Microbial sludge treatment device with constant temperature effect

Abstract

The utility model discloses a microorganism sludge treatment device with a constant temperature effect, which relates to the technical field of sludge treatment and comprises a heat preservation box body and a water bath inner container, the water bath inner container with sludge stored at the bottom is fixedly embedded between two end faces of the heat preservation box body, and a stirring assembly is mounted in the water bath inner container. A gap is formed between the heat preservation box body and the water bath inner container, the gap is filled with a heat conducting medium, a plurality of electric heating bars used for heating the heat conducting medium are fixedly embedded in the two sides of the heat preservation box body, the heat conducting medium is heated through the electric heating bars, and then heat is conducted to the water bath inner container and the heat conducting bars through the heat conducting medium. The indirect heating mode can keep the temperature of the sludge in the water bath inner container relatively stable, compared with direct sludge heating, the situation that the local temperature is too high or too low is avoided, the situation that the local sludge is caked and even scorched due to the too high temperature is avoided, and stable fermentation conditions can be provided for microbial fermentation.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and in particular to a microbial sludge treatment device with a constant temperature function. Background Technology

[0002] Microbial sludge treatment is a technology that uses the metabolic activities of microorganisms to degrade organic matter in sludge, thereby achieving sludge reduction, stabilization, and harmless treatment. The constant temperature heating technology in sludge treatment is the key to ensuring that microorganisms efficiently degrade organic matter in sludge at a suitable temperature. For example, anaerobic bacteria can survive under a constant temperature of 35°C, and the microorganisms can play their role in converting organic matter into biogas to treat wastewater.

[0003] Chinese Patent Publication No. CN222312953U discloses a microbial fermentation device for sludge treatment, including a base frame on which a fermentation tank for fermenting microorganisms for sludge treatment is mounted, and an electric heating tube for heating is installed on the fermentation tank; a tank cover is mounted on the fermentation tank; a lifting mounting plate is fixedly installed on the fermentation tank; and a purification box for treating fermentation waste gas is fixedly installed on the mounting plate. The purification box contains several filter plates and a germicidal lamp, achieving efficient treatment of sludge and effective treatment of waste gas, significantly reducing environmental pollution and threats to human health.

[0004] The above-mentioned technology directly heats the sludge with electric heating tubes, which not only has a small heating area, but also causes the sludge to become too hot at the bottom, resulting in clumping or even burning, reducing the heat conduction effect and making it difficult to achieve uniform temperature fermentation. Therefore, this utility model discloses a microbial sludge treatment device with constant temperature function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a microbial sludge treatment device with constant temperature function, so as to solve the problem mentioned in the background art that the traditional microbial fermentation equipment directly heats the sludge by electric heating tubes, which not only has a small heating area, but also causes the sludge to become too hot at the bottom, clumping or even burning, reducing the heat conduction effect and making it difficult to ferment at a uniform temperature.

[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: A microbial sludge treatment device with constant temperature function includes an insulated box and a water bath liner. A water bath liner containing sludge at the bottom is fixedly embedded between the two ends of the insulated box. A stirring assembly is installed inside the water bath liner. A gap is formed between the insulated box and the water bath liner, and the gap is filled with a heat-conducting medium. Multiple heating rods for heating the heat-conducting medium are fixedly embedded on both sides of the insulated box, and multiple heat-conducting components for conducting heat from the heat-conducting medium to the sludge are installed on the bottom wall of the water bath liner. The stirring paths of the heat-conducting components and the stirring assembly are staggered.

[0007] As a further embodiment of this utility model, the stirring assembly includes a main shaft that is rotatably embedded between the two end faces of the water bath liner and a servo motor fixed to the outer wall of one end of the water bath liner. The output end of the servo motor is fixedly connected to the main shaft. Multiple connecting rings are equidistantly sleeved on the outer wall of the main shaft. Stirring blades are fixed on both sides of each connecting ring.

[0008] As a further embodiment of this utility model, a heat-conducting component is provided between adjacent connecting rings. The heat-conducting component is composed of multiple heat-conducting rods, all of which are fixed to the bottom wall of the water bath liner.

[0009] As a further embodiment of this utility model, the bottom cross-section of the water bath liner is semi-circular, a discharge pipe is fixed to the bottom end face of the water bath liner, and a solenoid valve is installed on the discharge pipe.

