Dosing device
By designing a dosing device to achieve uniform mixing of methane inhibitor and water or ethanol, and utilizing an automatic adding system, the problems of uneven mixing and difficulty in manual addition are solved, thereby improving utilization and reducing costs.
Patent Information
- Application Number
- CN202421839523.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the prior art, the methane inhibitor is not mixed uniformly with water or ethanol, resulting in a reduced utilization rate of the methane inhibitor and a time-consuming and labor-intensive addition process.
A dosing device is designed, including a mixing tank, a stirring device, a metering pump and a diversion barrel. The methane inhibitor is mixed evenly with water or ethanol through the stirring device, and automatic addition is achieved using the metering pump and reflux pipe system.
The utilization rate of methane inhibitor is improved, the labor cost and labor intensity of staff are reduced, and the adding process is simplified.
Smart Images
Figure CN223445508U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of chemical auxiliary material adding equipment, and particularly relates to a dosing device, in particular to an automatic adding device of a methane inhibitor. BACKGROUND
[0002] The strain used in the project of producing fuel ethanol by microorganism fermentation of industrial tail gas of silicon-manganese alloy is special. In the production process of fuel ethanol, the yield of fuel ethanol can be reduced due to infection of other strains. At present, the most common strain in the production process is methane bacteria, and therefore, it is crucial to inhibit the propagation and growth of methane bacteria. In the prior art, a common inhibition method is to add a methane inhibitor into a bioreactor to inhibit the growth of methane bacteria.
[0003] However, in actual production, the methane inhibitor (in powder form) and water or ethanol need to be mixed uniformly in proportion, and then manually poured into a reagent adding port (located at the position of three layers of the bioreactor) on the bioreactor. The whole adding process needs to consume a large amount of manpower and takes a long time, making the adding operation of the methane inhibitor more difficult. Meanwhile, the phenomenon of uneven mixing of the methane inhibitor with water or ethanol can occur, resulting in a reduction in the utilization rate of the methane inhibitor. Therefore, it is very necessary to design an automatic adding device of the methane inhibitor. SUMMARY
[0004] To solve the above technical problems, the application provides a dosing device to solve the technical problem that the methane inhibitor in the prior art is prone to uneven mixing with water or ethanol during adding, resulting in a reduction in the utilization rate of the methane inhibitor.
[0005] The technical scheme adopted to achieve the purpose of the application is as follows:
[0006] The dosing device comprises a mixing tank and a stirring device.
[0007] The stirring device is arranged on the mixing tank, and a stirring end of the stirring device is located in the interior of the mixing tank.
[0008] A metering pump is arranged at the liquid outlet end of the mixing tank, and the liquid outlet end of the mixing tank is communicated with a bioreactor through the metering pump.
[0009] In order to better achieve the application, the interior of the mixing tank is provided with a flow guide barrel in the above structure.
[0010] The upper end and the lower end of the flow guide barrel are through, a baffle plate is arranged at the opening of the lower end of the flow guide barrel, and the stirring end of the stirring device extends into the interior of the flow guide barrel from the opening of the upper end of the flow guide barrel.
[0011] In order to better realize the present invention, the above structure is further optimized. The outer wall of the guide barrel is coaxially provided with a ring plate, and the guide barrel is connected to the inner wall of the mixing tank through the ring plate.
[0012] In order to better realize the present utility model, further optimization is made in the above structure, the upper end surface of the ring plate is a slope, the height of the upper end surface of the ring plate away from one end of the guide barrel is greater than the height of the upper end surface of the ring plate close to one end of the guide barrel, and the height of the upper end surface of the ring plate close to one end of the guide barrel is greater than the height of the opening at the upper end of the guide barrel, or the height of the upper end surface of the ring plate close to one end of the guide barrel is flush with the height of the opening at the upper end of the guide barrel.
[0013] In order to better realize the present invention, further optimization is made in the above structure. The dosing device further includes a plurality of reagent tanks, and the liquid outlet ends of the reagent tanks are communicated with the interior of the mixing tank.
