Reactor for treating thermal crystallization scale layer by using source kinetic energy

Abstract

The utility model relates to the field of environmental protection or chemical industry production, and discloses a reactor for treating a thermal crystallization scale layer through source kinetic energy, the reactor comprises a reactor cylinder, a stirring system and a descaling system, the reactor cylinder comprises a liquid outlet, a liquid supplementing opening, an air inlet and an air outlet, the stirring system comprises a stirring motor, a stirring shaft and a stirring paddle, and the stirring motor is connected with the stirring shaft. The stirring motor is driven to be centrally arranged at the right upper part of the reactor barrel; the reactor provided by the utility model is suitable for the working conditions that the heat effect is prominent in the reaction process, crystals separated out in the reaction process easily form a scale layer, and the scale layer is easily blocked, and compared with a traditional reactor, the reactor provided by the utility model has the advantages that the crystallization scale layer generated in the reaction process is continuously cleared by utilizing source kinetic energy without stopping for descaling; the continuous steady-state operation of the reaction process is realized. Meanwhile, all core mechanisms are arranged in the reactor, so that external space does not need to be occupied, and centralized transformation of stock devices is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental protection or chemical production field, concretely relates to a reactor for treating hot crystalline scale layer by using original kinetic energy. BACKGROUND

[0002] The reaction heat effect is obvious in the production process of sodium pyrosulfite, potassium pyrosulfite and the like, and the structure blockage accident caused by the instantaneous vaporization of slurry often occurs at the gas-liquid phase contact surface of the gas inlet pipe. When the scaling blockage occurs in the previous production process, three measures of steam purging, process water soaking and dissolving and shutdown mechanical unblocking are usually taken to dredge the scaling layer and restore the production system, which will be scaled and blocked again soon after production. It is extremely harmful to the production stability and safety. The utility model provides a reactor for treating hot crystalline scale layer by using original kinetic energy, which can completely eliminate the scaling blockage phenomenon of the gas inlet pipe, improve the production efficiency and greatly reduce the safety risk. SUMMARY

[0003] In view of the problems described in the background, the utility model provides a reactor for treating hot crystalline scale layer by using original kinetic energy, which solves the problems raised in the above background cases.

[0004] The reactor for treating hot crystalline scale layer by using original kinetic energy provided in the application adopts the following technical scheme:

[0005] A reactor for treating hot crystalline scale layer by using original kinetic energy, comprising a reactor cylinder, a stirring system and a descaling system, wherein the reactor cylinder comprises a liquid discharge port, a liquid supplementing port, a gas inlet and a gas outlet; the stirring system comprises a stirring motor, a stirring shaft and a stirring paddle; the stirring motor is arranged centrally above the upper part of the reactor cylinder, the stirring shaft extends into the central part of the reactor cylinder, and the stirring motor is connected to a connecting sealing assembly, a rack and a speed reducer; the stirring paddle is connected to the lower part of the stirring shaft through bolts and nuts; and the descaling system comprises 1-2 sets of flow guide pipes, 1-6 sets of scrapers and auxiliary functional components.

[0006] In the technical scheme of the utility model, the reactor cylinder comprises a liquid discharge port, a liquid supplementing port, a gas inlet and a gas outlet.

[0007] Further, the reactor cylinder is a cylinder, and the upper bottom or lower bottom is one or a combination of a convex head and a flat head.

[0008] Further, the liquid discharge port is located at the lower part or lower head of the reactor cylinder, and the liquid supplementing port, gas inlet and gas outlet are located at the upper part or upper head of the reactor cylinder.

[0009] The utility model discloses technical scheme in which the reactor cylinder is equipped with a stirring system, the stirring shaft vertically extends into the reactor cylinder from the central head of the reactor cylinder, and the stirring shaft rotation speed is between 15 and 62 r / min.

[0010] Further, the stirring shaft is round steel or steel pipe with nominal diameter between DN50 and DN150.

[0011] Further, the stirring shaft is connected with one or more layers of stirring paddles.

[0012] Further, the vertical height of the lowermost stirring paddle is between 1 / 6 and 1 / 3 of the height of the reactor cylinder.

[0013] In the utility model technical scheme, the upper part of the stirring shaft is embedded in the flow guide pipe, the air inlet is connected with the upper part of the flow guide pipe through a pipeline, and the upper part of the flow guide pipe is connected with the top of the reactor cylinder.

