A dry powder medicament hydraulic mixing and dosing device and method thereof

Abstract

The application discloses a kind of dry powder medicament hydraulic mixing adding device and method thereof, for adding dry powder medicament to the sewage of bioreactor, including mixer, feed assembly, mixing assembly and reflux assembly, the mixer has a mixing cavity, the discharge end of the feed assembly is communicated with the mixing cavity, one end of the mixing assembly is communicated with the mixing cavity, and the other end is used to be communicated with bioreactor, to introduce the material in mixer into bioreactor, one end of the reflux assembly is communicated with mixer, and the other end is used to be communicated with bioreactor;The reflux assembly includes water inlet pipe, one end of the water inlet pipe is communicated with the mixing cavity, the other end of the water inlet pipe extends into bioreactor;Solve the technical problem that prior art adds medicament aqueous solution to treat sewage, needs to be prepared in advance, and the process is troublesome.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, specifically relates to a dry powder medicament hydraulic mixing adding device and method thereof. BACKGROUND

[0002] With the development of economy and the increase of small and medium-sized enterprises, most sewage treatment plants need to upgrade and reform the original process, and most of them achieve the standard discharge of effluent by adding a small amount of medicament, and the medicament is mainly in the form of dry powder preparation, which is then added to the reaction tank or advanced treatment tank in the form of powder or solution.

[0003] Most of the current dry powder adding devices directly add medicament to the reaction tank, and the medicament is easy to accumulate on the surface of the sewage, the medicament dissolves slowly, and the sewage treatment effect is poor. In order to solve the above problems, the medicament is usually made into an aqueous solution, and then the aqueous solution is added to the sewage tank. Although the sewage treatment effect is good, it needs to be prepared in advance, and the process is troublesome. SUMMARY

[0004] The purpose of the present application is to overcome the above technical deficiencies, and provide a dry powder medicament hydraulic mixing adding device to solve the technical problem of the prior art that adding aqueous solution of medicament to treat sewage needs to be prepared in advance and the process is troublesome.

[0005] In order to achieve the above technical purpose, the technical scheme of the present application provides a dry powder medicament hydraulic mixing adding device for adding dry powder medicament to sewage in a biological reactor, which comprises a mixer, a feeding assembly, a mixing assembly and a reflux assembly. The mixer has a mixing cavity. The discharge end of the feeding assembly is in communication with the mixing cavity. One end of the mixing assembly is in communication with the mixing cavity, and the other end is used to communicate with the biological reactor to guide the material in the mixer into the biological reactor. One end of the reflux assembly is in communication with the mixer, and the other end is used to communicate with the biological reactor. The reflux assembly comprises a water inlet pipe. One end of the water inlet pipe is in communication with the mixing cavity, and the other end of the water inlet pipe extends into the biological reactor to guide the sewage in the biological reactor into the mixing cavity.

[0006] The technical scheme of the present application also provides a dry powder medicament adding method, which comprises the above-mentioned dry powder medicament hydraulic mixing adding device, comprising:

[0007] Step 1: continuously adding dry powder medicament outside the biological reactor, leading out the sewage in the biological reactor, and continuously impacting the dry powder medicament to make the sewage and the dry powder medicament fully mixed, and preparing a medicament solution;

[0008] Step 2: the prepared medicament solution is introduced into the bioreactor again, so that the medicament solution is mixed with the sewage in the bioreactor to realize the phosphorus removal treatment process of the sewage in the bioreactor;

[0009] Step 3: detecting the total phosphorus value of the influent and effluent of the bioreactor, and comparing the detected total phosphorus value with the set value respectively;

[0010] Step 4: when the detected total phosphorus value is greater than the set value, the feeding speed of the dry powder medicament in step 1 is increased;

[0011] Step 5: when the total phosphorus value of the effluent of the bioreactor is lower than the set value, the treatment is completed.

