Water treatment mixing dosing anti-crystallization device

Abstract

The utility model relates to a water treatment mixing and dosing anti-crystallization device, which comprises a water inlet pipe, a mixing and dosing device and a sewage treatment reaction stirring tank with a liquid outlet pipe, a motor and a stirring blade, and dosing pipe orifices are symmetrically arranged at the upper part of the outer side of the mixing and dosing device and are vertically arranged on a stirring tank platform; the dosing pipe orifice is connected with a spiral dosing pipe in the mixed dosing device, clings to the inner wall of the mixed dosing device and extends to the bottom of the mixed dosing device, an outer discharge pipe orifice is formed in the bottom of the outer side of the mixed dosing device, and a mixed dosing tank and a mixed dosing vertical pipe connected with a center hole in the bottom are arranged in the center of the interior of the mixed dosing device; the outer side of the mixing dosing tank is connected with the inner wall of the mixing dosing device through a fixing rod, so that a prepared medicament can be discharged from a liquid outlet pipe after fully reacting with sewage, and the mixing dosing device has the advantages of uniformly mixing the medicaments, quickly and fully reacting, preventing crystallization and the like.

Description

Technical Field

[0001] The utility model relates to the fields of environmental protection technology and water treatment technology, in particular to a water treatment mixed dosing anti-crystallization device, which is especially suitable for the application of mining field sewage treatment. Background Art

[0002] In the sewage treatment process, it is often necessary to use two or more reagents for treatment, especially some reagents that need to be fully mixed or reacted before being added to the sewage. When adding the reagents, a special mixing and dosing device is required. The existing dosing devices have problems such as insufficient mixing or reaction, easy crystallization and easy clogging, which make it impossible to add the reagents to the wastewater accurately and smoothly as expected, thus affecting the effect of sewage treatment.

[0003] To solve the above problems, Chinese patent CN208964565 discloses a "multi-agent mixing dosing device". Aiming at the single dosing, a main dosing tube and multiple secondary dosing tubes are connected in series on the dosing tube. The multiple secondary dosing tubes are inclined and staggered on both sides of the main dosing tube. This can achieve the addition of multiple agents, but there is still uneven mixing between the agents; for the crystallization of the dosing tube, Chinese patent CN108561650A discloses "a dosing point anti-crystallization injection port device and method thereof", which uses a flexible tube connection and keeps shaking under the action of water flow, so that crystals are not easy to adhere to the tube wall, which can make the dosing pipeline smooth, but in the stirring state, the flexible tube often floats to one direction and is easily entangled on the stirring shaft or other facilities.

[0004] Therefore, it is of practical significance to develop a simple and reliable mixed dosing and anti-crystallization device suitable for sewage treatment. Summary of the invention

[0005] The task of the utility model is to overcome the existing deficiencies and provide a water treatment mixed medicine adding anti-crystallization device, which can not only make the medicines mix evenly, but also can react quickly and fully and prevent crystallization.

[0006] In order to complete the above tasks, this new type of use adopts the following technical solutions:

[0007] The water treatment mixed dosing and anti-crystallization device comprises a water inlet pipe, a mixed dosing device, a mixing tank for sewage treatment reaction with a liquid outlet pipe, a motor and a stirring blade; a dosing pipe opening is symmetrically arranged on the upper outer side of the mixed dosing device and is vertically placed on the stirring tank platform; the dosing pipe opening is connected to a spiral dosing pipe in the mixed dosing device, closely attached to the inner wall of the mixed dosing device and extends to the bottom of the mixed dosing device; an external discharge pipe opening is arranged at the bottom of the outer side of the mixed dosing device; a mixed dosing tank and a mixed dosing vertical pipe connected to the bottom center hole are arranged at the inner center of the mixed dosing device; the outer side of the mixed dosing tank is connected to the mixing tank through a fixing rod The mixing and dosing device is connected to the inner wall of the mixing and dosing device; the upper part of the mixing and dosing vertical pipe is connected to the central hole at the bottom of the mixing and dosing tank, and the lower part passes through the bottom center of the mixing and dosing device and is connected to the flange. The water inlet pipe is placed under the mixing and dosing device on the top side of the mixing tank, and the mixing and dosing vertical pipe at the bottom of the flange is directly inserted into the inside of the water inlet pipe, forming an oblique angle inside the water inlet pipe, and the inclined surface faces the water inlet direction of the water inlet pipe; the water inlet pipe is in a broken line shape, the water inlet pipe mouth is perpendicular to the side body of the mixing tank, the middle pipe is vertically arranged on the inner wall of the mixing tank, and the outlet direction of the end of the water inlet pipe points to the motor and the stirring blades in the mixing tank. After the prepared medicine and sewage are fully reacted, they are discharged from the liquid outlet pipe.

