Steady-flow sedimentation tank

Abstract

The utility model relates to and provides a steady-flow sedimentation tank which comprises a conical tank, the cover body is arranged at the top of the conical tank in a sealed mode, a filtering device is arranged on the side, facing the conical tank, of the cover body, and a liquid outlet is formed in the outer edge of the cover body; the feeding pipe, the cover body and the conical tank are coaxially arranged, one end of the feeding pipe penetrates through the cover body and then is inserted into the conical tank, and a flow stabilizing plate is coaxially arranged at the bottom of the feeding pipe; and the conical tank is communicated with the separation box through a connecting short pipe. According to the utility model, the main body part of the steady-flow sedimentation tank is arranged into the conical tank, then the cover body with the filtering device is arranged at the top of the conical tank, materials are injected into the conical tank through the feeding pipe, and the outlet part of the feeding pipe is close to the outlet part of the conical tank, so that the liquid level is lifted by injecting the materials; and the liquid in the conical tank flows out of the steady-flow sedimentation tank through the liquid outlet after being filtered by the filtering device, so that dynamic balance is realized, and the separation of extracted supernate and solid substances is achieved.

Description

Technical Field

[0001] This utility model relates to solid-liquid separation equipment, specifically to a steady-flow sedimentation tank. Background Technology

[0002] With the development of industry and agriculture and the improvement of people's living standards, there is an increasing amount of organic waste such as livestock and poultry manure, human excrement, organic-rich household garbage, and crop straw. Composting has become one of the main methods for treating organic waste. Composting is a biochemical process that utilizes microorganisms that are widely present in nature and promotes the transformation of biodegradable organic matter into stable humus through human regulation and control.

[0003] Based on the differences in the growth environment of composting microorganisms, composting can be divided into two types: aerobic composting and anaerobic composting. Aerobic composting involves mixing the organic materials to be composted with fillers in a certain proportion and composting under suitable conditions, allowing microorganisms to multiply and degrade organic matter, thereby stabilizing the organic solid waste. Anaerobic composting is the process of decomposing and transforming the organic matter in waste under anaerobic conditions using anaerobic microorganisms. Because anaerobic microorganisms decompose organic matter slowly, have low processing efficiency, easily produce foul odors, and have difficult-to-control process conditions, they are less commonly used. Aerobic composting, on the other hand, involves high temperatures, strong activity of composting microorganisms, rapid decomposition of organic matter, and more thorough degradation. Furthermore, the high-temperature sterilization during composting kills pathogens, parasites, and insect eggs in the organic waste, improving the performance of the compost.

[0004] In existing bio-fermentation processes, the production equipment is numerous and the fermentation process is complex, requiring steps such as drying, decomposition, and fermentation. These steps generate odors, and if these odors are not treated and are directly released into the atmosphere, they will cause environmental pollution.

[0005] The applicant provides a thermal odor removal and absorption device and method to remove odors in the aforementioned process. The thermal odor removal and absorption device and method provided by the applicant requires the use of a steady-flow sedimentation tank. A steady-flow sedimentation tank is a solid-liquid separation device that allows solid matter to naturally settle to the bottom by allowing the wastewater to remain still, thereby completing solid-liquid separation. However, this common steady-flow sedimentation tank is not suitable for the method provided by the applicant; the applicant needs a steady-flow sedimentation tank that can be used dynamically. Utility Model Content

[0006] The main objective of this invention is to provide a steady-flow sedimentation tank in order to achieve the above-mentioned objective.

[0007] To achieve the above objectives, this utility model provides a steady-flow sedimentation tank, comprising:

[0008] Conical tank;

[0009] The lid is sealed at the top of the conical tank. A filter device is provided on the side of the lid facing the conical tank, and a liquid outlet is provided on the outer extension of the lid.

[0010] The feed pipe is coaxially arranged with the cover and the conical tank. One end of the feed pipe passes through the cover and is inserted into the conical tank. A flow stabilizer is coaxially provided at the bottom of the feed pipe.

[0011] The separation chamber is connected to the conical tank via a thin pipe.

