Treatment equipment for stevioside production wastewater
By designing stevia production wastewater treatment equipment, using anaerobic bacteria to decompose organic matter to generate biogas and capture it, the problems of poor wastewater treatment effect and inconvenient biogas collection in the prior art are solved, and efficient wastewater treatment and biogas capture are achieved.
Patent Information
- Application Number
- CN202323562322.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The wastewater generated in the existing stevia production process has poor effect, especially the incomplete treatment of organic matter, and the unreasonable design of the existing anaerobic fermentation device has led to inconvenience in biogas collection.
A wastewater treatment equipment for stevia production is designed, including the bottom wastewater and sludge inlet, the upper effluent and sludge outlet, the top gas buffer chamber, the internal distributor, sludge barrier components and multi-layer gas collecting components, using anaerobic bacteria The organic matter is decomposed to generate biogas, and the biogas is captured through the gas collection component. The spoiler component reduces the wastewater flow rate, and the sludge blocking component prevents sludge from entering the gas buffer chamber.
It realizes effective decomposition of wastewater and efficient capture of biogas, improves the efficiency of organic matter decomposition, avoids sludge entering the gas buffer chamber, and simplifies the wastewater treatment process.
Smart Images
Figure CN222348790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stevioside production, in particular to a treatment device for stevioside production wastewater. Background Art
[0002] Stevioside, also known as stevioside, is a glycoside extracted from the leaves of Stevia Rebaudia (called Stevia in my country). At present, a large amount of wastewater is generated in the production process of stevioside. The water quality is complex and the pollutant content is high. The wastewater contains not only organic pollutants but also inorganic chemical components such as acids and alkalis. The prior art collects these wastewaters through a collection pool and then adds chemical agents for treatment. On the one hand, this operation is costly and inconvenient to operate. On the other hand, the wastewater treatment effect is poor, especially the organic matter in the wastewater cannot be effectively treated. The prior art discloses the use of anaerobic fermentation equipment to treat wastewater using sludge, and converts the organic matter in the wastewater into biogas for effective utilization. However, the design of the existing anaerobic fermentation equipment is unreasonable. When the biogas rises, part of the sludge will be entrained into the interior of the separation chamber, which is not convenient for the collection of biogas. Therefore, in view of the above problems, it is necessary to develop a treatment device for stevioside production wastewater. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in view of the deficiencies of the prior art, a treatment device for stevioside production wastewater is provided, by which the stevioside production wastewater can be effectively treated and biogas during wastewater treatment can be collected.
[0004] In order to solve the above technical problems, the technical solution of the utility model is:
[0005] A treatment device for stevioside production wastewater comprises a main body, wherein wastewater inlet and sludge inlet are respectively arranged on both sides of the bottom of the main body, a water outlet and a sludge outlet are arranged on one side of the upper part of the main body, the sludge outlet is connected to the sludge inlet through a circulating pump, and a gas buffer chamber is arranged on the top of the main body; a distributor connected to the wastewater inlet is arranged at the lower part of the main body, a sludge blocking component is arranged at the upper part of the main body, a plurality of gas collecting components connected to the gas buffer chamber are arranged between the distributor and the sludge blocking component, and a plurality of spoiler components are arranged between two adjacent layers of the gas collecting components.
[0006] As an improved technical solution, the distributor is a conical body with a hollow structure formed by welding a plurality of fan-shaped blades, and a plurality of through holes are provided on the upper surface of each fan-shaped blade.
[0007] As an improved technical solution, the gas collecting component includes an upper gas collecting hood and a lower gas collecting hood, a gap is provided between the upper gas collecting hood and the lower gas collecting hood, the upper gas collecting hood and the lower gas collecting hood are respectively welded by multiple pieces of corrugated stainless steel plates, a gap is provided between two adjacent stainless steel plates, and a gas collecting branch pipe is provided on the upper part of each of the stainless steel plates, and the end of the gas collecting branch pipe is connected to the gas buffer chamber through the gas collecting main pipe.
