Suction type stirring device for pneumatic conveying, mixing and stirring

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a suction type stirring device for pneumatic conveying, mixing and stirring, which comprises a preparation tank, a speed reducer is mounted at the upper end of the preparation tank, a motor is mounted at the input end of the speed reducer, and a stirring shaft is obliquely mounted at the output end of the speed reducer. And stirring blades are installed at the bottom end of the stirring shaft, and a feeding hopper is installed on the side, away from the speed reducer, of the upper end of the preparation tank. Air in the feeding hopper is pumped away through the vacuum pump, the second air suction pipe and the first air suction pipe, and pressure difference is formed between the material suction pipe and the material suction nozzle, so that powder in the powder bin is sucked into the feeding hopper, leakage of the powder cannot be caused, and conveying is safe; the stirring blades are driven by the stirring shaft to obliquely rotate, so that materials can form a spiral movement track, uniform mixing of powder and liquid is realized, local concentration difference is reduced, and a layering phenomenon is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely is a kind of inhaled stirring device for pneumatic conveying mixed stirring. BACKGROUND

[0002] Sewage contains various pollutants, such as organic matter, suspended solids, heavy metals and nitrogen and phosphorus, etc. If these substances are directly discharged without treatment, it will seriously damage the ecological balance. The dosing process converts harmful substances into harmless or easily treated substances through chemical reaction. For example, adding powdered flocculant to promote the coagulation and sedimentation of suspended solids, bactericide to kill bacteria, and adjusting agent to control water quality pH value, thereby significantly improving the purification effect. By adding powder medicament, it is ensured that the discharge meets the standard and reduces the pollution to the natural environment.

[0003] Chinese patent discloses a dry powder mixing and dosing device applied to sewage treatment (authorized publication number CN212188770U). The patent technology can stably, efficiently and safely mix and pretreat the sewage treatment powder to be added, and complete the stable and high-quality treatment of sewage in the sewage treatment process. It is suitable for wastewater treatment and disinfection systems in raw water pretreatment and wastewater treatment systems, circulating cooling systems, chemical additive dosing systems, medical electronics and other industries. It has strong practicality, but the powder conveying is not convenient, which is easy to cause leakage, and the powder cannot be fully mixed with sewage. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of inhaled stirring device for pneumatic conveying mixed stirring to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An inhaled stirring device for pneumatic conveying mixed stirring includes a preparation tank. A speed reducer is installed at the upper end of the preparation tank. A motor is installed at the input end of the speed reducer. A stirring shaft is installed at the output end of the speed reducer. Stirring blades are installed at the bottom end of the stirring shaft. A feeding hopper is installed at the upper end of the preparation tank away from the speed reducer. A first air suction pipe is fixedly connected to the upper end of the feeding hopper. A material suction pipe is fixedly connected to the lower side of one end of the feeding hopper. A hose joint is arranged at the lower end of the material suction pipe. A material suction nozzle is installed at the lower end of the hose joint. The material suction nozzle is inserted into the powder bin.

[0007] As a further scheme of the utility model, a liquid inlet is arranged at the upper end of the preparation tank close to the speed reducer. A liquid outlet is arranged at the lower side of one end of the preparation tank.

[0008] As a further scheme of the utility model: the included angle between the stirring shaft and the vertical direction is 15°-20°.

[0009] As a further scheme of the utility model: the first air suction pipe is provided with a filter at one end, the filter is provided with a second air suction pipe at one end, and the lower end of the second air suction pipe is provided with a vacuum pump.

[0010] As a further scheme of the utility model: the inner side of the feeding hopper is provided with a filter screen at the upper end, and a feeder is arranged between the feeding hopper and the preparation tank.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model through vacuum pump, second air suction pipe and first air suction pipe remove the air in the feeding hopper, form the pressure difference between the suction pipe and the suction nozzle, thereby suck the powder in the powder bin into the feeding hopper, and will not cause the powder to leak, and the conveying is safe.

[0013] The stirring shaft drives the stirring blade to tilt and rotate, can make the material form the spiral motion track, thereby realizes the uniform mixing of the powder and the liquid, reduces the local concentration difference, avoids the stratification phenomenon, simultaneously still can greatly shorten the mixing time, improves the production efficiency, is applicable to the scene that the powder viscosity is big, density is big, particle is fine. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a kind of structure schematic view of suction type stirring device for pneumatic conveying mixing and stirring.

[0015] Figure 2 It is a kind of structure schematic view of feeding hopper in suction type stirring device for pneumatic conveying mixing and stirring.

[0016] In the drawing: 1, preparation tank;2, stirring shaft;3, liquid discharge port;4, stirring blade;5, speed reducer;6, liquid inlet;7, motor;8, feeding hopper;9, first air suction pipe;10, suction pipe;11, filter;12, hose joint;13, second air suction pipe;14, suction nozzle;15, vacuum pump;16, powder bin;17, feeder;18, filter screen. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-2The utility model discloses an inhaled stirring device for pneumatic conveying mixed stirring, including preparation jar 1, the upper end of preparation jar 1 is installed with speed reducer 5, the input of speed reducer 5 is installed with motor 7, and the output of speed reducer 5 is installed with stirring shaft 2 obliquely, the bottom end of stirring shaft 2 is installed with stirring vane 4, the upper end of preparation jar 1 is installed with feeding hopper 8 away from one side of speed reducer 5, the upper end of feeding hopper 8 is fixedly connected with first air suction pipe 9, and the downside of one end of feeding hopper 8 is fixedly connected with suction pipe 10, the lower end of suction pipe 10 is provided with hose joint 12, the lower end of hose joint 12 is installed with suction nozzle 14, suction nozzle 14 is inserted in powder bin 16, and the powder for water treatment is filled in powder bin 16, for example dry powder medicament, curing medicament, after the air in feeding hopper 8 is sucked through first air suction pipe 9, pressure difference is formed between suction pipe 10 and suction nozzle 14, the powder in powder bin 16 is sucked into suction nozzle 14 due to the pressure difference, then enters feeding hopper 8 through hose joint 12 and suction pipe 10 in turn, and finally enters preparation jar 1, to treat the sewage in preparation jar 1.