[0012] Compared with the prior art, the beneficial effects of the present application include: under the action of gravity, the sewage in the bioreactor enters the mixer through the influent pipe, and the medicament in the mixer is mixed with the sewage during the feeding process, so that the process of preparing the aqueous medicament solution is completed, and the aqueous medicament solution is introduced into the bioreactor through the mixing assembly, without the need for external water source, and the water in the bioreactor can be used to complete the process, saving water resources, and during work, only the medicament needs to be added to the feeding assembly, since the medicament entering the bioreactor is in the form of aqueous solution, the mixing is uniform, and the diffusion in the sewage is facilitated, the sewage treatment effect is good, and the technical problem of the need for pre-dissolution and preparation when adding the aqueous medicament solution to treat the sewage is solved.

[0013] Meanwhile, the feeding speed of the feeding assembly is positively linearly related to the total phosphorus value of the influent and effluent of the bioreactor, and through this feeding method, the phosphorus removal work of the sewage in the bioreactor can be accelerated, and the feeding speed is controllable, effectively avoiding the waste of dry powder medicament. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the embodiment of the present application. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0016] As Figure 1As shown, the present invention provides a dry powder agent hydraulic mixing and adding device for adding dry powder agents to the sewage in the bioreactor 500, comprising a mixer 200, a feeding component 100, a mixing component 300 and a reflux component 400. The mixer 200 has a mixing chamber, the discharge end of the feeding component 100 is connected to the mixing chamber, one end of the mixing component 300 is connected to the mixing chamber, and the other end is used to be connected to the bioreactor 500, so as to introduce the material in the mixer 200 into the bioreactor 500, and one end of the reflux component 400 is connected to the mixer 200, and the other end is used to be connected to the bioreactor 500.

[0017] The mixer 200 in this embodiment is used to place and mix dry powder medicine and sewage. Specifically, the feeding component 100 introduces the dry powder medicine into the mixer 200, and the water inlet pipe 410 introduces the sewage in the bioreactor 500 into the mixer 200. The sewage and the dry powder medicine contact and mix together in the mixing chamber of the mixer 200.

[0018] Among them, the shape of the mixer 200 is not limited, as long as it has a mixing chamber inside. In order to achieve a better mixing effect of the dry powder agent and sewage, the mixer 200 in this embodiment is an inverted conical or cylindrical structure, and the water inlet pipe 410 is tangent to the arc-shaped inner wall of the mixer 200. The sewage entering the mixer 200 moves in a circular motion along the inner wall of the mixer 200, thereby causing the sewage inside the mixer 200 to perform centrifugal motion, so that the dry powder agent and sewage are mixed more evenly.

[0019] It is understandable that the structure of the mixer 200 is not limited to the above structure, as long as it is a structure in the art that can achieve a better mixing effect of the dry powder agent and sewage.

[0020] The feeding assembly 100 in this embodiment includes a hopper 110, a feed barrel 120, a screw 130, a reduction motor 140 and a discharge pipe 150. The hopper 110 is located directly above the feed barrel 120. The interior of the hopper 110 is connected to the opening set above the feed barrel 120. The screw 130 is coaxially built into the feed barrel 120. The screw 130 is rotatably connected to the feed barrel 120. The reduction motor 140 and the discharge pipe 150 are respectively located at both ends of the screw 130. The output shaft of the reduction motor 140 is connected to the screw 130. One end of the discharge pipe 150 is connected to the feed barrel 120, and the other end of the discharge pipe 150 is connected to the mixing chamber.

[0021] The hopper 110 mainly serves to receive powdered medicines. The conical structure of the hopper 110 facilitates pouring bagged powdered medicines into the feeding barrel 120 .

[0022] The feeding barrel 120 is horizontally placed, the two ends of the screw 130 are rotationally connected with the feeding barrel 120 through bearings, the screw 130 is driven to rotate by the reduction motor 140, the process of conveying the dry powder medicament is realized, and the dry powder medicament is guided into the mixer 200 through the discharge pipe 150.

[0023] It can be understood that the feeding assembly 100 in the embodiment is not limited to the above structure, as long as the dry powder medicament can be guided into the mixing cavity of the mixer 200.