[0014] Further, the flow rate of the medium entering the flow guide pipe from the air inlet is between 0.25 and 15 m / s.

[0015] In the utility model technical scheme, the scraper is composed of two or more than two components of scraper handle, shaft scraper, upper scraper, inner scraper and outer scraper, the shaft scraper, inner scraper and outer scraper are connected with the scraper handle, the scraper handle is connected with the stirring paddle or the stirring shaft, the vertical height of the outer scraper is between 5 and 50 cm, and the vertical height of the inner scraper or the shaft scraper is between 0.01 and 0.99 times the length of the flow guide pipe.

[0016] In the utility model technical scheme, the stirring shaft, flow guide pipe, the swept cylinder of the scraper and the swept cylinder of the stirring paddle are coaxial, and the spacing between the stirring shaft and the shaft scraper is between 1 and 50 mm.

[0017] Further, the spacing between the flow guide pipe and the outer scraper is between 1 and 50 mm, and the spacing between the flow guide pipe and the inner scraper is between 1 and 50 mm.

[0018] In the utility model technical scheme, the stirring paddle has 1 to 3 layers.

[0019] Further, the spacing between the lower opening of the flow guide pipe and the adjacent stirring paddle in the vertical direction is between 50 and 1200 mm.

[0020] Further, when the stirring paddle has two or more than two layers, the scraper is connected with the uppermost stirring paddle or the stirring shaft above the uppermost stirring paddle.

[0021] In the utility model technical scheme, the lower opening of the flow guide pipe is wrapped in the scraper.

[0022] Further, the vertical height between the lower opening of the flow guide pipe and the upper part of the scraper handle is between 5-200mm.

[0023] In summary, the present application has the following beneficial technical effects:

[0024] 1. The reactor provided by the present application is suitable for the working condition that the thermal effect of the reaction process is prominent, the crystals precipitated in the reaction process are easy to form a scale layer, and the scale layer is easy to form a blockage. Compared with the traditional reactor, the present application continuously removes the crystalline scale layer generated in the reaction process by using the original kinetic energy without stopping production for scale removal, so that the continuous and steady operation of the reaction process is realized. At the same time, since the core mechanism of the present application is all arranged in the reactor, no external space is occupied, which is beneficial to realize the centralized modification of the existing device.

[0025] 2. The scale layer is not formed on the surface of the flow guide pipe. Compared with the traditional system, the present application eliminates the regular shutdown for scale removal operation, further eliminates the high-risk operation links such as steam purging, process water soaking, and manual unblocking, and greatly improves the safety factor of the operation personnel. DETAILED DESCRIPTION

[0026] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0027] Figure 1 is a schematic view of embodiment 1 of the present application;

[0028] Figure 2 is a schematic view of the scraper of embodiment 1 of the present application;

[0029] Figure 3 is a schematic view of the scraper of embodiment 2 of the present application;

[0030] Figure 4 is a schematic view of the scraper of embodiment 3 of the present application;

[0031] Figure 5 is a schematic view of the scraper of embodiment 4 of the present application;

[0032] Figure 6 is a schematic view of the scraper of embodiment 5 of the present application;

[0033] Figure 7 is a schematic view of embodiment 6 of the present application;

[0034] Figure 8 is a schematic view of the scraper of embodiment 6 of the present application;

[0035] Figure 9 is a schematic view of the scraper of embodiment 7 of the present application;

[0036] Figure 10 This is a schematic diagram of the scraper in Embodiment 8 of this utility model.

[0037] Figure 11 This is a schematic diagram of the scraper in Embodiment 9 of this utility model.

[0038] Figure 12 This is a schematic diagram of the scraper in Embodiment 10 of this utility model.

[0039] The components include: 1. Reactor shell; 11. Drain outlet; 12. Make-up outlet; 13. Air inlet; 14. Exhaust outlet; 15. Reactor shell; 21. Stirring motor; 22. Reducer; 23. Frame; 24. Connecting and sealing assembly; 25. Stirring shaft; 26. Stirring paddle; 31. Guide pipe; 32. Scraper; 321. Scraper handle; 322. Shaft scraper; 323. Upper scraper; 324. Inner scraper; 325. Outer scraper. Detailed Implementation

[0040] The technical solution of this utility model will be more clearly and completely explained below with reference to the accompanying drawings and through the description of the preferred embodiments of this utility model.