[0014] In order to better realize the present invention, further optimization is made in the above structure, and a valve is provided at the liquid outlet end of the reagent tank.
[0015] In order to better realize the utility model, the above structure is further optimized, and an ORP meter, a pH meter and a thermometer are provided on the mixing tank;
[0016] The probe of the ORP meter, the probe of the pH meter and the probe of the thermometer are all located inside the mixing tank.
[0017] In order to better realize the present invention, further optimization is made in the above structure, and an electric heating pipe is provided inside the mixing tank.
[0018] In order to better realize the present invention, further optimization is made in the above structure. A waste liquid discharge port is provided at the bottom of the mixing tank, and a sewage valve is provided at the waste liquid discharge port.
[0019] In order to better realize the present invention, further optimization is made in the above structure, and the dosing device further includes an adding tank;
[0020] The liquid outlet of the metering pump is connected to the bioreactor through the addition tank;
[0021] A reflux pipe is provided on the adding tank, and both ends of the reflux pipe are connected to the mixing tank and the adding tank respectively. The height of the liquid outlet end of the mixing tank is lower than the height of the liquid outlet end of the reflux pipe, and the height of the liquid inlet end of the adding tank is lower than the height of the liquid inlet end of the reflux pipe.
[0022] From the above technical solutions, the dosing device provided by the application can fully stir the mixed solution formed by mixing the methane inhibitor with water or ethanol by using the stirring device, so that the mixing of the methane inhibitor with water or ethanol is more uniform, so as to fully dissolve the methane inhibitor in water or ethanol, thereby improving the utilization rate of the methane inhibitor.
[0023] Meanwhile, the automatic adding device is delivered to the bioreactor by the metering pump to complete the delivery of the methane inhibitor, so as to reduce the delivery difficulty of the methane inhibitor, thereby effectively reducing the labor intensity of the staff and the labor cost of fuel ethanol production. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a structure schematic view of a dosing device described in the embodiments of the application.
[0025] Figure 2 It is a sectional view of a dosing device described in the embodiments of the application.
[0026] Figure 3 It is a structure schematic view of the cooperation between the stirring shaft and the stirring blade in a dosing device described in the embodiments of the application.
[0027] BRIEF DESCRIPTION OF DRAWINGS: 1-mixing tank, 2-adding tank, 3-bioreactor, 4-feeding valve, 5-water tank, 6-water delivery valve, 7-water delivery pipe, 8-ethanol tank, 9-liquid delivery valve, 10-liquid delivery pipe, 11-flow guide bucket, 12-baffle, 13-motor, 14-stirring shaft, 15-stirring blade, 16-metering pump, 17-first delivery pipe, 18-electric heating pipe, 19-backflow valve, 20-backflow pipe, 21-second delivery pipe, 22-ORP meter, 23-PH meter, 24-thermometer, 25-waste discharge valve. DETAILED DESCRIPTION
[0028] In order for the skilled person in the technical field to which the present application belongs to more clearly understand the present application, the technical solutions of the present application will be described in detail below with specific embodiments in combination with the drawings.
[0029] In the embodiments of the present application, according to the structures shown in Figure 1 , Figure 2 and Figure 3 , it can be seen that the dosing device comprises a mixing tank 1 and a stirring device; wherein,
[0030] The stirring device is arranged on the mixing tank 1, and the stirring end of the stirring device is located in the interior of the mixing tank 1, and the stirring end of the stirring device can stir the fluid mixture in the interior of the mixing tank 1, and in the embodiment, the stirring end of the stirring device can stir the methane inhibitor (powder) and the methane inhibitor solution (fluid mixture) formed by the water or ethanol added into the mixing tank 1, so that the methane inhibitor can be fully dissolved in the water or ethanol;
[0031] The liquid outlet of the mixing tank 1 is provided with a metering pump 16, and the liquid outlet of the mixing tank 1 is communicated with the bioreactor 3 through the metering pump 16, and the metering pump 16 can quantitatively provide the methane inhibitor solution to the bioreactor 3, without manually conveying the methane inhibitor solution to the bioreactor 3, so as to reduce the labor intensity of the workers and the labor cost of the fuel ethanol production.
