 10, a steam cylinder 20 and a reactor 30. The subcritical boiler 10 has a water inlet pipe 11 and an air outlet pipe 12. The subcritical boiler 10 is used to generate subcritical water vapor from water under high temperature and high pressure and pass it out through the air outlet pipe 12; the steam cylinder 20 is connected to the air outlet pipe 12, and the steam cylinder 20 is used to supplement the pressure of the subcritical water vapor; the reactor 30 includes a tank body 31 connected to the steam cylinder 20, a rotor 32 rotatably connected to the tank body 31, and a motor 33 for driving the rotor 32 to rotate. The tank body 31 is also provided with a feed pipe 36 and a discharge pipe 37. The feed pipe 36 is used to pass waste, and the discharge pipe 37 is used to flow out reactants.
[0037] Compared with the prior art, the subcritical system for waste treatment provided in this embodiment is that before treating the waste, water is first introduced into the subcritical boiler 10, and the subcritical boiler 10 converts the water into subcritical water vapor at a certain temperature and pressure (e.g., 374°C, 22.1MPa), and then the subcritical water vapor passes through the sub-cylinder 20, which is mainly used as an intermediate transition to ensure that the pressure of the water vapor is constant, and the water vapor can be pressurized within a certain time interval, and then the water vapor enters the reactor 30, and the waste to be treated is introduced into the reactor 30, and the reaction process is promoted as the rotor 32 rotates during the reaction, and finally the waste is converted into reactants, and the reactants include solid carbon, organic waste and other substances. The subcritical system for waste treatment of the utility model can be applied to the treatment of a variety of wastes, without the need to replace equipment, and the cost of waste treatment is reduced; and the treatment process can convert waste into reusable substances such as solid carbon and organic waste, for example, solid carbon can be used as a clean energy for combustion, and organic fertilizer contains a variety of elements for planting to increase yield.
[0038] In some embodiments, an improved implementation of the above subcritical boiler 10 can be implemented as follows: Figure 1 See the structure shown. Figure 1 The subcritical boiler 10 is provided with a controller 13, which is used to automatically adjust the temperature and pressure of the subcritical boiler 10. Specific temperature values and pressure values can be input into the controller 13 to adjust the operating temperature and pressure of the subcritical boiler 10, and the operator does not need to approach the subcritical boiler 10 for close operation, which has a higher safety factor.
[0039] It is easy to understand that the subcritical boiler 10 is an existing device, and its working principle is no longer described here. The temperature and pressure are controlled by the controller 13, that is, the structure of the temperature and pressure control part on the boiler is adjusted by the controller 13, for example, the water pump 41 is controlled by the controller 13 to achieve pressure regulation.
[0040] In some embodiments, an improved implementation of the above subcritical boiler 10 can be implemented as follows: Figure 3 See the structure shown. Figure 3 The subcritical boiler 10 is provided with a spiral coil 14, and the two ends of the spiral coil 14 are respectively connected to the water inlet pipe 11 and the gas outlet pipe 12. After the water source enters the spiral coil 14 from the water inlet pipe 11, it flows in the spiral coil 14, which can extend the time it stays in the subcritical boiler 10 and ensure that the water source is evenly heated and smoothly converted into subcritical water vapor.
[0041] In some embodiments, an improved implementation of the above-mentioned subcritical system for waste treatment can be implemented as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The subcritical system for waste treatment further includes a water tank 40 and a water pump 41. The water tank 40 is connected to the water inlet pipe 11; the water pump 41 is arranged on the water inlet pipe 11. The water source can be buffered by the water tank 40 to realize a continuous water supply to the subcritical boiler 10. Even in the case of water outage, the normal operation of the subcritical system can be guaranteed because there is water in the water tank 40.
[0042] In some embodiments, an improved embodiment of the tank 31 can be as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The outer periphery of the tank body 31 is provided with two upper and lower docking parts 34, each docking part 34 is provided with a switch valve 35, the docking part 34 at the top is connected with the feed pipe 36, and the docking part 34 at the bottom is connected with the discharge pipe 37. The upper docking part 34 is connected with the feed pipe 36 for introducing waste into the tank body 31. By controlling the switch valve 35 on the docking part 34, the weight of the waste entering the tank body 31 can be controlled, so as to be in a preset ratio with the introduced subcritical steam, thereby ensuring the waste treatment efficiency; the lower docking part 34 is connected with the discharge pipe 37, which can facilitate the outflow of reactants and is simple to operate.
[0043] In some embodiments, an improved embodiment of the tank 31 can be as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2The tank body 31 is a cylindrical tank with an axial direction parallel to the horizontal direction, the motor 33 is spaced apart and located on one side of the tank body 31, and one end of the rotor 32 extends out of the tank body 31 and is drivingly connected to the output shaft of the motor 33. The tank body 31 is circular and placed horizontally, so there is no dead angle in the process of waste treatment, which can ensure the waste treatment efficiency, and the horizontal method can improve the stirring uniformity during the rotation process of the rotor 32.
[0044] Specifically, the output shaft of the motor 33 and the extended end of the rotor 32 can be connected by gear meshing or belt transmission.