[0010] As a further embodiment of this utility model, an inlet is fixedly embedded on the upper side of the water bath inner tank, and an end cap is connected to the upper flange of the inlet.

[0011] As a further embodiment of this utility model, a support base is fixedly connected to the lower side of the heat preservation box, and multiple positioning holes are provided on the bottom edge of the support base.

[0012] As a further embodiment of this utility model, a drain pipe is fixedly embedded on one side of the bottom end of the heat preservation box, and a pipe cap is threadedly connected to the outside of the drain pipe opening.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model discloses a microbial sludge treatment device with constant temperature function. It heats the heat-conducting medium through an electric heating rod, and then the heat-conducting medium conducts the heat to the water bath inner tank and the heat-conducting rod. This indirect heating method can keep the sludge temperature in the water bath inner tank relatively stable. Compared with direct heating of sludge, it avoids the situation of local temperature being too high or too low, and avoids the situation of local sludge temperature being too high, resulting in clumping or even burning. It can provide stable fermentation conditions for microbial fermentation.

[0015] This invention relates to a microbial sludge treatment device with a constant temperature function. The heat-conducting rods are evenly embedded in the bottom wall of the water bath inner tank and are staggered with the stirring path of the stirring component. When the stirring blades rotate, the sludge is continuously agitated, so that the sludge in each part can fully contact the heat-conducting rods and the water bath inner tank. This can effectively avoid the problem of temperature gradients inside the sludge, i.e., large temperature differences between the inside and outside, and between the upper and lower parts. It can promote the uniform temperature of the sludge inside and outside more quickly and improve the efficiency of microbial sludge treatment. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of a microbial sludge treatment device with a constant temperature function according to the present invention.

[0018] Figure 2 This is a side sectional view of a microbial sludge treatment device with a constant temperature function according to the present invention.

[0019] Figure 3 This utility model provides a microbial sludge treatment device with a constant temperature function. Figure 2 Cross-sectional view of the structure along the AA direction;

[0020] Figure 4 This is a top cross-sectional view of a microbial sludge treatment device with a constant temperature function according to the present invention.

[0021] Figure 5 This is a structural diagram showing the combination of the stirring component and the heat conduction component in a microbial sludge treatment device with constant temperature function according to this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Insulated box body; 2. Water bath inner liner; 3. Stirring assembly; 4. Heat transfer medium; 5. Heating rod; 6. Heat transfer assembly; 11. Support base; 12. Positioning hole; 13. Drain pipe; 14. Pipe cover; 21. Discharge pipe; 22. Solenoid valve; 23. Inlet; 24. End cover; 31. Main shaft; 32. Servo motor; 33. Connecting ring; 34. Stirring blade; 61. Heat transfer rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-5 This utility model provides a microbial sludge treatment device with constant temperature function, including an insulated box 1 and a water bath liner 2. The water bath liner 2, which stores sludge at the bottom, is fixedly embedded between the two ends of the insulated box 1.

[0026] Specifically, the outer casing 1 is usually covered with high-efficiency insulation materials, such as polyurethane foam and rock wool. These materials have good thermal insulation properties. The lower half of the water bath inner liner 2 is built into the insulation casing 1, which can effectively reduce heat transfer and reduce heat loss.

[0027] Furthermore, the bottom cross-section of the water bath liner 2 is semi-circular, and a discharge pipe 21 is fixed to the bottom end face of the water bath liner 2. A solenoid valve 22 is installed on the discharge pipe 21.

[0028] Specifically, the bottom of the water bath inner tank 2 is designed with a semi-circular structure, mainly to facilitate the discharge of sludge. The semi-circular bottom has no dead corners, and when the solenoid valve 22 is opened, the sludge can flow more smoothly to the discharge pipe 21, reducing the residue of sludge at the bottom of the water bath inner tank 2 and improving the discharge efficiency. This bottom structure is conducive to the flow of sludge. Especially under the action of the stirring component 3, the semi-circular structure is slightly larger than the stirring path of the stirring blade 34, so the sludge can be more evenly distributed in the water bath inner tank 2 and can be discharged more thoroughly during discharge. The gradient structure on both sides of the semi-circular structure also helps to reduce the accumulation of sludge at the bottom and avoid problems such as uneven fermentation or excessively high local temperature caused by sludge accumulation.

[0029] Furthermore, an inlet 23 is fixedly embedded on the upper side of the water bath inner tank 2, and an end cap 24 is connected to the upper flange of the inlet 23.