[0024] The mixing assembly 300 in the embodiment includes a pump 310, a first connecting pipe 320 and a second connecting pipe 330, one end of the first connecting pipe 320 is in communication with the water inlet end of the pump 310, the other end of the first connecting pipe 320 is in communication with the bottom of the mixing cavity, one end of the second connecting pipe 330 is in communication with the water outlet end of the pump 310, and the other end of the second connecting pipe 330 is in communication with the top of the bioreactor 500.

[0025] The pump 310 provides power to guide the sewage and the dry powder medicament in the mixing cavity into the bioreactor through the first connecting pipe 320 and the second connecting pipe 330, and the first connecting pipe 320 and the second connecting pipe 330 are in communication with the mixer 200 and the bioreactor 500 respectively.

[0026] The backflow assembly 400 in the embodiment includes a water inlet pipe 410, one end of the water inlet pipe 410 is in communication with the mixing cavity, and the other end of the water inlet pipe 410 extends into the bioreactor 500 to guide the sewage in the bioreactor 500 into the mixing cavity.

[0027] Since more sediment is deposited at the bottom of the bioreactor 500, the water inlet pipe 410 is in communication with the middle part of the bioreactor 500, and it can be understood that the water inlet pipe 410 is in communication with the inside of the bioreactor 500 as long as the above-mentioned flow guiding function is realized.

[0028] The water inlet pipe 410 is provided with a valve, and the water inlet pipe 410 is controlled by the valve.

[0029] The water inlet pipe 410 is in communication with the upper half of the mixing cavity.

[0030] In order to prevent the particulate impurities in the sewage in the bioreactor 500 from entering the mixer 200 and affecting the mixing effect of the dry powder medicament and the sewage, the backflow assembly 400 in the embodiment further includes a filter screen 430, and the filter screen 430 is installed at the water inlet end of the water inlet pipe 410.

[0031] In order to prevent the liquid level in the mixer 200 from being too high, causing the sewage to flow back into the discharge pipe 150, the dry powder medicament discharged in the discharge pipe 150 is subjected to a force opposite to its feeding direction, and the discharge pipe 150 is prone to be blocked, and the dry powder medicament cannot be introduced into the mixer 200. The backflow assembly 400 in the embodiment further comprises a liquid level meter 420 installed in the mixer 200 for detecting the liquid level in the mixer 200. When the liquid level in the mixer 200 is too high, the water inlet pipe 410 is closed, the liquid level in the mixer 200 gradually decreases, and then the water inlet pipe 410 is opened again, thereby playing a protective role.

[0032] In order to make the mixing effect of the dry powder medicament and the sewage better, the backflow assembly 400 in the embodiment further comprises a backflow pipe 440, one end of the backflow pipe 440 being communicated with the mixing assembly 300, and the other end of the backflow pipe 440 being communicated with the mixing chamber. Specifically, the liquid in the second connecting pipe 330 is shunted to the backflow pipe 440 and finally introduced into the mixing chamber, so that the dry powder medicament and the sewage in the mixing chamber are mixed more uniformly.

[0033] In order to make the mixing effect of the dry powder medicament and the sewage better, the backflow pipe 440 and the water inlet pipe 410 are connected to the mixer 200 in a tangential direction along the inner wall of the mixer 200, thereby accelerating the stirring process of the sewage in the mixer 200.

[0034] The backflow pipe 440 is provided with a backflow switch, and the flow rate in the backflow pipe 440 can be controlled through the backflow switch.

[0035] Working process: The dry powder medicament is added to the hopper 110, the speed reducer 140 drives the screw rod 130 to rotate, and the relative movement between the screw rod 130 and the feeding cylinder 120 conveys the dry powder medicament to the discharge pipe 150. The dry powder medicament is introduced into the mixing chamber of the mixer 200 through the discharge pipe 150. Under the action of gravity, the sewage in the bioreactor 500 is introduced into the mixing chamber through the water inlet pipe 410, and the dry powder medicament in the mixing chamber is washed, so that the dry powder medicament is uniformly dissolved in the sewage, and then introduced into the bioreactor 500 through the mixing assembly 300. The water flow in the bioreactor 500 moves to each position in the bioreactor 500. At the same time, the sewage in the second connecting pipe 330 is shunted to the mixer 200 through the backflow pipe 440, thereby accelerating the mixing speed of the dry powder medicament and the sewage in the mixer 200.

