Sewage separation mixer

Abstract

The utility model relates to a sewage separation mixer which is provided with a mixing barrel, the mixing barrel comprises an upper cylindrical barrel body and a lower conical barrel body, a feeding pipe is installed in the center of the upper end face of the cylindrical barrel body, and the lower end of the feeding pipe is located at the bottom of the conical barrel body. A spiral blade extending from the upper part of the cylindrical barrel body to the bottom of the conical barrel body is mounted on the feeding pipe, the side wall of the feeding pipe is connected with a dosing pipe for adding a flocculant solvent into the feeding pipe, the bottom of the conical barrel body is connected with a discharging pipe, and the discharging pipe is connected with a discharging pipe for discharging mixed wastewater to separation equipment. According to the utility model, a flocculant solvent is put into sewage to be mixed, and the sewage is stirred by utilizing the spiral blade to form a rotational flow effect in the flowing process of the sewage, so that the flocculant solvent is further mixed with the sewage, the mixing effect of the mixer is better improved, the dosage of a flocculant can be reduced, and the sewage treatment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage separation mixer. Background Art

[0002] In the sewage treatment process, before the sewage enters the subsequent separation equipment, it needs to be mixed with the sewage using a flocculant. Failure to pass through a mixer will affect the mixing effect and make it impossible for the separation equipment to completely separate.

[0003] Traditional mixers include pipeline mixers and tank mixers. Pipe mixers have poor mixing effects due to their short distance, and the baffles inside the mixer are prone to blockage by flocculent particles. Tank mixers are large in size, and the mixed sewage cannot produce fluid peristalsis inside the tank, which cannot achieve a better mixing effect. When sewage produces sediment in the tank, it is easy to accumulate and clog. Summary of the invention

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a sewage separation mixer which can better improve the mixing effect.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a sewage separation mixer, comprising a mixing barrel, the mixing barrel comprising an upper cylindrical barrel body and a lower conical barrel body, a feed pipe is installed at the center of the upper end surface of the cylindrical barrel body, the lower end of the feed pipe is located at the bottom of the conical barrel body, a spiral blade extending from the upper part of the cylindrical barrel body to the bottom of the conical barrel body is installed on the feed pipe, a dosing pipe for adding flocculant solvent into the feed pipe is connected to the side wall of the feed pipe, a discharge pipe is connected to the bottom of the conical barrel body, and the discharge pipe is connected to a discharge pipe for discharging the mixed wastewater to the separation equipment.

[0006] Furthermore, the outlet end of the discharge pipe is connected with a one-way valve to prevent the mixed sewage from flowing back into the mixing barrel.

[0007] In order to improve the mixing effect and reduce the amount of medicine used, the one-way valve pipeline is connected to a first flow regulating valve, the outlet end of the first flow regulating valve is connected to a three-way pipe, one of the outlet ends of the three-way pipe is connected to a second flow regulating valve, the second flow regulating valve is connected to a discharge pipe, and a return pipe is connected between the second outlet end of the three-way pipe and the upper side wall of the cylindrical barrel body.

[0008] The beneficial effects of the utility model are as follows: the utility model adds a flocculant solvent into sewage for mixing, and uses spiral blades to form a swirling effect in the sewage during the flow of the sewage to stir the sewage, so that the flocculant solvent and the sewage are further mixed, thereby better improving the mixing effect of the mixer, reducing the amount of flocculant used, and reducing the cost of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the figure: 1. mixing barrel, 1-1. cylindrical barrel body, 1-2. conical barrel body, 2. feed pipe, 3. spiral blade, 4. dosing pipe, 5. discharge pipe, 6. discharge pipe, 7. one-way valve, 8. first flow regulating valve, 9. three-way pipe, 10. second flow regulating valve, 11. return pipe. DETAILED DESCRIPTION

[0012] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0013] like Figure 1 A sewage separation mixer is shown, comprising a mixing barrel 1, a feed pipe 2 and a discharge pipe 6. The mixing barrel 1 comprises an upper cylindrical barrel body 1-1 and a lower conical barrel body 1-2. The feed pipe 2 is fixed at the center position of the upper end surface of the cylindrical barrel body 1-1. After the feed pipe 2 extends into the cylindrical barrel body 1-1, its lower end is located at the bottom of the conical barrel body 1-2. A spiral blade 3 is installed on the feed pipe 2. The spiral blade 3 extends downward from the upper part of the cylindrical barrel body 1-1 to the bottom of the conical barrel body 1-2. A dosing pipe 4 for adding flocculant solvent into the feed pipe 2 is connected to the side wall of the feed pipe 2, and a discharge pipe 5 is connected to the bottom of the conical barrel body 1-2.

