Excess sludge microwave lysis device

Abstract

The utility model discloses an excess sludge microwave lysis device which comprises a microwave treatment bin, the microwave treatment bin comprises a sludge inlet, a discharge port, an upper cover, a motor, a rotating shaft and a microwave generator, the sludge inlet is arranged on the outer side close to the upper end of the microwave treatment bin, and the discharge port is arranged at the bottom of the microwave treatment bin; the upper cover is in threaded connection with the upper end of the microwave processing bin, the motor is in threaded connection with the surface of the upper cover, the microwave generators are arranged on the bottom face of the upper cover and located on the two sides of the rotating shaft, and the mounting assembly is arranged between the microwave generators and the upper cover. Microbial cells in sludge are subjected to cell dissolving treatment through microwaves, the sludge is recycled and reduced by destroying the microbial cells in the sludge, reducing the moisture content of the sludge, improving the dewatering performance of the sludge and improving the degradation performance of the sludge, and the sludge can be stirred by the rotating shaft and matched with the microwaves, so that the sludge can be recycled and reduced, and the sludge can be recycled. And uniform heating is realized.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the technical field of sludge treatment, and specifically relates to a device for microwave lysis of excess sludge. Background Art

[0002] With the acceleration of China's urbanization process, due to the large amount of excess sludge generated during the sewage treatment process, the problem of excess sludge treatment has become increasingly prominent. A large number of microbial cells are contained in the excess sludge, and traditional treatment methods such as landfill and incineration have problems such as high treatment costs and environmental pollution.

[0003] For example, in a biochemical excess sludge ozone lysis and reduction device with the Chinese patent number CN217972940U, the oxidation effect of traditional ozone mainly occurs on the surface where it contacts substances. Usually, ozone gas is injected into the sludge to make it contact and react with the organic matter and microorganisms in the sludge. This treatment method may not allow ozone to penetrate into every part of the sludge, resulting in incomplete treatment of the sludge. Therefore, a device for microwave lysis of excess sludge is designed to efficiently lyse the microbial cells in the excess sludge through microwave, improving the degradation performance of the sludge. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a device for microwave lysis of excess sludge.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A device for microwave lysis of excess sludge of the utility model includes a microwave treatment chamber, the microwave treatment chamber includes a sludge inlet, a discharge port, an upper cover, a motor, a rotating shaft and a microwave generator. The sludge inlet is arranged on the outer side near the upper end of the microwave treatment chamber, the discharge port is opened at the bottom of the microwave treatment chamber, the upper cover is screwed to the upper end of the microwave treatment chamber, the motor is screwed to the surface of the upper cover, the rotating shaft is arranged at the output end of the motor, below the upper cover, and the microwave generator is arranged on the bottom surface of the upper cover and on both sides of the rotating shaft;

[0007] An installation component is arranged between the microwave generator and the upper cover. The installation component includes a fixing block and a clamping block. The fixing block is arranged at the bottom of the upper cover, and the clamping block is arranged on the upper surface of the microwave generator.

[0008] As a preferred technical solution of the utility model, the output end of the motor is in transmission connection with the rotating shaft. Stirring plates and dispersion plates are arranged on the outer side of the rotating shaft. The stirring plates are located above the dispersion plates, and both the stirring plates and the dispersion plates are clamped to the rotating shaft.

[0009] As a preferred technical solution of the present utility model, a plurality of stirring blades are welded to the outer side of the stirring plate, and a plurality of dispersion holes are formed on the surface of the dispersion plate.

[0010] As a preferred technical solution of the present utility model, the microwave generator is one of a solid-state microwave generator or a microwave oscillator.

[0011] As a preferred technical solution of the present utility model, an installation plate is arranged on the outer side of the fixing block. The fixing block is screwed to the upper cover through the installation plate. A fixing column is arranged between the clamping block and the microwave generator, and the fixing column is fixedly connected to the clamping block and the microwave generator respectively. The side surface of the clamping block is designed in a wavy shape, and a clamping hole adapted to the clamping block is formed in the interior of the fixing block.

[0012] As a preferred technical solution of the present utility model, a conduit is arranged inside the discharge port. The output end of the conduit is communicated with the discharge port. The input end of the conduit is designed in an arc shape, and a plurality of diversion holes are formed on the surface of the conduit.

[0013] As a preferred technical solution of the present utility model, a support frame is arranged on the outer side of the microwave treatment chamber. An installation block is arranged between the outer side of the microwave treatment chamber and the support frame. The installation block is welded to the microwave treatment chamber and screwed to the support frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model performs cell lysis treatment on the microorganisms in the sludge by microwave. By destroying the microorganisms in the sludge, the moisture content of the sludge is reduced, its dehydration performance is improved, the degradation performance of the sludge is improved, and the resource utilization and reduction of the sludge are realized. Moreover, the stirring of the sludge by the rotating shaft and the microwave cooperation can penetrate into the interior of the material to achieve uniform heating, avoiding the problems of overheating on the surface and undercooking inside. It solves the problem that the oxidation of traditional ozone mainly occurs on the surface of its contact with substances, and this treatment method may not make ozone penetrate into each part of the sludge, resulting in incomplete treatment of the sludge.