[0012] Preferably, the bottom of the feed pipe is positioned near the smaller diameter end of the conical tank.

[0013] Preferably, the filtration device is a sponge or a filter cloth.

[0014] Preferably, the flow stabilizer is conical, with the smaller diameter end of the flow stabilizer located inside the feed pipe and the larger diameter end located outside the feed pipe.

[0015] Preferably, the lid has a groove on the side facing the conical tank, the filter device is installed in the groove, and the liquid outlet is connected to the groove.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention designs the main body of the steady-flow sedimentation tank as a conical tank, and then installs a cover with a filter device on the top of the conical tank. Material is then injected into the conical tank through a feed pipe, with the outlet of the feed pipe close to the outlet of the conical tank. In this way, the injected material raises the liquid level, allowing the liquid in the conical tank to be filtered by the filter device and then flow out of the steady-flow sedimentation tank through the outlet, thereby achieving dynamic equilibrium and separating the supernatant from the solid matter. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a flowchart of the entire process of the thermal deodorization and absorption device of this utility model;

[0020] Figure 2 This is a schematic diagram of the jet desludge remover of the thermal odor removal and absorption device of this utility model;

[0021] Figure 3 This is a schematic diagram of the accelerating pipe of the separator in the thermal deodorization and absorption device of this utility model;

[0022] Figure 4 A schematic diagram of the steady-flow sedimentation tank of the thermal odor removal and absorption device of this utility model.

[0023] Explanation of reference numerals in the attached figures

[0024] 100. Atomizing absorption spray tower;

[0025] 101. Air inlet; 102. Overflow outlet; 103. Liquid inlet; 104. Spraying device;

[0026] 105. Demister;

[0027] 200. Jet desliming device;

[0028] 210. Jet pump; 220. Separator; 230. Collection tank; 240. Delivery pipeline;

[0029] 231. Accelerator pipeline; 250. Sodium bicarbonate;

[0030] 300. Flow stabilizing sedimentation tank;

[0031] 310. Conical tank; 320. Separator; 330. Feed pipe; 340. Flow stabilizer;

[0032] 350. Cover;

[0033] 400. Plate and frame filter press; 500. Supernatant recovery tank. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figure 1 As shown, this embodiment provides a thermal deodorization and absorption device, including a hot air blower, an atomizing absorption spray tower 100, a jet desliming device 200, a steady-flow sedimentation tank 300, a plate and frame filter press 400, and a supernatant recovery tank 500. The specific usage method is as follows:

[0036] S100: The odorous gas, after being heated by a hot air blower, enters the atomizing absorption spray tower 100. In this step, the gas is heated by a hot air blower to increase its molecular activity, preparing it for subsequent chemical treatment.

[0037] S200: After the odorous gas enters the atomizing absorption spray tower 100, it enters the area where the spray equipment is located. The odorous components in the gas are absorbed by the purification liquid sprayed by the spray equipment and fall into the purification liquid at the bottom of the atomizing absorption spray tower 100.

[0038] In this step, the heated gas enters the atomizing absorption spray tower 100 through the air inlet 101. The atomizing absorption spray tower 100 is equipped with a demister 105, multiple sets of spray devices 104, and a purification liquid. To ensure the purification liquid sprayed by the spray devices 104 fully absorbs odor molecules in the gas, the spray area of ​​the spray devices 104 is three times the cross-sectional area of ​​the atomizing absorption spray tower 100. The demister 105 is located at the top of the spray devices 104, thus maintaining the temperature of the discharged gas at approximately 20 degrees Celsius, ensuring consistently low-temperature emissions. The purification liquid is stored at the bottom of the atomizing spray tower. The atomizing absorption spray tower 100 is equipped with an overflow port 102 and a liquid inlet 103. The purification liquid is discharged from the atomizing absorption spray tower 100 through the overflow port 102 and flows into the supernatant recovery tank 500. Simultaneously, the purification liquid in the supernatant recovery tank 500 can be replenished through the liquid inlet 103. Therefore, during the design process, the height of the overflow port 102 can be made higher than that of the inlet port 103. The atomizing absorption spray tower 100 is externally equipped with an adjustment device for regulating the pH value of the purified liquid.

