Mixing and stirring device for adding powder medicament for sewage treatment

Abstract

The utility model belongs to the technical field of domestic sewage and industrial sewage treatment, and discloses a mixing and stirring device for feeding powder medicaments for sewage treatment, which comprises a closed feeding bin and a mixing and stirring bin, the feeding bin is arranged at the upper part of one side wall of the mixing and stirring bin, and a through hole is arranged at the adjacent part of the feeding bin and the mixing and stirring bin; the feeding bin is provided with a water inlet pipe and a feeding pipe; a stirrer is arranged in the mixing and stirring bin, a dustproof baffle is further arranged in the mixing and stirring bin, the dustproof baffle is in an inverted-L shape and comprises a transverse wall and a vertical wall, one end of the transverse wall abuts against the top of the through opening, and the vertical wall is far away from one side of the through opening and extends towards the lower portion of the mixing and stirring bin. According to the utility model, the water inlet pipe and the feed pipe are used for respectively feeding wastewater to be treated and a powder medicament into the closed feeding bin, the wastewater to be treated fully brings the powder medicament into the mixing and stirring bin, meanwhile, a dustproof baffle is arranged in the mixing and stirring bin to prevent dust from flying, and the wastewater added with the medicament is uniformly mixed in the mixing and stirring bin.

Description

Technical Field

[0001] The utility model belongs to the technical field of domestic sewage and industrial sewage treatment, and particularly relates to a mixing and stirring device for adding powder-like medicaments for sewage treatment. Background Art

[0002] The core content of the traditional flocculation precipitation process is to form alum flowers from solid wastes in wastewater by adding flocculants and coagulant aids. Its essence is to help the particulate matters in wastewater form large colloidal aggregates, making it easier for gravity precipitation. When mixing with powder-like medicaments in the traditional flocculation precipitation technology, fine particles with strong adsorption capacity, such as activated carbon, carbon powder, metal particles, etc., which serve as the core of the large colloidal aggregates, are directly added to the wastewater, thus combining with the traditional flocculation process. Through the strong adsorption voids of the powder particle medicaments themselves, the ability to adsorb solid wastes in the wastewater is increased. At the same time, the core of the large colloidal aggregates formed in cooperation with the flocculants and coagulant aids is more stable and dense, thus having better precipitation ability.

[0003] However, the process of adding powder particle medicaments is not compatible with the traditional dosing unit. First, due to the dispersibility of the dust medicaments during transportation, because of the height difference in gravity transportation, the open-air dosing of general dosing systems cannot prevent the dispersion of powder particle medicaments, resulting in serious fly ash phenomenon at the dosing port. This seriously affects the operation of personnel, and at the same time, the dispersed medicaments increase the cost of adding medicaments, causing unnecessary waste. Second, there is a problem of uneven mixing. For example, a kind of oil-containing sewage treatment system disclosed in the Chinese utility model patent CN205023920U is provided with a feeding machine for adding powder flocculant into the tank body and a stirrer for mixing the powder flocculant with the oil-containing sewage in the mixing and stirring tank; when mixing with the powder particle medicaments, if the wastewater directly enters the mixing and stirring tank, since the dust medicaments cannot be evenly distributed in the stirring tank in the first place, although there is the action of the stirrer, it is also very easy to generate a short-circuit phenomenon, resulting in uneven stirring. Content of the Utility Model

[0004] To solve the above deficiencies in the prior art, the utility model provides a mixing and stirring device for adding powder-like medicaments for sewage treatment, aiming at the addition of powder particle medicaments, avoiding the dispersion and dust explosion of the powder medicaments, and achieving uniform mixing.

[0005] To achieve the above technical objectives, the technical solution adopted by the utility model is:

[0006] A mixing and stirring device for adding powdery agents in sewage treatment, comprising a closed feeding bin and a mixing and stirring bin. The feeding bin is arranged at the upper part of one side wall of the mixing and stirring bin, and a through hole is provided at the adjacent position of the feeding bin and the mixing and stirring bin; the feeding bin is provided with a water inlet pipe and a feeding pipe; a stirrer is arranged in the mixing and stirring bin, and a dust-proof baffle is also arranged in the mixing and stirring bin. The dust-proof baffle is in an inverted "L" shape, including a horizontal wall and a vertical wall. One end of the horizontal wall abuts against the top of the through hole, and the vertical wall is on the side away from the through hole and extends downward to the lower part of the mixing and stirring bin.

[0007] Further, the feeding pipe is arranged vertically.

[0008] Further, the dust-proof baffle is made of explosion-proof material.

[0009] Further, a diffusion and diversion plate is arranged at the end of the vertical wall of the dust-proof baffle. The diffusion and diversion plate is arranged on the side away from the horizontal wall, and the diffusion and diversion plate forms an angle of 10-45° with the vertical wall of the dust-proof baffle.

[0010] Preferably, the diffusion and diversion plate forms an angle of 20° with the vertical wall of the dust-proof baffle.

