Polymeric ferric sulfate liquid oxygen adding device

Abstract

The utility model relates to a polymeric ferric sulfate liquid oxygen adding device, which belongs to the technical field of material adding and comprises a reaction kettle body, a stirring shaft and a stirring motor, a stirring impeller is fixed on the stirring shaft, a distribution stirring rod is fixed on the outer wall of the lower portion of the stirring shaft, and a connecting rod is fixed on the inner side of the upper portion of the distribution stirring rod and fixed with the stirring shaft. A flow channel is arranged at the lower part of the stirring shaft, a cavity communicated with the flow channel is arranged in the distribution stirring rod, a plurality of distribution holes communicated with the cavity are formed in the outer side wall of the distribution stirring rod, a rotary joint is fixed at the bottom of the stirring shaft, the rotary joint is connected with a liquid oxygen adding pipe, and an electric valve is arranged on the liquid oxygen adding pipe. The distribution stirring rods are arranged on the lower portion of the stirring shaft, the distribution holes are evenly formed in the distribution stirring rods, liquid oxygen is added through the rotating connector and the liquid oxygen adding pipe, then the liquid oxygen is sprayed out of the distribution holes in a rotating mode, the liquid oxygen is added and mixed more evenly, and follow-up catalytic reaction is better facilitated.

Description

Technical Field

[0001] The utility model relates to a polyferric sulfate liquid oxygen adding device, belonging to the technical field of material adding. Background Art

[0002] During the production process of polyferric sulfate, liquid oxygen needs to be added to the reactor to act as an oxidant. Currently, liquid oxygen is generally added by injecting it into the bottom of the reactor through an oxygen inlet pipe. The oxygen inlet pipe is equipped with a valve and connected to the liquid oxygen tank. Liquid oxygen is added to the reactor by opening the valve. However, after the liquid oxygen enters the liquid reactants in the reactor, it is unevenly distributed and cannot undergo a good oxidation reaction, which affects the production of polyferric sulfate. Utility Model Content

[0003] The utility model provides a polyferric sulfate liquid oxygen adding device, which solves the problem that the liquid oxygen in the current device is unevenly distributed after entering the liquid reactant of the reactor, cannot perform the oxidation reaction well, and affects the production of polyferric sulfate.

[0004] The utility model relates to a polyferric sulfate liquid oxygen addition device, which comprises a reactor body, a stirring shaft is provided on the reactor body, a stirring motor is fixed on the top of the stirring shaft, a stirring impeller is fixed on the stirring shaft, a distribution stirring rod is fixed on the outer wall of the lower part of the stirring shaft, a connecting rod is fixed on the inner side of the upper part of the distribution stirring rod, the connecting rod is fixed to the stirring shaft, a flow channel is provided at the lower part of the stirring shaft, a cavity connected to the flow channel is provided inside the distribution stirring rod, a plurality of distribution holes connected to the cavity are provided on the outer wall of the distribution stirring rod, a rotary joint is fixed on the bottom of the stirring shaft, the rotary joint is connected to a liquid oxygen addition pipe, and an electric valve is provided on the liquid oxygen addition pipe.

[0005] As a preferred embodiment, a pressure measuring tube is fixed on the top of the reactor body, a pressure measuring cylinder is fixed on the top of the pressure measuring tube, and a pressure sensor is fixed on the top of the pressure measuring cylinder to monitor the pressure in the reactor body.

[0006] As a preferred embodiment, a closing cover is fixed to the top of the pressure measuring cylinder by bolts, a filter plate is fixed inside the pressure measuring cylinder, and the pressure sensor is fixedly installed on the closing cover. The filter plate can filter the gas to prevent dust from affecting the pressure detection. The closing cover can be opened to facilitate cleaning of the filter plate.

[0007] As a preferred embodiment, a temperature measuring tube is also provided on the top of the reactor body, a sleeve is connected to the temperature measuring tube through a flange, a temperature sensor is provided in the sleeve, a plurality of limit sleeves are provided at the lower end of the sleeve, a support plate is fixed to the outside of the limit sleeve, and the outer end of the support plate is fixed to the inner wall of the reactor body, so as to monitor the temperature inside the reactor body.

[0008] Preferably, the temperature sensor is connected to a controller, which is in turn connected to the pressure sensor and the electric valve. The controller automatically controls the addition of liquid oxygen based on pressure and temperature, reducing human interference and worker workload. This effectively avoids waste of liquid oxygen and improves operational safety.