[0041] See Figure 1 A reactor for treating thermally crystallized scale using intrinsic kinetic energy includes a reactor body 1, a stirring system, and a descaling system. The reactor body 1 includes a drain port 11, a replenishment port 12, an air inlet 13, and an exhaust port 14. The stirring system includes a stirring motor 21, a stirring shaft 25, and a stirring paddle 26. The stirring motor 21 drives a centrally located upper part of the reactor body 1. The stirring shaft 25 extends into the center of the reactor body 1 and is connected to the stirring motor 21 via a connecting sealing assembly 24, a frame 23, and a reducer 22. The stirring paddle 26 is connected to the lower part of the stirring shaft 25 via bolts and nuts. The descaling system includes 1 to 2 sets of guide pipes 31 and 1 to 6 sets of scrapers 32.

[0042] The reactor body 1 is equipped with a stirring system 2. The stirring shaft 25 extends vertically from the center of the upper end cap of the reactor body 1 into the interior of the reactor body 1. The rotation speed of the stirring shaft 25 is between 15 and 62 r / min.

[0043] Furthermore, the stirring shaft 25 is a round steel or steel pipe with a nominal diameter between DN50 and DN150.

[0044] Furthermore, one or more stirring paddles 26 are connected to the stirring shaft 25.

[0045] Furthermore, the vertical height of the lowest stirring paddle 26 is between 1 / 6 and 1 / 3 of the height of the reactor cylinder 1.

[0046] The upper part of the stirring shaft 25 is embedded in the inner part of the draft tube 31, the air inlet 13 is connected with the upper part of the draft tube 31 through a pipe, and the upper part of the draft tube 31 is connected with the top of the reactor cylinder 1.

[0047] Further, the flow velocity of the medium entering the draft tube 31 from the air inlet 13 is between 0.25 and 15 m / s.

[0048] The stirring blade 26 has 1-3 layers, the stirring shaft 25, the draft tube 31, the scraper 32, and the cylindrical body swept by the stirring blade 26 are coaxial.

[0049] Further, the vertical distance between the lower part of the draft tube 31 and the adjacent stirring blade 26 is between 50 and 1200 mm.

[0050] The lower part of the draft tube 31 is wrapped in the inner part of the scraper 32.

[0051] Further, the vertical height between the lower part of the draft tube 31 and the upper part of the scraper handle 321 is between 5 and 200 mm.

[0052] The utility model will be further described below in combination with specific examples.

[0053] Example 1

[0054] Referring to Figure 1 , the scraper 32 is composed of a scraper handle 321, a shaft scraper 322, an upper scraper 323, an inner scraper 324, and an outer scraper 325, the shaft scraper 322, the inner scraper 324, and the outer scraper 325 are connected with the scraper handle 321, the scraper handle 321 is connected with the stirring blade 26, the vertical height of the outer scraper 325 is between 5 and 50 cm, the vertical height of the inner scraper 324 or the shaft scraper 322 is between 0.01 and 0.99 times the length of the draft tube 31, and the distance between the stirring shaft 25 and the shaft scraper 322 is between 1 and 50 mm.

[0055] Further, the distance between the draft tube 31 and the outer scraper 325 is between 1 and 50 mm, and the distance between the draft tube 31 and the inner scraper 324 is between 1 and 50 mm.

[0056] The lower part of the draft tube 31 is embedded in the space formed by the outer scraper 325 and the inner scraper 324, and the depth of the upper part of the embedded outer scraper 325 is between 5 and 80 cm.

[0057] Example 2

[0058] As shown in Figure 3 , the difference from Example 1 is that this example does not have an upper scraper 323.

[0059] Example 3

[0060] AsFigure 4 As shown, the difference between this embodiment and embodiment 1 is that this embodiment has no outer scraper 325, and the vertical height of the shaft scraper 322 or the inner scraper 324 is between 0.01 and 0.99 times the length of the draft tube 31.