[0011] Another preference is that the diffusion and diversion plate forms an angle of 30° with the vertical wall of the dust-proof baffle.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The mixing and stirring device for adding powdery agents in sewage treatment of the present utility model is for adding powdery and granular agents. The water to be treated and the powdery agent are respectively added to the closed feeding bin through the water inlet pipe and the feeding pipe. The water to be treated fully brings the powdery agent into the mixing and stirring bin. At the same time, a dust-proof baffle is arranged in the mixing and stirring bin to prevent dust from flying. The wastewater after adding the agent is mixed evenly in the mixing and stirring bin.

[0014] The mixing and stirring device for adding powdery agents in sewage treatment of the present utility model is provided with a diffusion and diversion plate at the end of the dust-proof baffle, which naturally guides the wastewater after adding the agent to the middle and lower parts of the mixing and stirring bin where the stirrer is located, so as to make the stirring reaction more uniform and prevent the occurrence of short-circuit phenomenon. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a structural schematic diagram of the device.

[0017] Reference numerals: 1 - water inlet pipe, 2 - feed pipe, 3 - dust-proof baffle, 4 - diffusion guide plate, 5 - feeding bin, 6 - mixing and stirring bin, 7 - through hole. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0019] A mixing and stirring device for adding powdered agents in sewage treatment, as Figure 1 shown, includes a closed feeding bin 5 and a mixing and stirring bin 6. The feeding bin 5 is arranged at the upper part of one side wall of the mixing and stirring bin 6. A through hole 7 is provided at the adjacent position of the feeding bin 5 and the mixing and stirring bin 6. The feeding bin 5 is provided with a water inlet pipe 1 and a feed pipe 2. Preferably, the feed pipe 2 is arranged vertically. A dust-proof baffle 3 is arranged in the mixing and stirring bin 6. The dust-proof baffle 3 is in an inverted "L" shape, including a horizontal wall and a vertical wall. One end of the horizontal wall abuts against the top of the through hole 7, and the side of the vertical wall away from the through hole extends into the mixing and stirring bin 6. A mixer is arranged in the mixing and stirring bin 6. The wastewater to be treated enters the feeding bin 5 through the water inlet pipe 1, and the powdered agent is added into the feeding bin 5 through the feed pipe 2. The water flow maintains a relatively high flow rate in the relatively narrow space in the feeding bin 5, and the powdered agent added to the water flow is fully brought to the mixing and stirring bin 6. Under the blocking action of the dust-proof baffle 3, the incoming water direction enters the mixing and stirring bin 6 vertically, and the dust-proof baffle 3 also controls the scattering of dust.

[0020] Preferably, the dust-proof baffle 3 is made of explosion-proof material. Further, a diffusion guide plate 4 is arranged at the end of the vertical wall of the dust-proof baffle 3. The diffusion guide plate 4 is arranged on the side away from the horizontal wall. The diffusion guide plate 4 forms an angle of 10 - 45° with the vertical wall of the dust-proof baffle 3. Preferably, the angle is 20° or 30°. The wastewater after adding the agent is naturally guided to the lower part of the mixing and stirring bin 6 where the mixer is located through the diffusion guide plate 4. Thus, the stirring reaction is more uniform.

[0021] Of course, the present utility model may also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A mixing and stirring device for adding powder-like agents in sewage treatment, characterized in that: It includes a sealed feeding bin (5) and a mixing and stirring bin (6). The feeding bin (5) is arranged at the upper part of one side wall of the mixing and stirring bin (6), and a through opening (7) is provided at the adjacent position between the feeding bin (5) and the mixing and stirring bin (6); the feeding bin (5) is provided with a water inlet pipe (1) and a feeding pipe (2); a mixer is arranged in the mixing and stirring bin (6), and a dust-proof baffle (3) is also arranged in the mixing and stirring bin (6). The dust-proof baffle (3) is in an inverted "L" shape, including a horizontal wall and a vertical wall. One end of the horizontal wall abuts against the top of the through opening (7), and the vertical wall is on the side away from the through opening and extends towards the lower part of the mixing and stirring bin (6).

2. The mixing and stirring device for adding powder agents used in sewage treatment according to claim 1, characterized in that: The feeding pipe (2) is arranged vertically.

3. The mixing and stirring device for adding powder medicaments for sewage treatment according to claim 1, characterized in that: The dust-proof baffle (3) is made of explosion-proof material.

4. The mixing and stirring device for adding powder-like agents used in sewage treatment according to claim 1 or 3, characterized in that: A diffusion and diversion plate (4) is arranged at the end of the vertical wall of the dust-proof baffle (3). The diffusion and diversion plate (4) is arranged on the side away from the horizontal wall, and the diffusion and diversion plate (4) forms an angle of 10 to 45° with the vertical wall of the dust-proof baffle (3).

5. The mixing and stirring device for adding powdery agents for sewage treatment according to claim 4, characterized in that: The diffusion and diversion plate (4) forms an angle of 20° with the vertical wall of the dust-proof baffle (3).

6. The mixing and stirring device for adding powdery agents for sewage treatment according to claim 4, characterized in that: The diffusion and diversion plate (4) forms an angle of 30° with the vertical wall of the dust-proof baffle (3).

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