[0016] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the sectional structure of the present utility model;

[0021] Figure 3 is a schematic diagram of the partial structure of the installation component;

[0022] In the figure: 101, microwave treatment chamber; 102, sludge inlet; 103, discharge port; 104, upper cover; 105, motor; 106, rotating shaft; 107, stirring plate; 108, dispersion plate; 109, microwave generator; 1010, stirring blade; 1011, dispersion hole; 1012, conduit; 1013, mounting block; 200, support frame; 300, installation component; 301, mounting plate; 302, fixing block; 303, clamping block; 304, clamping hole; 305, fixing column. Detailed Description of the Embodiments

[0023] As Figures 1-3 shown, the present utility model provides a device for microwave lysis of excess sludge, including a microwave treatment chamber 101. The microwave treatment chamber 101 includes a sludge inlet 102, a discharge port 103, an upper cover 104, a motor 105, a rotating shaft 106, and a microwave generator 109. The sludge inlet 102 is arranged on the outer side near the upper end of the microwave treatment chamber 101. The discharge port 103 is opened at the bottom of the microwave treatment chamber 101. The upper cover 104 is screwed to the upper end of the microwave treatment chamber 101. The motor 105 is screwed to the surface of the upper cover 104. The rotating shaft 106 is arranged at the output end of the motor 105 and is located below the upper cover 104. The microwave generator 109 is arranged on the bottom surface of the upper cover 104 and is located on both sides of the rotating shaft 106;

[0024] The installation component 300 is arranged between the microwave generator 109 and the upper cover 104. The installation component 300 includes a fixed block 302 and a clamping block 303. The fixed block 302 is arranged at the bottom of the upper cover 104, and the clamping block 303 is arranged on the upper surface of the microwave generator 109.

[0025] Furthermore, in this embodiment, the output end of the motor 105 is in transmission connection with the rotating shaft 106. A stirring plate 107 and a dispersing plate 108 are arranged on the outer side of the rotating shaft 106. The stirring plate 107 is located above the dispersing plate 108. Both the stirring plate 107 and the dispersing plate 108 are clamped with the rotating shaft 106. By controlling the rotation of the rotating shaft 106 through the motor 105, the rotating shaft 106 drives the stirring plate 107 and the dispersing plate 108 to rotate, so as to stir and disperse the sludge in the microwave treatment chamber 101, facilitating the penetration of microwaves into the interior of the sludge.

[0026] In this embodiment, a plurality of stirring blades 1010 are welded on the outer side of the stirring plate 107, and a plurality of dispersing holes 1011 are formed on the surface of the dispersing plate 108. The stirring of the sludge by the stirring plate 107 is realized through the stirring blades 1010 to break up the lumps in the sludge. The bottom of the large pieces of sludge is stuck through the dispersing holes 1011, and the sludge can be effectively dispersed by using the rotational force, increasing the contact area between the solid particles and the treatment media (such as ozone, microwaves, chemical additives, etc.), thereby improving the treatment efficiency.

[0027] In this embodiment, the microwave generator 109 is one of a solid-state microwave generator 109 or a microwave oscillator. The microwave energy is emitted by the microwave generator 109 to perform cell lysis treatment on the sludge.

[0028] In this embodiment, an installation plate 301 is arranged on the outer side of the fixed block 302. The fixed block 302 is screwed to the upper cover 104 through the installation plate 301. A fixed column 305 is arranged between the clamping block 303 and the microwave generator 109. The fixed column 305 is fixedly connected to the clamping block 303 and the microwave generator 109 respectively. The side surface of the clamping block 303 is designed in a wavy shape. A clamping hole 304 adapted to the clamping block 303 is formed inside the fixed block 302. The microwave generator 109 is suspended at the inner top of the microwave treatment chamber 101 by inserting the clamping block 303 into the clamping hole 304 of the fixed block 302. When it needs to be disassembled, the microwave treatment chamber 101 can be directly pulled out, which is convenient for maintaining the microwave treatment chamber 101.

[0029] In this embodiment, a conduit 1012 is arranged inside the discharge port 103. The output end of the conduit 1012 is communicated with the discharge port 103. The input end of the conduit 1012 is designed in an arc shape. A plurality of diversion holes are formed on the surface of the conduit 1012. The treated sludge is discharged from the discharge port 103 through the diversion holes and enters the machine for the next treatment step.

[0030] In this embodiment, a support frame 200 is provided outside the microwave treatment chamber 101. An installation block 1013 is provided between the outside of the microwave treatment chamber 101 and the support frame 200. The installation block 1013 is welded to the microwave treatment chamber 101 and is screwed to the support frame 200 to support the microwave treatment chamber 101 through the support frame 200.