[0008] As an improved technical solution, the spoiler component includes a fixed sleeve, the fixed sleeve is rotatably connected to the gas collecting branch pipe, and a plurality of blades are arranged on the outside of the fixed sleeve.
[0009] As an improved technical solution, the sludge blocking component includes a left fender, a connecting plate and a right fender of an integral structure, the left fender, the connecting plate and the right fender are funnel-shaped, and a through hole is provided on the connecting plate.
[0010] As an improved technical solution, a plurality of baffles are provided inside the gas buffer chamber, and a plurality of through holes are provided on the baffles.
[0011] After adopting the above technical solution, the beneficial effects of the utility model are:
[0012] The treatment equipment for stevioside production wastewater includes a main body, wastewater inlet and sludge inlet are respectively arranged on both sides of the bottom of the main body, a water outlet and a sludge outlet are arranged on one side of the upper part of the main body, the sludge outlet is connected to the sludge inlet through a circulation pump, and a gas buffer chamber is arranged on the top of the main body; a distributor connected to the wastewater inlet is arranged at the lower part of the main body, a sludge blocking component is arranged at the upper part of the main body, multiple layers of gas collecting components connected to the gas buffer chamber are arranged between the distributor and the sludge blocking component, and multiple flow disturbance components are arranged between two adjacent layers of gas collecting components. In actual production, sludge enters the interior of the main body from the sludge inlet, and stevioside production wastewater enters the interior of the distributor along the pipeline through a delivery pump, and contacts with the sludge after being evenly dispersed. Under the action of the circulation pump, the sludge and wastewater are fully contacted and mixed, and the anaerobic bacteria in the sludge effectively decompose the organic matter in the wastewater, so that the organic matter is converted into biogas, which greatly improves the decomposition efficiency. The wastewater flows upward with the sludge, and the spoiler can reduce the flow rate of the wastewater, which plays a role in stabilizing the flow; the biogas generated by the decomposition enters the interior of the gas collecting component, and the captured gas moves upward into the interior of the gas buffer chamber, and the sludge is intercepted by the sludge blocking component to avoid entering the interior of the gas buffer chamber. The above-mentioned treatment equipment is reasonably designed to achieve effective decomposition of wastewater, and the generated biogas can be captured by the gas collecting component, and then the circulation speed of the wastewater can be reduced by the spoiler, and the sludge blocking component can prevent the sludge from entering the interior of the gas buffer chamber.
[0013] Since the distributor is a cone-shaped body with a hollow structure formed by welding a plurality of fan-shaped blades, a plurality of through holes are provided on the upper surface of each fan-shaped blade. In actual production, wastewater enters the interior of the distributor along the pipeline under the action of the delivery pump, and is evenly dispersed after passing through the through holes, so that the sludge is constantly stirred and fully contacted and mixed. The distributor of the above structure has a simple structure and a reasonable design, which realizes the uniform dispersion of wastewater and the stirring of sludge, and also promotes the full contact between wastewater and sludge, thereby contributing to the effective treatment of wastewater.
[0014] Since the gas collecting component includes an upper gas collecting hood and a lower gas collecting hood, a gap is provided between the upper gas collecting hood and the lower gas collecting hood, and the upper gas collecting hood and the lower gas collecting hood are respectively welded by multiple pieces of corrugated stainless steel plates, and a gap is provided between two adjacent stainless steel plates, and a gas collecting branch pipe is provided on the upper part of each stainless steel plate, and the end of the gas collecting branch pipe is connected to the gas buffer chamber through the gas collecting main pipe. In actual production, the generated biogas enters the gas collecting branch pipe of the upper gas collecting hood along the gas collecting branch pipe of the lower gas collecting hood, and then enters the interior of the gas buffer chamber along the gas collecting main pipe. The gas collecting component of the above structure is reasonably designed, which realizes the effective capture of biogas, and also facilitates the separation of biogas from wastewater and sludge.
[0015] Since the flow-disturbing component includes a fixed sleeve, which is rotatably connected to the gas collecting branch pipe, and a plurality of blades are arranged outside the fixed sleeve, under the action of the circulating pump, the wastewater flows upward with the sludge, and the water flow drives the blades to rotate, and the rotation of the blades will inhibit the flow rate of the water flow, thereby playing a role in stabilizing the flow.