[0009] As a preferred embodiment, a heating jacket is provided on the outside of the reactor body, and the heating jacket includes an upper jacket, a middle jacket and a lower jacket. The top of the upper jacket and the bottom of the lower jacket are welded and fixed to the reactor body. A heating liquid inlet pipe is fixed to the bottom of the lower jacket, and a heating liquid outlet pipe is fixed to the upper part of the middle jacket. The inner end of the heating liquid outlet pipe is provided with an elbow extending upward into the top of the upper jacket, which can better discharge the heating agent on the top of the upper jacket and make the temperature more uniform. The heating jacket is a split structure, which is convenient for manufacturing and installation.

[0010] As a preferred embodiment, a reinforced inner ring plate is welded and fixed at the connection between the upper jacket and the middle jacket, and at the connection between the middle jacket and the lower jacket. A welding gap is provided between the upper jacket and the middle jacket, and between the middle jacket and the lower jacket. An annular arc-shaped groove is provided on the outer wall of the reinforced inner ring plate corresponding to the welding gap. The top of the arc-shaped groove is above the bottom of the upper jacket, and the bottom of the arc-shaped groove is below the top of the middle jacket. The reinforced inner ring plate can increase the welding strength of the connection between the middle jacket and the upper jacket and the lower jacket, and the arc-shaped groove is provided so that the weld layer in the welding gap can enter the arc-shaped groove to form an anti-decoupling method, thereby better preventing the weld layer from falling off.

[0011] As a preferred embodiment, the outer wall of the support plate is arc-shaped, and a positioning hole is provided on the outer wall of the support plate. A positioning column that cooperates with the positioning hole is fixed on the inner wall of the reactor body. The positioning hole and the positioning column cooperate to quickly locate the position of the support plate. A polytetrafluoroethylene layer is provided on the inner wall of the limiting sleeve, and the top and bottom of the polytetrafluoroethylene layer are provided with limiting flanges. The inner wall of the limiting sleeve is provided with limiting grooves that cooperate with the limiting flanges. A dovetail-shaped anti-slip protrusion is provided on the outer wall of the polytetrafluoroethylene layer, and an anti-slip groove that cooperates with the anti-slip protrusion is provided on the inner wall of the limiting sleeve to prevent the polytetrafluoroethylene layer from falling off. The limiting sleeve can support the lower part of the sleeve to increase its strength.

[0012] As a preferred embodiment, reinforcing plates are fixed on the inner side of the liquid oxygen addition pipe where it passes through the reactor body and on the outer side where it passes through the lower jacket to increase the strength of the pipe.

[0013] The utility model has the following beneficial effects:

[0014] By setting a distribution stirring rod at the lower part of the stirring shaft, and then evenly setting distribution holes on the distribution stirring rod, and then adding liquid oxygen through the rotary joint and the liquid oxygen adding tube, and then rotating and spraying it out from the distribution hole, the liquid oxygen addition and mixing are more uniform, which is more conducive to the subsequent catalytic reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is the structural diagram of the pressure measuring cylinder;

[0017] Figure 3 for Figure 1 Schematic diagram of part of the structure;

[0018] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 5 for Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0020] Figure 6 Schematic diagram of the structure of the support plate;

[0021] In the figure: 1. stirring motor, 2. pressure sensor, 3. pressure measuring cylinder, 4. temperature sensor, 5. reactor body, 6. stirring shaft, 7. sleeve, 8. heating liquid outlet pipe, 9. heating jacket, 10. distribution stirring rod, 11. distribution hole, 12. support plate, 13. rotary joint, 14. reinforced inner ring plate, 15. heating liquid inlet pipe, 16. liquid oxygen addition pipe, 17. reinforcement plate, 18. positioning plug, 19. limit sleeve, 20. polytetrafluoroethylene layer, 21. anti-slip protrusion, 22. filter plate, 23. arc groove. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example 1, as Figures 1 to 5 As shown, the utility model is a polyferric sulfate liquid oxygen addition device, including a reactor body 5, a stirring shaft 6 is provided on the reactor body 5, a stirring motor 1 is fixed to the top of the stirring shaft 6, a stirring impeller is fixed to the stirring shaft 6, a distribution stirring rod 10 is fixed to the outer wall of the lower part of the stirring shaft 6, a connecting rod is fixed to the upper inner side of the distribution stirring rod 10, the connecting rod is fixed to the stirring shaft 6, a flow channel is provided at the lower part of the stirring shaft 6, a cavity communicating with the flow channel is provided inside the distribution stirring rod 10, a plurality of distribution holes 11 communicating with the cavity are provided on the outer wall of the distribution stirring rod 10, a rotary joint 13 is fixed to the bottom of the stirring shaft 6, the rotary joint 13 is connected to the liquid oxygen addition pipe 16, and the liquid oxygen addition pipe 16 is provided with an electric valve.