[0036] Compared with the prior art, the dry powder medicament hydraulic mixing adding device combines the medicament adding process with the process of preparing the aqueous solution of the medicament in advance, has good sewage treatment effect, and is convenient in treatment process.

[0037] The application further provides a dry powder medicament adding method comprising the dry powder medicament hydraulic mixing adding device.

[0038] Step 1: continuously adding the dry powder medicament outside the biological reactor 500, leading out the sewage in the biological reactor 500, and continuously impacting the dry powder medicament to be added, so that the sewage and the dry powder medicament are fully mixed, and a medicament solution is prepared.

[0039] In the embodiment, the biological reactor 500 is operated in the mode of aeration, stirring and static settling, the dry powder medicament is added in the feeding assembly 100, the dry powder medicament is led into the mixer 200 through the feeding assembly 100, meanwhile, the sewage in the biological reactor is led into the mixer 200 through the water inlet pipe 410, the dry powder medicament in the mixer 200 is impacted, the sewage and the dry powder medicament are effectively mixed, and the medicament solution is prepared, and the feeding speed of the dry powder medicament into the mixer 200 is related to the rotating speed of the speed reducer 140 in the feeding assembly 100.

[0040] Step 2: leading the prepared medicament solution into the biological reactor 500 again, so that the medicament solution and the sewage in the biological reactor 500 are mixed and reacted, and the phosphorus removal treatment process of the sewage in the biological reactor 500 is realized.

[0041] In the embodiment, the prepared medicament solution is led into the biological reactor 500 through the pump 310, the first connecting pipe 320 and the second connecting pipe 330, biological and chemical reactions of the sewage in the biological reactor 500 are completed, and the purpose of phosphorus removal is achieved.

[0042] Step 3: detecting the total phosphorus value of the inlet water and the outlet water of the biological reactor, and comparing the total phosphorus value with a set value respectively.

[0043] Step 4: when the measured total phosphorus value of the inlet water or the outlet water is greater than the set value, the feeding speed of the dry powder medicament in step 1 is increased.

[0044] The set value of the inlet water is the design value of the inlet water into the biological reactor 500, and the set value of the outlet water is the phosphorus value of the sewage in the biological reactor 500 reaching the discharge standard.

[0045] Specifically, the phosphorus content of the sewage in the bioreactor 500 can be detected by means available in the art. When the detected value exceeds the set value, the rotation speed of the deceleration motor is increased, thereby increasing the feeding speed of the mixer 200, i.e. the feeding amount of the dry powder medicament per unit time, increasing the medicament concentration in the mixer 200, and thereby speeding up the sewage treatment effect in the bioreactor 500.

[0046] Step 5: When the measured phosphorus content of the effluent of the bioreactor 500 is not greater than the set value, the treatment is completed.

[0047] The feeding speed of the dry powder medicament in step 1 is positively linearly correlated with the measured total phosphorus content in step 3. By this dosing method, the phosphorus removal work of the sewage in the bioreactor 500 can be accelerated, and at the same time, the feeding speed is controlled according to the actual amount of dry powder medicament required for treating the sewage, effectively avoiding the waste of dry powder medicament.

[0048] The specific embodiments of the application described above do not constitute a limitation on the scope of protection of the application. Any various other corresponding changes and modifications made according to the technical concept of the application shall be included in the scope of protection of the claims of the application.