[0008] Compared with the prior art, the utility model has the following advantages or effects:

[0009] Because a vortex is formed by the double-sided spiral dosing tube, the reagents are mixed evenly or react quickly and fully; at the same time, because the reagent is added to the middle of the water inlet pipe of the reaction device through the intermediate mixing dosing tank, the reagent and the solution to be reacted are fully mixed, and the mixing dosing vertical pipe is set at an angle, so it is not easy for the reagent to remain in the dosing tube and crystallize; in addition, because the end is provided with a guide stirring blade, the reaction is faster and more sufficient, so that rapid and uniform mixing between the reagents and between the reagents and sewage and prevention of crystallization are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specific structure of the utility model is given by the following drawings.

[0011] Figure 1 The present invention is a schematic diagram of a water treatment mixed dosing and anti-crystallization device proposed by the present invention.

[0012] Figure 2 for Figure 1 Schematic diagram of the rectangular mixing and dosing tank of the device shown.

[0013] Figure 3 for Figure 1 Schematic diagram of the cylindrical mixing and dosing tank of the device shown.

[0014] The symbols in the accompanying drawings represent:

[0015] 1. Mixing tank 11. Mixing tank platform 12. Motor and mixing blades 2. Mixing dosing device 21. Dosing pipe 211. Spiral dosing pipe; 22. External pipe 23. Mixing dosing tank 24. Mixing dosing vertical pipe 25. Fixed rod 26. Flange 3. Water inlet pipe 4. Liquid outlet pipe

[0016] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0017] like Figure 1-3 As shown, a water treatment mixed dosing and anti-crystallization device provided by the utility model includes a water inlet pipe 3, a mixed dosing device 2, a sewage treatment reaction stirring tank 1 with a liquid outlet pipe 4, a motor and a stirring blade 12; a dosing pipe mouth 21 is symmetrically arranged on the upper outer side of the mixed dosing device 2 and is vertically placed on the stirring tank platform 11, the dosing pipe mouth 21 is connected to the spiral dosing pipe 211 inside the mixed dosing device 2, close to the inner wall of the mixed dosing device 2 and extending to the bottom of the mixed dosing device 2, an outer discharge pipe mouth 22 is arranged at the bottom of the outer side of the mixed dosing device 2, a mixed dosing tank 23 and a mixed dosing vertical pipe 24 connected to the bottom center hole are arranged at the inner center of the mixed dosing device 2, and the mixed dosing tank 23 is provided with a mixed dosing tank 23. The outer side is connected to the inner wall of the mixing and dosing device 2 through a fixing rod 25; the upper part of the mixing and dosing vertical pipe 24 is connected to the central hole at the bottom of the mixing and dosing tank 23, and the lower part passes through the bottom center of the mixing and dosing device 2 and is connected to the flange 26; the water inlet pipe 3 is placed under the mixing and dosing device 2 on the top side of the mixing tank 1, and the mixing and dosing vertical pipe 24 at the bottom of the flange 26 is directly inserted into the inside of the water inlet pipe 3, forming an oblique angle inside the water inlet pipe 3, and the oblique surface faces the water inlet direction of the water inlet pipe 3; the water inlet pipe 3 is in a broken line shape, the water inlet pipe mouth is perpendicular to the side body of the mixing tank 1, the middle pipe is vertically arranged on the inner wall of the mixing tank 1, and the outlet direction of the end of the water inlet pipe points to the motor and the stirring blade 12 in the mixing tank 1. After the mixed medicine and sewage are fully reacted, they are discharged from the liquid outlet pipe (4).

[0018] The utility model can further include:

[0019] The mixing and dosing vertical pipe 24 of the mixing and dosing device 2 has a diameter of 0.01 to 0.1 m, is inserted into the water inlet pipe 3 to a height of 0.1 to 0.5 m, and has an oblique angle of 30 to 75°.

[0020] The mixing and dosing tank 23 of the mixing and dosing device 2 is an open rectangular parallelepiped or a cylinder.

[0021] The spiral dosing tubes 211 of the mixing dosing device 2 have a spiral angle of 15 to 60 degrees and a number of turns of 0.5 to 3. An even number of spiral dosing tubes 211 are symmetrically arranged inside the mixing dosing device 2 , and an odd number of spiral dosing tubes 211 are evenly distributed inside the mixing dosing device 2 .

[0022] The mixing and dosing tank 23 of the mixing and dosing device 2 occupies 1 / 20 to 1 / 5 of the internal volume of the mixing and dosing device 2 , and the top of the mixing and dosing tank 23 is 0.2 to 1 m away from the top of the mixing and dosing device 2 .

[0023] The mixing and dosing device 2 is 0.5-2 m high and 0.2-1 m in diameter. The motor and the stirring blade 12 are 0.5-2 m away from the stirring tank 1 .