[0032] According to Figure 2 As shown in the structure, the interior of the mixing tank 1 is provided with a flow guide barrel 11, wherein,
[0033] The upper end and the lower end of the flow guide barrel 11 are through, and when the methane inhibitor and the water or ethanol are added into the mixing tank 1 from the top of the mixing tank 1, the methane inhibitor and the water or ethanol can flow to the bottom of the mixing tank 1 through the flow guide barrel 11;
[0034] Of course, in order to make the methane inhibitor and the water or ethanol stay in the flow guide barrel 11 for a short time, the lower end of the flow guide barrel 11 is provided with a baffle 12, and the methane inhibitor and the water or ethanol will be hindered by the baffle 12 when passing through the flow guide barrel 11, so as to slow down the time of entering the bottom of the mixing tank 1, and the stirring end of the stirring device is inserted into the interior of the flow guide barrel 11 through the opening of the upper end of the flow guide barrel 11, which can stir the methane inhibitor and the water or ethanol staying in the flow guide barrel 11, so as to make the mixture of the methane inhibitor and the water or ethanol more uniform.
[0035] It should be noted that the baffle 12 is a plate structure, and a plurality of leakage holes for the methane inhibitor solution to flow out are arranged on the baffle 12, and the baffle 12 only slows down the time of the methane inhibitor solution flowing to the bottom of the mixing tank 1, and will not completely block the opening of the lower end of the flow guide barrel 11.
[0036] Optimally, the stirring device includes a motor 13, a stirring shaft 14 and stirring blades 15, as shown in Figure 2 ; wherein,
[0037] The motor 13 is fixedly arranged on the top of the mixing tank 1 through a mounting plate;
[0038] The stirring shaft 14 is rotatably arranged on the mixing tank 1, and a fixed end of the stirring shaft 14 is located outside the mixing tank 1 and is in transmission connection with an action output end of the motor 13.
[0039] The stirring blades 15 are arranged on the side wall of the stirring shaft 14 located inside the mixing tank 1, and more specifically, the stirring blades 15 are arranged on the side wall of the stirring shaft 14 extending into the inside portion of the flow guide barrel 11. The stirring blades 15 are multiple in number and are arranged at equal intervals around the circumference of the stirring shaft 14. See Figure 3 ;
[0040] When the methane inhibitor and the water or ethanol inside the flow guide barrel 11 need to be stirred, the motor 13 can be started to drive the stirring shaft 14 to rotate, so that the stirring blades 15 on the stirring shaft 14 can stir the methane inhibitor and the water or ethanol inside the flow guide barrel 11, thereby making the mixture of the methane inhibitor and the water or ethanol more uniform.
[0041] Preferably, the mounting plate is in an "L" shape structure, see Figure 1 and Figure 2 The mounting plate is located on the top of the mixing tank 1, and the number of the mounting plate is two. One side of the mounting plate is mounted and fixed on the mixing tank 1 by using fasteners commonly used in the prior art such as bolts and screws. The motor 13 is mounted and fixed on the other side of the mounting plate by using fasteners commonly used in the prior art such as bolts and screws. The two mounting plates are respectively located on the two sides of the motor 13, so that the motor 13 can be stably mounted on the top of the mixing tank 1.
[0042] Of course, the above-mentioned stirring device is not limited to the above-mentioned structure (the motor 13, the stirring shaft 14 and the stirring blades 15). The stirring blades 15 can be replaced by stirring rods arranged in an arc shape on the circumferential side wall of the stirring shaft 14 (not shown in the figure), and the multiple stirring rods are arranged at equal intervals around the circumference of the stirring shaft 14. In addition, any device capable of stirring the methane inhibitor and the water or ethanol inside the flow guide barrel 11 can be used.
[0043] Preferably, the outer side wall of the flow guide barrel 11 is coaxially provided with a ring plate, and the flow guide barrel 11 is connected with the inner side wall of the mixing tank 1 through the ring plate.