[0024] During operation, solid and liquid materials are put into the reactor body 5 and the stirring motor 1 is started for stirring. When liquid oxygen needs to be added, the electric valve is opened, and then the liquid oxygen enters the rotary joint 13 from the liquid oxygen addition pipe 16, and then enters the cavity of the distribution stirring rod 10 from the flow channel at the bottom of the stirring shaft 6, and then rotates and sprays out from the distribution hole 11, so that the oxygen is evenly distributed and mixed in the liquid material, so as to better carry out the catalytic reaction. After the liquid oxygen addition is completed, the electric valve on the liquid oxygen addition pipe 16 is closed.

[0025] Example 2, based on Example 1, features a pressure gauge tube fixed to the top of the reactor body 5, a pressure measuring tube 3 fixed to the top of the pressure gauge tube, and a pressure sensor 2 fixed to the top of the pressure measuring tube 3. A manhole opening with a manhole cover is provided at the top of the reactor body 5, and a discharge pipe with a valve is provided at the bottom of the reactor body 5. A liquid oxygen addition pipe 16 is connected to the liquid oxygen tank.

[0026] A closure cap is fixed to the top of the pressure measuring cylinder 3, a filter plate 22 is fixed inside the pressure measuring cylinder 3, and the pressure sensor 2 is fixedly mounted on the closure cap. When the filter plate 22 needs to be cleaned, the bolts on the closure cap can be removed, and then the closure cap can be removed to clean the filter plate 22.

[0027] A temperature measuring tube is also provided on the top of the reactor body 5, and a sleeve 7 is connected to the temperature measuring tube through a flange. A temperature sensor 4 is provided in the sleeve 7. The lower end of the sleeve 7 is covered with multiple limit sleeves 19, and a support plate 12 is fixed to the outside of the limit sleeve 19. The outer end of the support plate 12 is fixed to the inner wall of the reactor body 5.

[0028] The temperature sensor 4 is connected to a controller, and the controller is connected to the pressure sensor 2 and the electric valve.

[0029] A heating jacket 9 is provided on the outside of the reactor body 5. The heating jacket 9 includes an upper jacket, a middle jacket and a lower jacket. The top of the upper jacket and the bottom of the lower jacket are welded and fixed to the reactor body 5. A heating liquid inlet pipe 15 is fixed to the bottom of the lower jacket, and a heating liquid outlet pipe 8 is fixed to the upper part of the middle jacket. The inner end of the heating liquid outlet pipe 8 is provided with an elbow extending upward into the top of the upper jacket.

[0030] Reinforced inner ring plates 14 are welded and fixed at the connection between the upper jacket and the middle jacket, and at the connection between the middle jacket and the lower jacket. Welding gaps are provided between the upper jacket and the middle jacket, and between the middle jacket and the lower jacket. An annular arc-shaped groove 23 is provided on the outer wall of the reinforced inner ring plate 14 corresponding to the welding gap. The top of the arc-shaped groove 23 is above the bottom of the upper jacket, and the bottom of the arc-shaped groove 23 is below the top of the middle jacket.

[0031] The outer wall of the support plate 12 is arc-shaped, and a positioning hole is provided on the outer wall of the support plate 12. A positioning column 18 that cooperates with the positioning hole is fixed on the inner wall of the reactor body 5. A polytetrafluoroethylene layer 20 is provided on the inner wall of the limiting sleeve 19. The top and bottom of the polytetrafluoroethylene layer 20 are provided with limiting flanges, and the inner wall of the limiting sleeve 19 is provided with limiting grooves that cooperate with the limiting flanges on the upper and lower sides. A dovetail-shaped anti-slip protrusion 21 is provided on the outer wall of the polytetrafluoroethylene layer 20, and an anti-slip groove that cooperates with the anti-slip protrusion 21 is provided on the inner wall of the limiting sleeve 19. When installing the temperature sensor 4, first insert the positioning pin 18 on the support plate 12 connected to the limit sleeve 19 into the corresponding positioning hole, then insert the sleeve 7 into the temperature measuring tube, and insert the lower end of the sleeve 7 into the polytetrafluoroethylene layer 20 of the limit sleeve 19, then weld the support plate 12, and then fix the sleeve 7, and the temperature sensor 4 can be inserted into the sleeve 7.