[0045] In some embodiments, an improved embodiment of the above-mentioned reactor 30 can be adopted as follows Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The reactor 30 further includes a support frame 50, which is provided with a through hole for the discharge pipe 37 to extend out, and a support plate 51 for supporting the tank body 31 is provided on the top of the support frame 50, and the support plate 51 fits the outer circumference of the tank body 31. The support frame 50 can raise the tank body 31, so as to provide space for the discharge pipe 37 at the bottom of the tank body 31 to facilitate discharge, and the support plate 51 fits the outer circumference of the tank body 31, so as to improve the installation stability of the tank body 31 and prevent the tank body 31 from shaking when the internal rotor 32 rotates.
[0046] In some embodiments, an improved implementation of the support frame 50 can be as follows: Figure 2 See the structure shown. Figure 2 The support frame 50 is also provided with two bearing frames 53, which are respectively located at the two ends of the tank body 31, and the two ends of the rotor 32 are respectively matched with the bearing frames 53. Each bearing frame 53 is provided with a bearing, and the two ends of the rotor 32 are respectively connected to the inner rings of the bearings on the two bearing frames 53. This structure can ensure the axial level of the rotor 32, reduce the friction resistance of the rotor 32 during the rotation process, and improve the stability of the rotor 32 during the rotation process.
[0047] It should be noted that although both ends of the rotor 32 extend out of the tank body 31 , corresponding sealing devices are provided at the ends of the rotor 32 and the tank body 31 , so that air leakage will not occur due to the extension of the rotor 32 .
[0048] In some embodiments, an improved implementation of the above-mentioned support plate 51 can be adopted as follows Figure 2 See the structure shown. Figure 2A reinforcing rib 52 is also provided between the support plate 51 and the support frame 50. Since the tank body 31 is a cylindrical tank, the support plate 51 needs to fit the outer circumference of the tank body 31, so the support plate 51 is an arc-shaped plate adapted to the outer circumference of the tank body 31. The arc-shaped plate may be deformed when supported on the outer circumference of the tank body 31. By providing the reinforcing rib 52, the support plate 51 can be supported, the service life of the support plate 51 can be extended, and deformation can be avoided during use.
[0049] In some embodiments, an improved implementation of the above-mentioned subcritical system for waste treatment can be implemented as follows: Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2 The subcritical system for waste treatment also includes a buffer tank 60, which is connected to the discharge pipe 37. After the waste is treated by the reactor 30, liquid reactants (such as liquid fertilizer) and solid reactants (such as solid carbon) will coexist in the reactants. The discharge pipe 37 passes all the reactants into the buffer tank 60, and the liquid and solid reactants can be separated by standing in the buffer tank 60, so as to facilitate later reuse.
[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A subcritical system for waste treatment, characterized in that: include: A subcritical boiler having a water inlet pipe and an air outlet pipe, wherein the subcritical boiler is used to generate subcritical steam from water at high temperature and high pressure and pass the steam out through the air outlet pipe; A steam sub-cylinder is connected to the gas outlet pipe, and the steam sub-cylinder is used to supplement the pressure of the subcritical water vapor; The reactor comprises a tank body connected to the steam cylinder, a rotor rotatably connected to the tank body, and a motor for driving the rotor to rotate. The tank body is also provided with a feed pipe and a discharge pipe. The feed pipe is used to introduce waste, and the discharge pipe is used to discharge reactants.
2. The subcritical system for waste treatment according to claim 1, characterized in that: The subcritical boiler is provided with a controller, and the controller is used to automatically adjust the temperature and pressure of the subcritical boiler.
3. The subcritical system for waste treatment according to claim 1, characterized in that: A spiral coil is provided inside the subcritical boiler, and two ends of the spiral coil are respectively connected to the water inlet pipe and the air outlet pipe.
4. The subcritical system for waste treatment according to claim 1, characterized in that: The subcritical system for waste treatment also includes: a water tank, connected to the water inlet pipe; A water pump is arranged on the water inlet pipe.
5. The subcritical system for waste treatment according to claim 1, characterized in that: The outer periphery of the tank body is provided with two upper and lower docking parts, each of which is provided with a switch valve, the docking part located at the top is connected with the feed pipe, and the docking part located at the bottom is connected with the discharge pipe.
6. The subcritical system for waste treatment according to claim 1, characterized in that: The tank body is a cylindrical tank with an axial direction parallel to the horizontal direction. The motor is spaced apart and located at one side of the tank body. One end of the rotor extends out of the tank body and is drivingly connected to the output shaft of the motor.
7. The subcritical system for waste treatment according to claim 6, characterized in that: The reactor further comprises a support frame, the support frame is provided with a through hole for the discharge pipe to extend out, the top of the support frame is provided with a support plate for supporting the tank body, and the support plate is in contact with the outer peripheral surface of the tank body.
8. The subcritical system for waste treatment according to claim 7, characterized in that: The support frame is also provided with two bearing frames, which are respectively located at two ends of the tank body, and the two ends of the rotor are respectively matched with the two bearing frames.
9. The subcritical system for waste treatment according to claim 7, characterized in that: A reinforcing rib is also provided between the support plate and the support frame.
10. The subcritical system for waste treatment according to claim 1, characterized in that: The subcritical system for waste treatment also includes: A buffer tank is connected to the discharge pipe.