[0039] Specifically, the regulating device includes a regulating liquid tank and regulating liquid pipelines. The regulating liquid pipelines include a primary pipeline and a secondary pipeline. The primary pipeline is equipped with a solenoid valve and a first manual valve located on both sides of the solenoid valve. A pH meter is electrically connected to the solenoid valve. The secondary pipeline is equipped with a second manual valve. When the pH meter detects a low pH value in the purified liquid, it opens the solenoid valve to replenish the regulating liquid. The first manual valve in the primary pipeline remains normally open and can be closed when the solenoid valve needs maintenance. The secondary pipeline can be used when it is necessary to continuously replenish the regulating liquid to the atomizing absorption spray tower 100.

[0040] S300: The jet desliming device 200 draws in the mixed liquid containing impurities and purified liquid from the bottom of the atomizing absorption spray tower 100. After absorbing most of the water in the mixed liquid, the jet desliming device 200 sprays it into the atomizing absorption spray tower 100 through the spraying equipment. The remaining part falls to the bottom of the jet desliming device 200.

[0041] The bottom of the atomizing absorption spray tower 100 is connected to the jet desliming device 200. The mixture of impurities and purified liquid at the bottom of the atomizing absorption spray tower 100 can be sprayed into the jet desliming device 200. These mixtures can be initially separated in the jet desliming device 200. The liquid separated in the jet desliming device 200 can enter the spraying device 104, and the impurities separated by the jet desliming device 200 fall to the bottom of the jet desliming device 200.

[0042] like Figure 1 and Figure 2As shown, the jet desliming device 200 includes a jet pump 210 and a separator 220. The inlet of the jet pump 210 is connected to the bottom of the atomizing absorption spray tower 100. An acceleration pipe 231 is provided on one side of the separator 220, and the outlet of the jet pump 210 is connected to the acceleration pipe 231. The jet pump 210 draws the purified liquid and impurities from the bottom of the atomizing absorption spray tower 100 into the conveying pipe 240. After secondary acceleration through the acceleration pipe 231, the purified liquid and impurities, having reached a certain velocity, are injected together into the separator 220. In this way, the separator 220 performs preliminary solid-liquid separation.

[0043] Specifically, the separator 220 includes a circular tube, a suction pipe, a conical tube, a connecting short pipe, and a collection box 230. One end of the circular tube is sealed, and the other end of the circular tube is sealed to the large-diameter end of the conical tube. The small-diameter end of the conical tube is sealed to one end of the connecting short pipe. The other end of the connecting short pipe is inserted into the collection box 230 and sealed thereto. The collection box 230 collects the separated impurity particles and part of the purified liquid. One end of the suction pipe is inserted into the sealed end of the circular tube. A portion of the suction pipe inside the circular tube has multiple through holes, through which the separated liquid is simultaneously drawn into the suction pipe. The other end of the suction pipe is connected to the spray device 104, and the accelerating pipe 231 is connected to the circular tube. The outlet of the accelerating pipe 231 is located tangentially to the circular tube. The accelerating pipe 231 is conical, and its small-diameter end is sealed to the circular tube.

[0044] Preferably, in this embodiment, as described above, a secondary acceleration is required using the acceleration pipe 231; therefore, the acceleration pipe 231 and the delivery pipe 240 need to be kept in a sealed state. Specifically, as... Figure 3 As shown, a sealing device is provided between the accelerating pipe 231 and the conveying pipe 240. The sealing device includes a groove, a rubber band, and sodium bicarbonate 250. The groove is set on the accelerating pipe 231, the rubber band is sealed at the top of the groove, and the sodium bicarbonate 250 fills the groove. Thus, when the heated purification liquid passes through the groove, the temperature of the purification liquid causes the sodium bicarbonate 250 to undergo a pyrolysis reaction, producing carbon dioxide gas, which in turn supports the rubber band, achieving a sealing effect. It should be noted that if the temperature of some purification liquids does not reach the pyrolysis temperature, baking can be used to pyrolyze the sodium bicarbonate 250.