[0044] As the name implies, the above-mentioned ring plate is a ring plate structure, the shape surrounded by the inner edge of the ring plate matches the shape surrounded by the outer edge of the flow guide barrel 11; the shape surrounded by the outer edge of the ring plate matches the shape surrounded by the inner edge of the mixing tank 1, the flow guide barrel 11 is connected with the inner side wall of the mixing tank 1 through the ring plate, and the material adding port of the mixing tank 1 and the liquid inlet end of the metering pump 16 are respectively located on the upper and lower surfaces of the ring plate, so that the methane inhibitor and water or ethanol entering the mixing tank 1 from the top of the mixing tank 1 can only flow to the bottom of the mixing tank 1 through the flow guide barrel 11, and the methane inhibitor and water or ethanol are stirred by the stirring device when passing through the flow guide barrel 11, so that the mixing of the methane inhibitor and water or ethanol is more uniform.
[0045] Optimally, the upper end surface of the above-mentioned ring plate is a slope, as shown in Figure 2 , the height of the upper end surface of the ring plate away from the end of the flow guide barrel 11 (the outer edge of the ring plate) is greater than the height of the upper end surface of the ring plate close to the end of the flow guide barrel 11 (the inner edge of the ring plate), and the height of the upper end surface of the ring plate close to the end of the flow guide barrel 11 is greater than the height of the opening at the upper end of the flow guide barrel 11, or the height of the upper end surface of the ring plate close to the end of the flow guide barrel 11 is flush with the height of the opening at the upper end of the flow guide barrel 11, so that the methane inhibitor and water or ethanol falling on the ring plate can flow into the flow guide barrel 11 through the slope on the ring plate, so as to avoid the situation that the methane inhibitor and water or ethanol accumulate on the ring plate.
[0046] Optimally, the dosing device further comprises a plurality of reagent tanks, the liquid outlet end of the reagent tank is in communication with the inside of the mixing tank 1.
[0047] In the present embodiment, the number of the above-mentioned reagent tanks is two, as shown in Figure 1 and Figure 2 , the two reagent tanks are a water tank 5 for storing water and an ethanol tank 8 for storing ethanol;
[0048] The water tank 5 is in communication with the mixing tank 1 through a water delivery pipe 7, and the water inlet end of the water delivery pipe 7 is provided with a water delivery valve 6 to control the amount of water entering the mixing tank 1;
[0049] The ethanol tank 8 is in communication with the mixing tank 1 through a liquid delivery pipe 10, and the liquid inlet end of the liquid delivery pipe 10 is provided with a liquid delivery valve 9 to control the amount of ethanol entering the mixing tank 1, so as to better control the mixing ratio of the methane inhibitor and water or ethanol.
[0050] Optimally, the mixing tank 1 is provided with an ORP meter 22, a pH meter 23 and a thermometer 24, as shown in Figure 1 and Figure 2 ;
[0051] The probe of the ORP meter 22, the probe of the PH meter 23 and the probe of the thermometer 24 are all located inside the mixing tank 1, and are respectively used for monitoring the ORP value, the PH value and the temperature value of the methane inhibitor mixture in the mixing tank 1, so that the staff can better understand the state of the methane inhibitor mixture in the mixing tank 1 through the ORP meter 22, the PH meter 23 and the thermometer 24.
[0052] It should be noted that the ORP meter 22 is also called an oxidation-reduction potential analyzer, which is an instrument for continuously monitoring the oxidation-reduction state of a solution.
[0053] The ORP meter 22 mainly consists of a sensor and a secondary meter, and can provide information about the relative degree of oxidation or reduction of water quality, with the unit being mV; such an instrument not only plays an important role in the fields of process control, scientific research, environmental protection and sewage treatment, etc.
[0054] It is widely used in the fields of electric power, chemical industry, environmental protection, medicine and food, etc. to monitor and analyze various water qualities, and is a commonly known instrument to those skilled in the art.
[0055] The PH meter 23 is also called an acid-base detector, which is an instrument for measuring the pH value of a solution by using a pH indicating electrode by potential method, and is a commonly known instrument to those skilled in the art.