[0031] Specifically, the steps of microwave lysis of excess sludge are as follows: First, the sludge needs to be collected from a sewage treatment plant or other sources and transported to the microwave treatment device. The sludge is introduced into the microwave treatment chamber 101 through the sludge inlet 102. The microwave generator 109 is started, and the microwave generator 109 generates microwave energy. Synchronously, the motor 105 controls the rotating shaft 106 to drive the stirring plate 107 and the dispersion plate 108 to rotate, so as to stir and disperse the sludge in the microwave treatment chamber 101, facilitating the penetration of microwaves into the interior of the sludge. The sludge in the microwave treatment chamber 101 is irradiated by microwaves, and the microwave energy penetrates the sludge, causing the cells in the sludge to be heated and burst, releasing the internal organic matter and water.

[0032] Then, the sludge after microwave lysis passes through the conduit 1012 and enters the solid-liquid separator through the discharge port 103 to separate the solid particles and liquid in the sludge after microwave treatment. The separated solid and liquid can be further processed or utilized for resource according to needs.

[0033] In addition, considering that the state of microwave-treated sludge is unknown, it is necessary to set the microwave treatment time according to the actual situation of the sludge and the working experience of the staff, observe the sludge, and decide whether to carry out subsequent work.

[0034] In addition, during the microwave treatment process, appropriate safety measures need to be taken, including but not limited to microwave shielding, emergency stop buttons, leakage detection systems, etc., to ensure the safety of operators.

[0035] The principle of microwave lysis mainly utilizes the thermal effect and non-thermal effect of microwaves. Microwaves can penetrate the sludge, causing a temperature difference inside and outside the cells, resulting in an imbalance in pressure inside and outside the cells, thereby rupturing the cell membrane. By destroying the microbial cells in the sludge, the bound water is released, thereby reducing the moisture content of the sludge and improving its dewatering performance.

[0036] The microwave treatment chamber 101, sludge inlet 102, discharge port 103, upper cover 104, motor 105, rotating shaft 106, stirring plate 107, dispersion plate 108, microwave generator 109, stirring blades 1010, conduit 1012, mounting block 1013, support frame 200, mounting plate 301, fixing block 302, clamping block 303, fixing column 305, etc. of the present utility model are all common standard parts or parts known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0038] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0039] In the present utility model, unless otherwise clearly specified and defined, the terms "mount", "set", "connect", "fix", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A microwave lysis device for excess sludge, characterized in that It includes a microwave treatment chamber (101), and the microwave treatment chamber (101) includes a sludge inlet (102), a discharge port (103), an upper cover (104), a motor (105), a rotating shaft (106) and a microwave generator (109). The sludge inlet (102) is arranged on the outer side near the upper end of the microwave treatment chamber (101), the discharge port (103) is opened at the bottom of the microwave treatment chamber (101), the upper cover (104) is screwed to the upper end of the microwave treatment chamber (101), the motor (105) is screwed to the surface of the upper cover (104), the rotating shaft (106) is arranged at the output end of the motor (105) and is located below the upper cover (104), and the microwave generator (109) is arranged on the bottom surface of the upper cover (104) and is located on both sides of the rotating shaft (106); An installation component (300), the installation component (300) is arranged between the microwave generator (109) and the upper cover (104), and the installation component (300) includes a fixing block (302) and a clamping block (303). The fixing block (302) is arranged at the bottom of the upper cover (104), and the clamping block (303) is arranged on the upper surface of the microwave generator (109).

2. The residual sludge microwave lysis device according to claim 1, wherein The output end of the motor (105) is in transmission connection with the rotating shaft (106). A stirring plate (107) and a dispersion plate (108) are arranged on the outer side of the rotating shaft (106). The stirring plate (107) is located above the dispersion plate (108), and both the stirring plate (107) and the dispersion plate (108) are clamped to the rotating shaft (106).

3. The lysing device for excess sludge by microwave according to claim 2, wherein A number of stirring blades (1010) are welded on the outer side of the stirring plate (107), and a number of dispersion holes (1011) are opened on the surface of the dispersion plate (108).

4. A device for microwave lysis of excess sludge according to claim 1, characterized in that, The microwave generator (109) is one of a solid-state microwave generator (109) or a microwave oscillator.

5. A device for microwave lysis of excess sludge according to claim 1, characterized in that, An installation plate (301) is arranged on the outer side of the fixing block (302). The fixing block (302) is screwed to the upper cover (104) through the installation plate (301). A fixing column (305) is arranged between the clamping block (303) and the microwave generator (109), and the fixing column (305) is fixedly connected to the clamping block (303) and the microwave generator (109) respectively. The side surface of the clamping block (303) is designed in a wavy shape, and a clamping hole (304) adapted to the clamping block (303) is opened inside the fixing block (302).

6. The residual sludge microwave lysis device according to claim 1, wherein, A conduit (1012) is arranged inside the discharge port (103). The output end of the conduit (1012) is communicated with the discharge port (103). The input end of the conduit (1012) is designed in an arc shape, and a number of diversion holes are opened on the surface of the conduit (1012).

7. A device for microwave lysis of excess sludge according to claim 1, characterized in that, A support frame (200) is provided outside the microwave treatment chamber (101). An installation block (1013) is provided between the outside of the microwave treatment chamber (101) and the support frame (200). The installation block (1013) is welded to the microwave treatment chamber (101) and is screwed to the support frame (200).

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