[0030] Specifically, the inlet 23 is fixedly embedded on the upper side of the water bath inner tank 2. Its main function is to provide a channel for introducing sludge into the water bath inner tank 2. The end cap 24 is connected to the upper side of the inlet 23 through a flange. Its main function is to seal the inlet and prevent gas leakage during the sludge treatment process. The water bath inner tank 2 can be connected to an external gas pipeline, which can discharge the gas generated by fermentation in a timely manner.

[0031] Furthermore, a support base 11 is fixedly connected to the lower side of the heat preservation box 1, and a plurality of positioning holes 12 are provided on the bottom edge of the support base 11.

[0032] Specifically, the function of the support base 11 is to provide stable support for the entire device, ensuring that the device can be placed stably on the ground or other support platforms during operation, preventing tilting or shaking caused by uneven ground or the weight of the device itself, and ensuring the normal operation of the device. The positioning hole 12 can be used to flexibly install the device in different positions according to actual needs.

[0033] Furthermore, a stirring assembly 3 is installed inside the water bath liner 2. The stirring assembly 3 includes a main shaft 31 that is rotatably embedded between the two end faces of the water bath liner 2 and a servo motor 32 that is fixed to the outer wall of one end of the water bath liner 2. The output end of the servo motor 32 is fixedly connected to the main shaft 31. Multiple connecting rings 33 are equidistantly sleeved on the outer wall of the main shaft 31. Stirring blades 34 are fixed on both sides of the connecting rings 33.

[0034] Specifically, after the servo motor 32 is powered on, its output drives the main shaft 31 to rotate. The rotation of the main shaft 31 is transmitted to the stirring blade 34 through the connecting ring 33, causing the stirring blade 34 to rotate inside the water bath liner 2. During the rotation, the stirring blade 34 continuously agitates and mixes the sludge, ensuring that all parts of the sludge can contact the water bath liner 2 and the heat-conducting rod 61 evenly, promoting uniform heat transfer, avoiding temperature gradients inside the sludge, promoting the metabolic activities of microorganisms, and improving the efficiency and effectiveness of sludge treatment.

[0035] Furthermore, a gap is formed between the heat preservation box 1 and the water bath inner liner 2, and the gap is filled with a heat-conducting medium 4. A drain pipe 13 is fixedly embedded on one side of the bottom end of the heat preservation box 1, and a pipe cap 14 is threadedly connected to the outside of the drain pipe 13.

[0036] Specifically, the liquid inside the insulation box 1 can be water or heat transfer oil. By tightening or loosening the pipe cap 14, the drain pipe 13 can be sealed or opened, thereby facilitating the discharge or retention of the liquid.

[0037] Furthermore, multiple heating rods 5 for heating the heat-conducting medium 4 are fixedly embedded on both sides of the heat-insulating box 1;

[0038] Specifically, the even distribution of multiple heating rods 5 improves heating efficiency, reduces local overheating or underheating, and ensures uniform temperature distribution of the heat transfer medium 4. This provides a stable heat source for the sludge inside the water bath liner 2. The indirect heating method provides stable fermentation conditions for microbial fermentation, avoiding uneven fermentation or failure caused by excessively high or low local temperatures. This improves the effectiveness and stability of sludge treatment, avoids the thermal shock to the sludge from direct heating, reduces the risk of sludge clumping and scorching, lowers equipment maintenance frequency and costs, and extends equipment lifespan. It is worth noting that the heating rods 5 have built-in heating wires; when the heating wires are energized, they generate… The insulation chamber 1 is equipped with one or more temperature sensors on its inner wall. These sensors collect temperature data of the heat-conducting medium 4 and upload it to a control terminal, such as a PLC controller. The control terminal controls the energization of the heating wire based on whether a single temperature data point or the average temperature data point exceeds a preset temperature range. When a single temperature data point or the average temperature data point exceeds the preset temperature range, the heating wire is de-energized, and the heat-conducting medium 4 cools down slowly. When a single temperature data point or the average temperature data point is lower than the preset temperature range, the heating wire is energized to heat the medium, thus maintaining the temperature of the heat-conducting medium 4 within the insulation chamber 1 always within the preset temperature range.