[0024] When working, firstly, the prepared liquid medicine is sent to the spiral medicine-feeding pipe 211 from the medicine-feeding nozzles 21 on both sides of the mixing and dosing device 2. Secondly, the medicine is mixed in a vortex shape inside the mixing and dosing device 2. When the liquid reaches the top of the mixing and dosing tank 23 after being fully mixed or reacted, it enters the mixing and dosing tank 23, flows into the water inlet pipe 3 from the mixing and dosing vertical pipe 24, and is fully mixed with the liquid in the water inlet pipe 3. Finally, it is sent to the stirring tank 1 to continue the reaction treatment. The liquid in the water inlet pipe 3 of the mixing and dosing vertical pipe 24 is washed away, and no crystals are formed. Figure 2 As shown, the dosing tube group 21 is two or more dosing tubes arranged in a spiral shape close to the inner wall of the dosing barrel. When the dosing tube flows out from the lower port, it has the kinetic energy of the spiral flow close to the inner wall. 22 is the external discharge pipe port, which is closed when it does not need to be emptied. The solution entering the 21 tube will rotate and collide at the bottom of the No. 2 barrel due to the spiral flow of the 21 tube itself, realizing vortex mixing. At the same time, as the dosing progresses, the solution in the No. 2 barrel gradually rises until it is higher than the upper opening of the mixing dosing tank 23. At this time, the mixed solution will flow into the mixing dosing vertical pipe 24 through the upper opening of 23, and then flow into the stirring tank 1. At the same time, as Figure 1 As shown, when the mixed dosing vertical pipe adds the reagent into the stirring tank 1, it is not added immediately, but first enters the water adding pipe 3, and then enters the stirring tank 1 together with the flowing water in 3. Generally, the outlet end of the dosing pipe is in direct contact with the air, and crystals will gradually form from the outside of the pipe mouth and gradually erode into the pipe. However, this device places it under the flushing of the water flow of pipe No. 3, so it can effectively avoid the development of crystals from the pipe mouth to the inner wall. There is a continuously flowing solution in the pipe itself, which is not in contact with the air and is not easy to form crystals. Therefore, the problem of crystallization of the reagent in the mixed dosing vertical pipe can be effectively avoided.

[0025] The above embodiments are only preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be considered as equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A water treatment mixed dosing and anti-crystallization device, comprising a water inlet pipe (3), characterized in that It also includes a mixing and dosing device (2), a stirring tank (1) for sewage treatment reaction with a liquid outlet pipe (4), a motor and a stirring blade (12); a dosing pipe opening (21) is symmetrically arranged on the upper outer side of the mixing and dosing device (2) and is vertically placed on the stirring tank platform (11); the dosing pipe opening (21) is connected to the spiral dosing pipe (211) inside the mixing and dosing device (2), is closely attached to the inner wall of the mixing and dosing device (2) and extends to the bottom of the mixing and dosing device (2); an external discharge pipe opening (22) is arranged at the bottom outer side of the mixing and dosing device (2); a mixing and dosing tank (23) and a mixing and dosing vertical pipe (24) connected to the bottom center hole are arranged at the inner center of the mixing and dosing device (2); the outer side of the mixing and dosing tank (23) is connected to the mixing and dosing device (2) through a fixing rod (25). 2) connected to the inner wall; the upper part of the mixing and dosing vertical pipe (24) is connected to the central hole at the bottom of the mixing and dosing tank (23), and the lower part passes through the bottom center position of the mixing and dosing device (2) and is connected to the flange (26); the water inlet pipe (3) is placed under the mixing and dosing device (2) on the top side of the stirring tank (1), and the mixing and dosing vertical pipe (24) below the flange (26) is directly inserted into the inside of the water inlet pipe (3), forming an oblique angle inside the water inlet pipe (3), and the oblique surface faces the water inlet direction of the water inlet pipe (3); the water inlet pipe (3) is in a broken line shape, the water inlet pipe mouth is perpendicular to the side body of the stirring tank (1), the middle pipe is vertically arranged on the inner wall of the stirring tank (1), and the outlet direction of the end of the water inlet pipe points to the motor and the stirring blade (12) in the stirring tank (1). After the mixed and prepared medicine and sewage are fully reacted, they are discharged from the liquid outlet pipe (4).

2. The device according to claim 1, characterized in that The mixing and dosing vertical pipe (24) of the mixing and dosing device (2) has a diameter of 0.01 to 0.1 m, is inserted into the water inlet pipe (3) to a height of 0.1 to 0.5 m, and has an oblique angle of 30 to 75 degrees.

3. The device according to claim 1, characterized in that The mixing and dosing tank (23) of the mixing and dosing device (2) is an open rectangular parallelepiped or a cylinder.

4. The device according to claim 1, characterized in that The spiral dosing tube (211) of the mixing and dosing device (2) has a spiral angle of 15 to 60 degrees and a number of turns of 0.5 to 3. An even number of spiral dosing tubes (211) are symmetrically arranged inside the mixing and dosing device (2), and an odd number of spiral dosing tubes (211) are evenly distributed inside the mixing and dosing device (2).

5. The device according to claim 1, characterized in that The mixing and dosing tank (23) of the mixing and dosing device (2) occupies 1 / 20 to 1 / 5 of the internal volume of the mixing and dosing device (2), and the top of the mixing and dosing tank (23) is 0.2 to 1 m away from the top of the mixing and dosing device (2).

6. The device according to claim 1, 2, 3 or 4, characterized in that The mixing and adding device (2) is 0.5 to 2 m high and 0.2 to 1 m in diameter. The motor and the stirring blade (12) are 0.5 to 2 m away from the stirring tank (1).

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