[0056] Optimally, the inside of the mixing tank 1 is provided with an electric heating tube 18, as shown in Figure 2 The electric heating tube 18 is arranged close to the bottom of the mixing tank 1, which can heat the methane inhibitor solution to facilitate the heating reaction of the methane inhibitor solution; at the same time, the electric heating tube 18 can be used in cooperation with the thermometer 24 to monitor the temperature of the methane inhibitor solution, and the electric heating tube 18 can be used to heat the temperature of the methane inhibitor solution, so that the methane inhibitor solution is always mixed at an appropriate temperature.
[0057] Of course, the heating temperature of the electric heating tube 18 can be adjusted according to the actual situation, that is, the heating range of the electric heating tube 18 is controlled.
[0058] Optimally, the bottom of the mixing tank 1 is provided with a waste liquid discharge port, and a blowdown valve 25 is arranged at the waste liquid discharge port, so that the waste liquid generated in the mixing tank 1 can be discharged by opening the blowdown valve 25.
[0059] Optimally, the dosing device further comprises an adding tank 2, as shown in Figure 1 and Figure 2 ; wherein,
[0060] The liquid outlet end of the metering pump 16 is communicated with the adding tank 2 through a first conveying pipe 17, and the adding tank 2 is communicated with the bioreactor 3 through a second conveying pipe 21.
[0061] The addition tank 2 is provided with a reflux pipe 20, two ends of the reflux pipe 20 are communicated with the mixing tank 1 and the addition tank 2 respectively, the height of the liquid outlet end of the mixing tank 1 is lower than the height of the liquid outlet end of the reflux pipe 20, the height of the liquid inlet end of the addition tank 2 is lower than the height of the liquid inlet end of the reflux pipe 20, and the liquid inlet end of the reflux pipe 20 is provided with a reflux valve 19;
[0062] Specifically, the liquid outlet end of the mixing tank 1 and the liquid outlet end of the reflux pipe 20 are located on the upper and lower surfaces of the ring plate respectively, the liquid inlet end of the addition tank 2 is arranged close to the bottom of the addition tank 2, and the liquid inlet end of the reflux pipe 20 is located on the top of the addition tank 2.
[0063] When it is needed to deliver the methane inhibitor solution into the bioreactor 3, the staff can open the metering pump 16, and the methane inhibitor solution in the mixing tank 1 is delivered into the addition tank 2 through the first delivery pipe 17 by the metering pump 16, the metering pump 16 is used to control the addition amount of the methane inhibitor solution, until the amount of the methane inhibitor solution in the addition tank 2 reaches a set value, the metering pump 16 is automatically closed, and the effect of automatically adding the methane inhibitor solution into the addition tank 2 is realized;
[0064] Subsequently, the addition tank 2 is filled with nitrogen again, and the methane inhibitor solution in the addition tank 2 is delivered into the bioreactor 3 through the second delivery pipe 21 by the pressure of the nitrogen.
[0065] In the embodiment, when it is needed to add nitrogen into the addition tank 2, the nitrogen can enter the mixing tank 1 through the feed valve 4, and the reflux valve 19 is in an open state, so that the nitrogen can be added into the addition tank 2 through the reflux pipe 20; by the action of the nitrogen pressure, the methane inhibitor solution in the addition tank 2 is instantaneously delivered into the bioreactor 3 through the second delivery pipe 21 within 2-3 seconds, so that the addition operation of the methane inhibitor is more convenient, the consumption of manpower is reduced, and the labor cost of fuel ethanol production is reduced.
[0066] It should be noted that the way of instantaneously delivering the methane inhibitor solution into the bioreactor 3 by using nitrogen can reduce the amount of nitrogen entering the bioreactor 3, and all the methane inhibitor solution in the addition tank 2 can be delivered into the bioreactor 3, so that the waste is avoided.
[0067] In addition, when it is needed to discharge the nitrogen in the addition tank 2, the feed valve 4 and the reflux valve 19 are only needed to be opened, the nitrogen in the addition tank 2 flows to the mixing tank 1 through the reflux pipe 20 after the reflux valve 19, and is discharged outwards through the feed valve 4 on the mixing tank 1, the discharged nitrogen can be recycled by using a recycling device, or is directly discharged.