[0016] Since the sludge blocking component includes a left fender, a connecting plate and a right fender of an integrated structure, the left fender, the connecting plate and the right fender are funnel-shaped as a whole, and a through hole is provided on the connecting plate. When the biogas moves upward, part of the sludge flows upward with the wastewater under the action of the circulation pump, and the sludge is intercepted by the left and right fenders. The wastewater entering the gas buffer chamber flows through the through hole into the interior of the main body, and then is discharged from the water outlet. The sludge blocking component of the above structure is reasonably designed. On the one hand, it blocks the sludge to prevent the sludge from entering the interior of the gas buffer chamber; on the other hand, it also helps the wastewater entering the buffer chamber to flow into the interior of the main body.
[0017] Since the gas buffer chamber is provided with multiple baffles and multiple through holes, the captured biogas will carry a small amount of wastewater into the gas buffer chamber, and the biogas will flow upward through the through holes of the baffles, while the small amount of wastewater will slide down along the inner wall of the baffles and fall into the interior of the main body. The gas buffer chamber of the above structure is reasonably designed, which is convenient for the biogas to flow upward and also convenient for the discharge of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This utility model is a treatment device for stevioside production wastewater;
[0019] Among them, 1-main body, 2-circulation pump, 3-gas buffer chamber, 30-baffle, 4-distributor, 5-sludge blocking component, 50-left mudguard, 51-connecting plate, 52-right mudguard, 6-gas collecting component, 60-upper gas collecting hood, 61-lower gas collecting hood, 62-gas collecting branch pipe, 63-gas collecting main pipe, 7-spoiler component, 70-fixing sleeve, 71-blade. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0021] A treatment device for stevioside production wastewater, such as Figure 1 As shown, it includes a body 1, wastewater inlet and sludge inlet are respectively arranged on both sides of the bottom of the body 1, a water outlet and a sludge outlet are arranged on one side of the upper part of the body 1, the sludge outlet is connected to the sludge inlet through a circulating pump 2, and a gas buffer chamber 3 is arranged on the top of the body 1; a distributor 4 connected to the wastewater inlet is arranged at the lower part of the body 1 (welded and connected to the bottom of the body through a connecting rod), a sludge blocking component 5 is arranged at the upper part of the body, and multiple layers of gas collecting components 6 connected to the gas buffer chamber 3 are arranged between the distributor 4 and the sludge blocking component 5, and multiple spoiler components 7 are arranged between two adjacent layers of gas collecting components 6. The distributor 4 is a conical body with a hollow structure formed by welding multiple fan-shaped blades, and the upper surface of each fan-shaped blade is provided with multiple through holes. The gas collecting component 6 includes an upper gas collecting hood 60 and a lower gas collecting hood 61, a gap is provided between the upper gas collecting hood 60 and the lower gas collecting hood 61, and they are connected by welding through a connecting rod (the connecting rod is welded to the inner wall of the body through a connecting plate), the upper gas collecting hood 60 and the lower gas collecting hood 61 are respectively welded by multiple corrugated stainless steel plates, a gap is provided between two adjacent stainless steel plates, and a gas collecting branch pipe 62 is provided on the upper part of each stainless steel plate, and the end of the gas collecting branch pipe 62 is connected to the gas buffer chamber through a gas collecting main pipe 63. The spoiler component 7 includes a fixed sleeve 70, which is rotatably connected to the gas collecting branch pipe through a bearing, and a plurality of blades 71 are provided on the outside of the fixed sleeve 70. The sludge blocking component 5 includes a left mudguard 50 (welded to the inner wall of the body), a connecting plate 51 and a right mudguard 52 (welded to the inner wall of the body) of an integral structure, the left mudguard 50, the connecting plate 51 and the right mudguard 52 are funnel-shaped as a whole, and a through hole is provided on the connecting plate 51.