[0018] In Figure 1 , the upper end of preparation jar 1 is provided with liquid inlet 6 near one side of speed reducer 5, and the downside of one end of preparation jar 1 is provided with liquid outlet 3, the sewage to be treated can be added into preparation jar 1 through liquid inlet 6, and the treated water can be discharged through liquid outlet 3.

[0019] In Figure 1 , the angle between stirring shaft 2 and the vertical direction is 15°-20°, preferably, the angle between stirring shaft 2 and the vertical direction is 18°, the stirring vane 4 is obliquely rotated by stirring shaft 2, which can make the material form a spiral motion track, thereby realizing more uniform mixing, reducing local concentration difference and avoiding stratification phenomenon; meanwhile, the mixing time can be greatly shortened, and the production efficiency can be improved; due to the large inertial force generated by the powder under the oblique rotation of the stirring vane 4 and the reduced slot phenomenon, the mixing scene of the powder with large viscosity, large density and fine particles, such as solid-solid, solid-liquid and solid combination, is suitable.

[0020] In Figure 1 , one end of first air suction pipe 9 is installed with filter 11, one end of filter 11 is installed with second air suction pipe 13, the lower end of second air suction pipe 13 is installed with vacuum pump 15, after starting vacuum pump 15, the air in feeding hopper 8 is sucked through second air suction pipe 13 and first air suction pipe 9 in turn, thereby realizing material suction, and the powder leakage is avoided, and the conveying is safe; the air in the pipeline can be filtered through filter 11, thereby avoiding damaging vacuum pump 15.

[0021] In Figure 2The upper end of the inner side of the feeding hopper 8 is provided with a filter screen 18, and a feeder 17 is installed between the feeding hopper 8 and the preparation tank 1, so that the powder in the feeding hopper 8 cannot enter into the first suction pipe 9 reversely through the filter screen 18, and the pipeline is prevented from being blocked.

[0022] The working principle of the utility model is as follows: firstly, the sewage to be treated is added into the preparation tank 1 through the liquid inlet 6, then the motor 7 is started to drive the speed reducer 5 to rotate, the speed reducer 5 drives the stirring shaft 2 and the stirring blade 4 to tilt and rotate together, and the sewage in the preparation tank 1 is stirred; at the same time, the vacuum pump 15 is started, the vacuum pump 15 draws the air in the feeding hopper 8 out through the second suction pipe 13 and the first suction pipe 9, so that a pressure difference is generated between the suction pipe 10 and the suction nozzle 14, the powder in the powder bin 16 is sucked into the suction nozzle 14 due to the pressure difference, then enters into the feeding hopper 8 through the hose joint 12 and the suction pipe 10 in sequence, and after the feeder 17 is opened, the powder enters into the preparation tank 1, the powder is dissolved into the sewage through the rotation of the stirring blade 4, and the sewage in the preparation tank 1 is treated; after the treatment is completed, the liquid outlet 3 is opened, and the treated water can be discharged.

[0023] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A suction-type stirring device for pneumatic conveying and mixing, comprising a preparation tank (1), characterized in that, A speed reducer (5) is installed at the upper end of the preparation tank (1). A motor (7) is installed at the input end of the speed reducer (5), and a stirring shaft (2) is installed at an angle at the output end of the speed reducer (5). A stirring blade (4) is installed at the bottom end of the stirring shaft (2). A feeding hopper (8) is installed on the side of the upper end of the preparation tank (1) away from the speed reducer (5). A first suction pipe (9) is fixedly connected to the upper end of the feeding hopper (8), and a suction pipe (10) is fixedly connected to the lower side of one end of the feeding hopper (8). A hose connector (12) is provided at the lower end of the suction pipe (10), and a suction nozzle (14) is installed at the lower end of the hose connector (12). The suction nozzle (14) is inserted into the powder silo (16).

2. The suction-type stirring device for pneumatic conveying and mixing according to claim 1, characterized in that, The preparation tank (1) has an inlet (6) on the upper end near the reducer (5) and a drain (3) on the lower side of one end of the preparation tank (1).

3. The suction-type stirring device for pneumatic conveying and mixing according to claim 1, characterized in that, The angle between the stirring shaft (2) and the vertical direction is 15° to 20°.

4. The suction-type stirring device for pneumatic conveying and mixing according to claim 1, characterized in that, A filter (11) is installed at one end of the first suction pipe (9), a second suction pipe (13) is installed at one end of the filter (11), and a vacuum pump (15) is installed at the lower end of the second suction pipe (13).

5. The suction-type stirring device for pneumatic conveying and mixing according to claim 1, characterized in that, A filter screen (18) is provided on the upper inner side of the feeding hopper (8), and a feeder (17) is installed between the feeding hopper (8) and the preparation tank (1).

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