[0068] Through the above embodiment, the application has the following beneficial effects or advantages:
[0069] 1) The dosing device provided by the application can use the stirring device to stir the methane inhibitor with water or ethanol, so that the mixture of the methane inhibitor and water or ethanol is more uniform, thereby improving the utilization rate of the methane inhibitor.
[0070] 2) The automatic adding device is delivered to the bioreactor 3 through the adding tank 2, and the delivery of the methane inhibitor solution is completed, so as to reduce the delivery difficulty of the methane inhibitor solution, thereby effectively reducing the labor cost of fuel ethanol production.
[0071] Of course, the use of the dosing device is not limited to the addition of the methane inhibitor, but can also be used for the addition of other chemical drugs, that is, the working mode of mixing powder or liquid drugs with other liquids before adding them into the reactor can also use the dosing device.
[0072] Although the preferred embodiments of the application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the application.
[0073] Obviously, those skilled in the art can make various modifications and variations to the application without departing from the spirit and scope of the application. Thus, if these modifications and variations of the application fall within the scope of the claims of the application and their equivalent technologies, the application also intends to include these modifications and variations.
Claims
1. A dosing device, characterized in that: include: A mixing tank (1) and a stirring device; The stirring device is arranged on the mixing tank (1), and the stirring end of the stirring device is located inside the mixing tank (1); The liquid outlet of the mixing tank (1) is provided with a metering pump (16), and the liquid outlet of the mixing tank (1) is connected to the bioreactor (3) via the metering pump (16); The dosing device further comprises an addition tank (2); The liquid outlet of the metering pump (16) is connected to the bioreactor (3) through the addition tank (2); The adding tank (2) is provided with a return pipe (20), and the two ends of the return pipe (20) are respectively connected to the mixing tank (1) and the adding tank (2), the height of the liquid outlet end of the mixing tank (1) is lower than the height of the liquid outlet end of the return pipe (20), and the height of the liquid inlet end of the adding tank (2) is lower than the height of the liquid inlet end of the return pipe (20).
2. The dosing device according to claim 1, characterized in that: A diversion barrel (11) is provided inside the mixing tank (1); The upper and lower ends of the guide barrel (11) are connected, a baffle (12) is provided at the opening of the lower end of the guide barrel (11), and the stirring end of the stirring device extends into the interior of the guide barrel (11) through the opening of the upper end of the guide barrel (11).
3. The dosing device according to claim 2, characterized in that: An annular plate is coaxially provided on the outer side wall of the guide barrel (11), and the guide barrel (11) is connected to the inner side wall of the mixing tank (1) via the annular plate.
4. The dosing device according to claim 3, characterized in that: The upper end surface of the ring plate is an inclined surface, and the height of the upper end surface of the ring plate away from one end of the guide barrel (11) is greater than the height of the upper end surface of the ring plate close to one end of the guide barrel (11), and the height of the upper end surface of the ring plate close to one end of the guide barrel (11) is greater than the height of the opening of the upper end of the guide barrel (11), or the height of the upper end surface of the ring plate close to one end of the guide barrel (11) is flush with the height of the opening of the upper end of the guide barrel (11).
5. The dosing device according to claim 1, characterized in that: It also includes a plurality of reagent tanks, the liquid outlet ends of the reagent tanks being in communication with the interior of the mixing tank (1).
6. The dosing device according to claim 5, characterized in that: The liquid outlet end of the reagent tank is provided with a valve.
7. The dosing device according to claim 1, characterized in that: The mixing tank (1) is provided with an ORP meter (22), a pH meter (23) and a thermometer (24); The probe of the ORP meter (22), the probe of the pH meter (23) and the probe of the thermometer (24) are all located inside the mixing tank (1).
8. The dosing device according to claim 1, characterized in that: An electric heating pipe (18) is provided inside the mixing tank (1).
9. The dosing device according to claim 1, characterized in that: A waste liquid discharge port is provided at the bottom of the mixing tank (1), and a sewage valve (25) is provided at the waste liquid discharge port.