[0014] The outlet end of the discharge pipe 5 is connected to a one-way valve 7 which prevents the mixed sewage from flowing back into the mixing barrel 1. The pipeline of the one-way valve 7 is connected to a first flow regulating valve 8. The outlet end of the first flow regulating valve 8 is connected to a three-way pipe 9. One of the outlet ends of the three-way pipe 9 is connected to a second flow regulating valve 10. The outlet end of the second flow regulating valve 10 is connected to the discharge pipe 6. A return pipe 11 is connected between the second outlet end of the three-way pipe 9 and the upper side wall of the cylindrical barrel body 1-1.

[0015] The sewage to be mixed is pressed into the mixing barrel 1 through the feed pipe 2, and the dissolved flocculant solution is added to the feed pipe 2 through the dosing pipe 4 to mix it with the sewage. After the mixed sewage flows to the bottom of the conical barrel body 1-2 of the mixing barrel 1 and is discharged, the sewage flows from bottom to top toward the upper cylindrical barrel body 1-1. In the process of the sewage flowing upward, the spiral blades 3 form a swirl effect on the sewage, thereby stirring the sewage, increasing the flow range of the sewage, and making it better mixed with the flocculant solution; at the same time, due to the different cross-sectional areas of the conical barrel body 1-2 and the cylindrical barrel body 1-1, the sewage flow rate changes, which further improves the mixing effect of the flocculant solution and the sewage.

[0016] The thoroughly mixed sewage is discharged from the discharge pipe 5. After passing through the one-way valve 7, the sewage flows through the first flow regulating valve 8 and is diverted through the three-way pipe 9. The sewage treatment volume required by the separation equipment is controlled by the second flow regulating valve 10 and then discharged from the discharge pipe 6 to the separation equipment. Since the treatment capacity of the separation equipment has certain limitations, the sewage flow entering the separation equipment is controlled by the second flow regulating valve 10. The excess mixed sewage is refluxed by the first flow regulating valve 8 and refluxed into the mixing barrel 1 through the return pipe 11. It is mixed again with the sewage newly flowing into the mixing barrel 1 from the feed pipe 2. The reflux process also plays a role in the circulation treatment, making the sewage mixing effect better. In this way, the dosage of the reagent can be reduced on the basis of improving the mixing effect, saving the sewage treatment cost.

[0017] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A sewage separation mixer, comprising a mixing barrel (1), characterized in that: The mixing barrel (1) comprises an upper cylindrical barrel body (1-1) and a lower conical barrel body (1-2); a feed pipe (2) is installed at the center of the upper end surface of the cylindrical barrel body (1-1); the lower end of the feed pipe (2) is located at the bottom of the conical barrel body (1-2); a spiral blade (3) is installed on the feed pipe (2) and extends from the upper part of the cylindrical barrel body (1-1) to the bottom of the conical barrel body (1-2); a dosing pipe (4) for adding flocculant solvent into the feed pipe (2) is connected to the side wall of the feed pipe (2); a discharge pipe (5) is connected to the bottom of the conical barrel body (1-2); and the discharge pipe (5) is connected to a discharge pipe (6) for discharging the mixed wastewater to a separation device.

2. The sewage separation mixer according to claim 1, characterized in that: The outlet end of the discharge pipe (5) is connected to a one-way valve (7) for preventing the mixed sewage from flowing back into the mixing barrel (1).

3. The sewage separation mixer according to claim 2, characterized in that: The one-way valve (7) pipeline is connected to a first flow regulating valve (8), the outlet end of the first flow regulating valve (8) is connected to a three-way pipe (9), one of the outlet ends of the three-way pipe (9) is connected to a second flow regulating valve (10), the second flow regulating valve (10) is connected to a discharge pipe (6), and a return pipe (11) is connected between the second outlet end of the three-way pipe (9) and the upper side wall of the cylindrical barrel (1-1).

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