Anti-splash device of conical dissolvers

Abstract

A splash-proof device used with a tapped dissolver is provided, which belongs to the technology field of environment protection, more particularly the field of dissolution feed technique of flocculating agent in sewage treatment. The structure of the splash-proof device is that: an inverted T-shaped frame is arranged at the symmetric center of the junction of a tapped dissolver and an outlet waterpipe so that two ends of the horizontal portion of the T-shaped frame are welded with the two walls of the tapped dissolver and the vertical portion thereof extends inside the tapped dissolver, and the ends are threaded for the engagement with screw nuts that are welded on the steel balls thereon; the diameter of the steel bass is 3 / 4 to 4 / 5 of horizontal diameter of the tapped part where the steel ball is located. The splash-proof device has the advantages that: with the splash-proof device, the tapped dissolver can efficiently and feasibly block the passage where water drops move upwards without changing the running state of the original equipment, overcome the defect of upward water splash, prevent the dissolution feed equipment from being wetted, ensure the normal operation and efficiency of the original equipment, and solve the long-term problem of unsafe, unstable and non-continuous operation in the industry.

Description

technical field [0001] The invention belongs to the field of environmental protection technology, specifically, relates to the dissolving and dosing technology of flocculant used in the environmental protection sewage treatment technology. Background technique [0002] In the sewage treatment industry, sludge dewatering is an essential process. However, in the sludge dewatering process, high molecular polymers (commonly known as "flocculants") must be added to the sewage to achieve solid-liquid separation. the goal of. Since the high molecular polymers used in the sewage industry are mostly solid substances, special equipment is needed to dissolve them and prepare a flocculant solution with a certain concentration. The "two-box polymer flocculant dissolving and dosing device" is one of them. In order to make the prepared polymer flocculant solution homogeneous and active, the device is equipped with a polymer flocculant dry powder screw feeding device, a screw The water va...

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Problems solved by technology

[0005] 2. Due to the mechanism of polymer materials and their large molecular weight, once the dry powder is damp, the viscosity will be very high. If the mechanical transmission and sealing part of the "dissolution dosing device" is damp due to water vapor or water droplets, Dry powder is very easy to stick to the transmission device and sealing parts due to moisture, and in severe cases, these parts cannot work normally and cause the entire device to be paralyzed;

[0007] 4. Although a water vapor prevention valve is installed at the outlet of the dry powder screw conveying device, it only cures the surface and not the root cause. When preparing the polymer flocculant solution, the mixing acceleration device (water injector) starts to work first, and the water vapor prevention valve opens And when the powder feeding starts, there will be a large amount of water droplets moving upward from the mixing acceleration device to make the outlet of the screw powder feeding device, the sealing surface and the bottom of the water vapor prevention valve damp. The sealing surface will stick a large amount of polymer flocculant dry powder at the outlet of the screw powder feeding device. When the next job is opened, the sticky dry powder will be damp again, and the dry powder will stick to the outlet of the screw powder feeding device again when it is closed.

Reciprocating in this way, the dry polymer flocculant powder on the sealing surface of the water vapor prevention valve will become more and more sticky, and the lumps will become larger and larger, and finally the water vapor prevention valve cannot be closed, and the sealing and water vapor prevention functions will be lost.

[0008] 5. When the water vapor prevention valve loses its function, the upward moving water droplets will make the powder pushing screw in the screw powder conveying device damp. Similarly, the polymer dry powder will stick to the powder pushing screw and agglomerate in the screw chamber , so that the powder screw cannot work, and the whole device is paralyzed

[0009] 6. Due to the upward movement of water droplets, the dry powder in the screw chamber is wetted and agglomerated. If the agglomerated polymer flocculant falls into the suction chamber of the mixing acceleration device (water ejector), it will make the mixing acceleration device (water ejector) The suction port is clogged, making the entire unit inoperable

[0010] 7. Usually, in order to make the equipment run continuously, the water vapor prevention valve is forced to be removed during the use of the equipment, and then the agglomeration is cleared by manual methods from time to time, resulting in a lot of waste of polymer dry powder (the market price of polymer dry powder is very high ), increasing the user's production cost

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