[0045] S400: The steady flow settling tank 300 draws in the remaining mixed liquid that falls into the bottom of the jet desliming device 200. After settling in the steady flow settling tank 300, the supernatant in the steady flow settling tank 300 is discharged by continuously filling the steady flow settling tank 300 with mixed liquid. The discharged supernatant flows into the supernatant recovery tank 500.

[0046] Impurities separated at the bottom of the jet desander 200 enter the steady flow settling tank 300. The top of the steady flow settling tank 300 is equipped with a filter device. The middle part of the top of the steady flow settling tank 300 is equipped with a feed pipe 330. The bottom of the feed pipe 330 is close to the bottom of the steady flow settling tank 300. Impurities entering the steady flow settling tank 300 from the jet desander 200 enter the steady flow settling tank 300 through the feed pipe 330. The supernatant at the top of the steady flow settling tank 300 enters the supernatant recovery tank 500 after being filtered by the filter device.

[0047] Specifically, such as Figure 1 and Figure 4 As shown, the main body of the steady-flow sedimentation tank 300 is a conical tank 310. A cover 350 is sealed at the top of the conical tank 310, and the filter device is located on the top of the cover 350, facing one side of the conical tank 310. A supernatant outlet is provided on the outer edge of the cover 350, and the supernatant outlet is connected to the supernatant recovery tank 500. The filter device can be a commercially available, mature product that meets the usage requirements, such as a sponge or filter cloth. The separated solid impurities enter the separation chamber 320. Furthermore, a thin pipe is provided between the separation chamber 320 and the conical tank 310. Solid impurities are used to block the thin pipe, preventing excessive purified liquid from entering the separation chamber 320. Then, the fixed impurities in the thin pipe are drawn into the plate and frame filter press 400.

[0048] In this embodiment, in order to avoid disturbing the supernatant in the upper layer of the steady flow sedimentation tank 300 during the feeding process, a flow stabilizing plate 340 is coaxially provided at the bottom of the feed pipe 330. The flow stabilizing plate 340 is conical, with the tip of the flow stabilizing plate 340 located inside the feed pipe 330 and the large-diameter end of the flow stabilizing plate 340 located outside the feed pipe 330.

[0049] S500: The plate and frame filter press 400 draws in the mixed liquid containing impurities from the steady flow sedimentation tank 300. After being filtered by the plate and frame filter press 400, the dry matter and liquid are separated, and the separated liquid flows into the supernatant recovery tank 500.

[0050] In this step, the impurities at the bottom of the steady flow sedimentation tank 300 enter the plate and frame filter press 400. After the dry material is filtered by the plate and frame filter press 400, the dry material is recovered. The filtered liquid flows back into the supernatant recovery tank 500. The outlet of the supernatant recovery tank 500 is connected to the inlet 103 of the atomizing absorption spray tower 100.

[0051] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A steady-flow sedimentation tank, characterized in that, include: Conical tank; A cover body is provided to seal the top of the conical tank. A filter device is provided on the side of the cover body facing the conical tank, and a liquid outlet is provided on the outer extension of the cover body. The feed pipe is coaxially arranged with the cover and the conical tank. One end of the feed pipe passes through the cover and is inserted into the conical tank. A flow stabilizer is coaxially provided at the bottom of the feed pipe. The separation chamber is connected to the conical tank via a thin pipe.

2. The steady-flow sedimentation tank according to claim 1, characterized in that, The bottom of the feed pipe is located near the small-diameter end of the conical tank.

3. A steady-flow sedimentation tank according to claim 1, characterized in that, The filtration device is a sponge or a filter cloth.

4. A steady-flow sedimentation tank according to claim 1, characterized in that, The flow stabilizer plate is conical, with its small-diameter end located inside the feed pipe and its large-diameter end located outside the feed pipe.

5. A steady-flow sedimentation tank according to claim 1, characterized in that, The cover has a groove on the side facing the conical tank, the filter device is disposed in the groove, and the liquid outlet is connected to the groove.

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