[0032] Reinforcement plates 17 are fixed to the inner side of the liquid oxygen addition pipe 16 passing through the reactor body 5 and the outer side of the lower jacket.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0034] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. A device for adding liquid oxygen to a polymerized ferric sulfate, comprising a reactor body (5), a stirring shaft (6) provided on the reactor body (5), a stirring motor (1) fixed on the top of the stirring shaft (6), and a stirring impeller fixed on the stirring shaft (6), characterized in that: A distribution stirring rod (10) is fixed on the outer wall of the lower part of the stirring shaft (6), a connecting rod is fixed on the inner side of the upper part of the distribution stirring rod (10), and the connecting rod is fixed to the stirring shaft (6). A flow channel is provided at the lower part of the stirring shaft (6), and a cavity communicating with the flow channel is provided inside the distribution stirring rod (10). A plurality of distribution holes (11) communicating with the cavity are provided on the outer wall of the distribution stirring rod (10). A rotary joint (13) is fixed at the bottom of the stirring shaft (6), and the rotary joint (13) is connected to a liquid oxygen addition pipe (16). An electric valve is provided on the liquid oxygen addition pipe (16).

2. The polyferric sulfate liquid oxygen addition device according to claim 1, characterized in that: A pressure measuring tube is fixed on the top of the reactor body (5), a pressure measuring cylinder (3) is fixed on the top of the pressure measuring tube, and a pressure sensor (2) is fixed on the top of the pressure measuring cylinder (3).

3. The polyferric sulfate liquid oxygen addition device according to claim 2, characterized in that: A closing cover is fixed on the top of the pressure measuring cylinder (3), a filter plate (22) is fixed inside the pressure measuring cylinder (3), and the pressure sensor (2) is fixedly mounted on the closing cover.

4. The polyferric sulfate liquid oxygen addition device according to claim 2, characterized in that: A temperature measuring tube is also provided on the top of the reactor body (5), and a sleeve (7) is connected to the temperature measuring tube via a flange. A temperature sensor (4) is provided in the sleeve (7). A plurality of limiting sleeves (19) are provided on the lower end of the sleeve (7). A support plate (12) is fixed to the outer side of the limiting sleeve (19), and the outer end of the support plate (12) is fixed to the inner wall of the reactor body (5).

5. The polyferric sulfate liquid oxygen addition device according to claim 4, characterized in that: The temperature sensor (4) is connected to a controller, and the controller is connected to the pressure sensor (2) and the electric valve.

6. The polyferric sulfate liquid oxygen addition device according to claim 1, characterized in that: A heating jacket (9) is provided on the outside of the reactor body (5), and the heating jacket (9) includes an upper jacket, a middle jacket and a lower jacket. The top of the upper jacket and the bottom of the lower jacket are both welded and fixed to the reactor body (5). A heating liquid inlet pipe (15) is fixed to the bottom of the lower jacket, and a heating liquid outlet pipe (8) is fixed to the upper part of the middle jacket. The inner end of the heating liquid outlet pipe (8) is provided with an elbow extending upward into the top of the upper jacket.

7. The polyferric sulfate liquid oxygen addition device according to claim 6, characterized in that: A reinforcing inner ring plate (14) is welded and fixed at the connection between the upper jacket and the middle jacket, and at the connection between the middle jacket and the lower jacket. A welding gap is provided between the upper jacket and the middle jacket, and between the middle jacket and the lower jacket. An annular arc groove (23) is provided on the outer wall of the reinforcing inner ring plate (14) corresponding to the welding gap. The top of the arc groove (23) is located above the bottom of the upper jacket, and the bottom of the arc groove (23) is located below the top of the middle jacket.

8. The polyferric sulfate liquid oxygen addition device according to claim 4, characterized in that: The outer wall of the support plate (12) is arc-shaped, and a positioning socket is provided on the outer wall of the support plate (12). A positioning plug (18) that cooperates with the positioning socket is fixed on the inner wall of the reactor body (5). A polytetrafluoroethylene layer (20) is provided on the inner wall of the limiting sleeve (19). The top and bottom of the polytetrafluoroethylene layer (20) are provided with limiting flanges. The inner wall of the limiting sleeve (19) is provided with limiting grooves that cooperate with the limiting flanges. A dovetail-shaped anti-slip protrusion (21) is provided on the outer wall of the polytetrafluoroethylene layer (20), and an anti-slip groove that cooperates with the anti-slip protrusion (21) is provided on the inner wall of the limiting sleeve (19).

9. The polyferric sulfate liquid oxygen addition device according to claim 7, characterized in that: Reinforcement plates (17) are fixed to the inner side of the liquid oxygen addition pipe (16) passing through the reactor body (5) and the outer side of the lower jacket.

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