[0039] Furthermore, multiple heat-conducting components 6 for conducting heat from the heat-conducting medium 4 to the sludge are installed on the bottom wall of the water bath liner 2. The heat-conducting components 6 and the stirring components 3 are staggered in their stirring paths. Heat-conducting components 6 are provided between adjacent connecting rings 33. Each heat-conducting component 6 is composed of multiple heat-conducting rods 61, and all heat-conducting rods 61 are fixed on the bottom wall of the water bath liner 2.

[0040] Specifically, the heat-conducting component 6 is located between adjacent connecting rings 33, which means that the heat-conducting component 6 is evenly distributed in the space inside the water bath liner 2. The stirring paths of the heat-conducting component 6 and the stirring component 3 are staggered, so that the heat-conducting component 6 can have more contact with the sludge during the stirring process. When the stirring blade 34 rotates, the sludge is constantly turned over, so that all parts of the sludge can fully contact the heat-conducting rod 61 and the inner wall of the water bath liner 2, promote the uniform transfer of heat, and avoid the problem of temperature gradient inside the sludge, that is, the large temperature difference between the inside and outside, and between the upper and lower parts.

[0041] Working principle: When in use, the heating rod 5 is energized and heats up, which can raise the temperature of the heat transfer medium 4. The heat transfer medium 4 conducts heat to the water bath liner 2 and the heat transfer rod 61, which can heat the sludge inside and out. At the same time, the servo motor 32 is started, which drives the main shaft 31 to rotate. The main shaft 31 drives the stirring blade 34 to rotate, which can continuously stir the sludge in the water bath liner 2, so that the sludge in different parts can come into contact with the water bath liner 2 and the heat transfer rod 61 in turn, thereby achieving uniform temperature of the sludge more quickly. This is conducive to the fermentation of microorganisms at a suitable temperature and improves the sludge treatment efficiency.

Claims

1. A microbial sludge treatment device with constant temperature function, comprising an insulated box (1) and a water bath inner tank (2), characterized in that, A water bath liner (2) containing sludge at the bottom is fixedly embedded between the two ends of the insulated box (1). A stirring assembly (3) is installed inside the water bath liner (2). A gap is formed between the insulated box (1) and the water bath liner (2), and the gap is filled with a heat-conducting medium (4). Multiple heating rods (5) for heating the heat-conducting medium (4) are fixedly embedded on both sides of the insulated box (1). Multiple heat-conducting components (6) for conducting heat from the heat-conducting medium (4) to the sludge are installed on the bottom wall of the water bath liner (2). The stirring paths of the heat-conducting components (6) and the stirring assembly (3) are staggered.

2. The microbial sludge treatment device with constant temperature function according to claim 1, characterized in that: The stirring assembly (3) includes a main shaft (31) that is rotatably embedded between the two end faces of the water bath inner tank (2) and a servo motor (32) fixed to the outer wall of one end of the water bath inner tank (2). The output end of the servo motor (32) is fixedly connected to the main shaft (31). Multiple connecting rings (33) are equidistantly sleeved on the outer wall of the main shaft (31). Stirring blades (34) are fixed on both sides of the connecting rings (33).

3. The microbial sludge treatment device with constant temperature function according to claim 2, characterized in that: A heat-conducting component (6) is provided between adjacent connecting rings (33). The heat-conducting component (6) is composed of multiple heat-conducting rods (61), and the heat-conducting rods (61) are all fixed on the bottom wall of the water bath inner tank (2).

4. The microbial sludge treatment device with constant temperature function according to claim 1, characterized in that: The bottom cross section of the water bath liner (2) is semi-circular. A discharge pipe (21) is fixed at the bottom end face of the water bath liner (2). A solenoid valve (22) is installed on the discharge pipe (21).

5. A microbial sludge treatment device with constant temperature function according to claim 1, characterized in that: The upper side of the water bath liner (2) is fixedly fitted with a feed inlet (23), and the upper flange of the feed inlet (23) is connected to an end cap (24).

6. The microbial sludge treatment device with constant temperature function according to claim 1, characterized in that: The lower side of the heat preservation box (1) is fixedly connected to a support base (11), and the bottom edge of the support base (11) is provided with multiple positioning holes (12).

7. A microbial sludge treatment device with constant temperature function according to claim 1, characterized in that: A drain pipe (13) is fixedly embedded on one side of the bottom end of the heat preservation box (1), and a pipe cap (14) is threadedly connected to the outside of the drain pipe (13).

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