Claims

1. A dry powder medicament hydraulic mixing and dosing device for dosing dry powder medicament into sewage water of a biological reactor, characterized in that, The application relates to a device for treating wastewater in a biological reactor, which comprises a mixer, a feeding assembly, a mixing assembly and a backflow assembly, wherein the mixer has a mixing cavity, the feeding assembly is connected with the mixing cavity, one end of the mixing assembly is connected with the mixing cavity, and the other end is used for being connected with the biological reactor to guide the material in the mixer into the biological reactor, and one end of the backflow assembly is connected with the mixer, and the other end is used for being connected with the biological reactor. The backflow assembly comprises a water inlet pipe, one end of the water inlet pipe is connected with the mixing cavity, and the other end of the water inlet pipe extends into the biological reactor to guide the wastewater in the biological reactor into the mixing cavity. The mixer is an inverted conical or cylindrical structure, the water inlet pipe is tangent to the arc-shaped inner wall of the mixer. The backflow assembly further comprises a backflow pipe, one end of the backflow pipe is connected with the mixing assembly, the other end of the backflow pipe is connected with the mixing cavity, the connection between the backflow pipe and the mixer is in the tangential direction of the inner wall of the mixer, a backflow switch is arranged on the backflow pipe, and the flow in the backflow pipe can be controlled through the backflow switch. The feeding assembly comprises a hopper, a feeding cylinder, a screw rod, a speed reduction motor and a discharge pipe, the hopper is located directly above the feeding cylinder, the interior of the hopper is connected with an opening arranged above the feeding cylinder, the screw rod is coaxially arranged in the feeding cylinder, the screw rod is rotationally connected with the feeding cylinder, the speed reduction motor and the discharge pipe are respectively arranged at the two ends of the screw rod, the output shaft of the speed reduction motor is connected with the screw rod, one end of the discharge pipe is connected with the feeding cylinder, and the other end of the discharge pipe is connected with the mixing cavity.

2. The dry powder medicament hydraulically mixing and dosing device according to claim 1, characterized in that, The mixing assembly comprises a pump, a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is connected with the water inlet end of the pump, the other end of the first connecting pipe is connected with the bottom of the mixing cavity, one end of the second connecting pipe is connected with the water outlet end of the pump, and the other end of the second connecting pipe is used for being connected with the top of the biological reactor.

3. The dry powder medicament hydraulically mixing and dosing device according to claim 1, characterized in that, The water inlet pipe is connected with the upper half of the mixing cavity.

4. The dry powder medicament hydraulically mixing and dosing device according to claim 1, characterized in that, The backflow assembly further comprises a filter screen, and the filter screen is arranged on the water inlet end of the water inlet pipe.

5. The dry powder medicament hydraulically mixing and dosing device according to claim 1, characterized in that, The backflow assembly further comprises a liquid level meter, the liquid level meter is arranged on the water inlet pipe and located in the mixing cavity, and a valve is arranged on the water inlet pipe.

6. The dry powder medicament hydraulically mixed and added device according to claim 1, characterized in that, The application further discloses a wastewater treatment method, which comprises the following steps:

7. A method for dry powder medicament dosing, comprising the dry powder medicament hydrodynamic mixing dosing device according to any one of claims 1 to 6, characterized in that, Step 1: continuously adding dry powder medicaments outside the biological reactor, guiding the wastewater in the biological reactor out, continuously impacting the dry powder medicaments, fully mixing the wastewater and the dry powder medicaments, and preparing a medicament solution; Step 2: guiding the prepared medicament solution into the biological reactor, mixing and reacting the medicament solution with the wastewater in the biological reactor, and realizing the phosphorus removal treatment process of the wastewater in the biological reactor; Step 3: detecting the total phosphorus content of the water inlet and the water outlet of the biological reactor, and comparing the detected total phosphorus content with a set value respectively; Step 4: when the detected total phosphorus content is greater than the set value, the feeding speed of the dry powder medicaments in step 1 is increased; Step 5: when the total phosphorus content of the water outlet of the biological reactor is lower than the set value of the water outlet, the treatment is completed. ​ 8. The dry powder medicament dosing method of claim 7, wherein, The feed rate of the dry powder medicament in step 1 is positively linearly correlated with the total phosphorus value measured in step 3.

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