[0022] In actual production, sludge enters the interior of the main body from the sludge inlet, and stevioside production wastewater enters the interior of the distributor along the pipeline through the delivery pump. After passing through the through hole, it is evenly dispersed so that the sludge is constantly stirred and fully contacted and mixed. Under the action of the circulating pump, the sludge and wastewater are fully contacted and mixed. The anaerobic bacteria in the sludge effectively decompose the organic matter in the wastewater, and the biogas produced by the decomposition enters the gas collecting branch pipe of the upper gas collecting hood along the gas collecting branch pipe of the lower gas collecting hood, and then enters the interior of the gas buffer chamber along the gas collecting main pipe. When the wastewater flows upward with the sludge, the water flow pushes the blades to rotate, and the rotation of the blades will inhibit the flow rate of the water flow, thereby playing a role in stabilizing the flow; when the biogas moves upward, part of the sludge flows upward with the wastewater under the action of the circulating pump, and the sludge is intercepted by the left and right fenders. The wastewater entering the gas buffer chamber passes through the through hole and flows into the interior of the main body, and then is discharged from the water outlet. The above-mentioned treatment equipment is reasonably designed and realizes effective decomposition of wastewater. The generated biogas can be captured by the gas collecting component, and the circulation speed of the wastewater can be reduced by the spoiler component. The sludge blocking component can prevent sludge from entering the interior of the gas buffer chamber.
[0023] The gas buffer chamber 3 is provided with a plurality of baffles 30, and the baffles are provided with a plurality of through holes. The captured biogas will carry a small amount of wastewater into the gas buffer chamber, and the biogas will flow upward through the through holes of the baffles, while the small amount of wastewater will slide down along the inner wall of the baffles and fall into the interior of the body. The gas buffer chamber of the above structure is reasonably designed, which is convenient for the biogas to flow upward and also convenient for the discharge of wastewater.
[0024] 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 treatment device for stevioside production wastewater, characterized in that: It includes a main body, wherein wastewater inlet and sludge inlet are respectively arranged on both sides of the bottom of the main body, a water outlet and a sludge outlet are arranged on one side of the upper part of the main body, the sludge outlet is connected to the sludge inlet through a circulating pump, and a gas buffer chamber is arranged on the top of the main body; a distributor connected to the wastewater inlet is arranged at the lower part of the main body, a sludge blocking component is arranged at the upper part of the main body, a plurality of gas collecting components connected to the gas buffer chamber are arranged between the distributor and the sludge blocking component, and a plurality of spoiler components are arranged between two adjacent layers of the gas collecting components.
2. The treatment equipment for stevioside production wastewater according to claim 1, characterized in that: The distributor is a conical body with a hollow structure formed by welding a plurality of fan-shaped blades, and a plurality of through holes are arranged on the upper surface of each fan-shaped blade.
3. The treatment equipment for stevioside production wastewater according to claim 1, characterized in that: The gas collecting component includes an upper gas collecting hood and a lower gas collecting hood, a gap is provided between the upper gas collecting hood and the lower gas collecting hood, the upper gas collecting hood and the lower gas collecting hood are respectively welded by multiple pieces of corrugated stainless steel plates, a gap is provided between two adjacent stainless steel plates, and a gas collecting branch pipe is provided on the upper part of each of the stainless steel plates, and the end of the gas collecting branch pipe is connected to the gas buffer chamber through the gas collecting main pipe.
4. The treatment equipment for stevioside production wastewater according to claim 3, characterized in that: The spoiler component comprises a fixing sleeve, the fixing sleeve is rotatably connected to the gas collecting branch pipe, and a plurality of blades are arranged on the outside of the fixing sleeve.
5. The treatment equipment for stevioside production wastewater according to claim 1, characterized in that: The sludge blocking component comprises a left fender, a connecting plate and a right fender of an integral structure, wherein the left fender, the connecting plate and the right fender are funnel-shaped, and a through hole is provided on the connecting plate.
6. The treatment equipment for stevioside production wastewater according to claim 1, characterized in that: A plurality of baffles are arranged inside the gas buffer chamber, and a plurality of through holes are arranged on the baffles.