[0061] Embodiment 4

[0062] As shown, the difference between this embodiment and embodiment 1 is that this embodiment has no outer scraper 325, and the vertical height of the shaft scraper 322 or the inner scraper 324 is between 0.01 and 0.99 times the length of the draft tube 31. Figure 5

[0063] Embodiment 5

[0064] As shown, the difference between this embodiment and embodiment 3 is that this embodiment has no outer scraper 325, and the middle part of the shaft scraper 322 and the inner scraper 324 is connected to the two ends of the scraper handle 321 in a "T" shape horizontally. Figure 6

[0065] Embodiment 6

[0066] As shown, the difference between this embodiment and embodiment 1 is that this embodiment has no outer scraper 325, and the vertical height of the shaft scraper 322 or the inner scraper 324 is between 0.01 and 0.99 times the length of the draft tube 31. Figure 7 Figure 8

[0067] Embodiment 7

[0068] As shown, the difference between this embodiment and embodiment 2 is that this embodiment has no outer scraper 325, and the vertical height of the shaft scraper 322 or the inner scraper 324 is between 0.01 and 0.99 times the length of the draft tube 31. Figure 9

[0069] Embodiment 8

[0070] As shown, the difference between this embodiment and embodiment 3 is that this embodiment has no outer scraper 325, and the middle part of the shaft scraper 322 and the inner scraper 324 is connected to the two ends of the scraper handle 321 in a "T" shape horizontally. Figure 10

[0071] Embodiment 9

[0072] As shown, the difference between this embodiment and embodiment 4 is that this embodiment has no outer scraper 325, and the vertical height of the shaft scraper 322 or the inner scraper 324 is between 0.01 and 0.99 times the length of the draft tube 31. Figure 11

[0073] Embodiment 8

[0074] As shown, the difference between this embodiment and embodiment 8 is that this embodiment has no upper scraper 323, and the scraper handle 321 is connected to the middle part of the shaft scraper 322 and the inner scraper 324. Figure 12

[0075] ​​​​​​​​Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0076] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0077] Finally: the above only for the preferred embodiment of the utility model has, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

[0078] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.

Claims

1. A reactor for treating a hot crystalline scale layer with indigenous kinetic energy, characterized in that, The reactor barrel (1), a stirring system and a descaling system are included. The reactor barrel (1) comprises a liquid outlet (11), a liquid supplementing inlet (12), an air inlet (13) and an air outlet (14). The stirring system comprises a stirring motor (21), a stirring shaft (25) and stirring blades (26). The stirring motor (21) is arranged in the center of the upper part of the reactor barrel (1). The stirring shaft (25) extends into the center of the reactor barrel (1) and is connected with the stirring motor (21) through a connecting sealing assembly (24), a frame (23) and a speed reducer (22). The stirring blades (26) are connected with the lower part of the stirring shaft (25) through bolts and nuts. The descaling system comprises a flow guide pipe (31) and a scraper (32). The upper part of the stirring shaft (25) is embedded in the flow guide pipe (31). The air inlet (13) is connected with the upper part of the flow guide pipe (31) through a pipeline. The upper part of the flow guide pipe (31) is connected with the top of the reactor barrel (1). The stirring shaft (25), the flow guide pipe (31), the scraper (32) and the stirring blades (26) are coaxial.

2. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 1, characterized in that, The rotating speed of the stirring shaft (25) is between 15 and 62 r / min.

3. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 2, characterized in that, The stirring shaft (25) is a round steel or a steel pipe with a nominal diameter between DN50 and DN150.

4. The reactor for processing hot crystalline scale layer with original kinetic energy according to claim 1, characterized in that, The flow rate of the medium entering the flow guide pipe (31) from the air inlet (13) is between 0.25 and 15 m / s.

5. The reactor for processing hot crystalline scale layer with original kinetic energy according to claim 1, characterized in that, The scraper (32) is composed of any two or more than two combinations of a scraper handle (321), a shaft scraper (322), an upper scraper (323), an inner scraper (324) and an outer scraper (325). The scraper handle (321) is connected with the stirring blades (26) or the stirring shaft (25). The vertical height of the outer scraper (325) is between 5 and 50 cm. The vertical height of the inner scraper (324) or the shaft scraper (322) is between 0.01 and 0.99 times the length of the flow guide pipe (31).

6. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 5, characterized in that, The distance between the stirring shaft (25) and the shaft scraper (322) is between 1 and 50 mm.

7. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 6, characterized in that, The stirring blades (26) have 1-3 layers.

8. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 7, characterized in that When the stirring blades (26) have two or more than two layers, the scraper (32) is connected with the uppermost stirring blades (26) or the stirring shaft (25) above the uppermost stirring blades (26).

9. A reactor for processing hot crystalline scale layers with native kinetic energy according to claim 6, characterized in that, The lower opening of the flow guide pipe (31) is wrapped in the scraper (32).

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