Alkaline compound production system

Abstract

The invention discloses an alkaline compound production system. The system comprises a reactor main body; the reactor main body is of a cylindrical structure with two open ends; a material mixing area, an evaporation area, a reaction area and a cooling area are sequentially arranged in the reactor main body; a first collecting cover is arranged at one end, close to the material mixing area, of the reactor main body; a second collecting cover is arranged at one end, close to the cooling area, of the reactor; the outer side of the reactor main body is sleeved with a combustion chamber; a feeding pipe is arranged at one end, close to the mixing area, of the reactor main body; a first air inlet pipe is arranged at one end, close to the cooling area, of the reactor main body. The mixing area, the evaporation area, the reaction area and the cooling area are sequentially arranged in the reactor main body, and the feeding pipe and the first air inlet pipe are respectively arranged at the two ends of the reactor main body, so that the integrated design of mixing, evaporation, reaction and cooling procedures is realized, the operation process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of alkaline compound production, and more specifically to an alkaline compound production system. Background Art

[0002] Alkali (such as KOH, NaOH, etc.), metal amphoteric oxide ores (such as chromium trioxide ores, vanadium pentoxide ores, etc.) and oxidizing gases (such as oxygen, ozone, etc.) react at 150 to 550 degrees Celsius to generate alkaline compounds. The production of alkaline compounds generally includes four processes: mixing, evaporation, reaction, and cooling. In the existing alkaline compound production system, the four processes of mixing, evaporation, reaction, and cooling are independently set and operated separately, which has the problems of cumbersome operation and low production efficiency.

[0003] Therefore, how to provide a basic compound production system that can improve production efficiency is one of the technical problems that urgently need to be solved in this field. Summary of the invention

[0004] In view of this, the present invention provides a basic compound production system, the purpose of which is to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A basic compound production system comprises: a reactor body; the reactor body is a cylindrical structure with openings at both ends; a mixing zone, an evaporation zone, a reaction zone and a cooling zone are sequentially arranged in the reactor body; a first collecting hood is arranged at one end of the reactor body close to the mixing zone; a second collecting hood is arranged at one end of the reactor body close to the cooling zone; a combustion chamber is sleeved on the outer side of the reactor body; a feed pipe is arranged at one end of the reactor body close to the mixing zone; and a first air inlet pipe is arranged at one end of the reactor body close to the cooling zone.

[0007] Preferably, a heat exchanger is provided outside the reactor body; a first exhaust pipe is provided on the combustion chamber; a second exhaust pipe and a second intake pipe are provided on the heat exchanger; the second exhaust pipe is connected to the first exhaust pipe through the heat exchanger; and the second intake pipe is connected to the first intake pipe through the heat exchanger.

[0008] Preferably, a carbon dioxide removal device is provided on the second air inlet pipe.

[0009] Preferably, a dosing tank is provided outside the reactor body; and the end of the feed pipe away from the reactor body is connected to the dosing tank.

[0010] Preferably, a water tank is provided below the first collecting hood; and a drain outlet is provided at the bottom of the first collecting hood.

[0011] Preferably, a third exhaust pipe is provided on the top of the first collecting hood; a spray tower is provided at the other end of the third exhaust pipe; and a fan is provided on the outside of the spray tower.

[0012] Preferably, a discharge port is provided at the bottom of the second collecting hood.

[0013] Preferably, the reactor body is arranged tilted; the mixing zone is higher than the cooling zone.

[0014] Preferably, the inclination angle of the reactor body is 0 to 5°.

[0015] Preferably, a plurality of annular material lifting plates are provided on the inner wall of the reactor body; the plurality of annular material lifting plates are arranged in parallel along the central axis direction of the reactor body.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] 1) The present invention realizes an integrated design of mixing, evaporation, reaction and cooling processes by sequentially arranging a mixing zone, an evaporation zone, a reaction zone and a cooling zone in the reactor body, and arranging a feed pipe and a first air inlet pipe at both ends of the reactor body, thereby simplifying the operation process and improving production efficiency;

[0018] 2) The present invention provides a heat exchanger to exchange heat between the oxidizing gas and the high-temperature exhaust gas, thereby realizing the utilization of the residual heat from combustion and saving energy;

[0019] 3) The present invention provides an annular lifting plate to lift the mixed material in the reactor body and drop it, thereby increasing the contact area between the mixed material and the oxidizing gas, thereby making the reaction more complete and effectively improving the conversion rate of the metal amphoteric oxide ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a basic compound production system of the present invention;

[0021] Figure 2 is an internal cross-sectional view of the reactor body;

[0022] In the figure: 1. Reactor body; 2. Mixing zone; 3. Evaporation zone; 4. Reaction zone; 5. Cooling zone; 6. First collecting hood; 7. Second collecting hood; 8. Combustion chamber; 9. Feed pipe; 10. First air inlet pipe; 11. Heat exchanger; 12. First exhaust pipe; 13. Second exhaust pipe; 14. Second air inlet pipe; 15. Carbon dioxide removal device; 16. Mixing tank; 17. Water tank; 18. Third exhaust pipe; 19. Spray tower; 20. Fan; 21. Discharge port; 22. Annular lifting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example

[0025] Reference Figure 1-2 As shown, the present invention discloses a basic compound production system, comprising: a reactor body 1; the reactor body 1 is a cylindrical structure with openings at both ends; a mixing zone 2, an evaporation zone 3, a reaction zone 4 and a cooling zone 5 are sequentially arranged in the reactor body 1; a first collecting hood 6 is arranged at one end of the reactor body 1 close to the mixing zone 2; a second collecting hood 7 is arranged at one end of the reactor body close to the cooling zone 5; a combustion chamber 8 is sleeved on the outer side of the reactor body 1; a feed pipe 9 is arranged at one end of the reactor body 1 close to the mixing zone 2; a first air inlet pipe 10 is arranged at one end of the reactor body 1 close to the cooling zone 5; when in use, fuel is heated in the combustion chamber 8 and burned to heat the reactor body 1, and a mixture of an alkaline solution and a metal amphoteric oxide ore is fed from the mixing zone 2 into the reactor body 1 through the feed pipe 9, and at the same time, an oxidizing gas is introduced from the cooling zone 5 into the reactor body through the first air inlet pipe 10 1, the mixed material entering the reactor body 1 passes through the mixing zone 2, the evaporation zone 3, the reaction zone 4 and the cooling zone 5 in sequence, wherein the mixed material is evenly mixed after passing through the mixing zone 2, the mixed material is evaporated in the evaporation zone 3 to meet the reaction conditions, and the mixed material becomes a semi-solid and semi-liquid state with poor fluidity after passing through the reaction zone 4, and slowly flows to the reaction zone to react chemically with the oxidizing gas, so that the mixed material is converted into an alkaline compound, and the alkaline compound meets the relatively low-temperature oxidizing gas that is continuously introduced after passing through the cooling zone, and the two exchange heat, wherein the oxidizing gas heats up and enters the reaction zone, and the alkaline compound cools down and enters the second collecting hood 7, and the alkali vapor generated during the reaction enters the first collecting hood 6 under the action of the continuously introduced oxidizing gas, thereby realizing the production of alkaline compounds, and during the production process, the reactor body 1 keeps rotating.

[0026] The above technical solution realizes an integrated design of mixing, evaporation, reaction and cooling processes by sequentially arranging a mixing zone, an evaporation zone, a reaction zone and a cooling zone in the reactor body, and arranging a feed pipe and a first air inlet pipe at both ends of the reactor body, thereby simplifying the operation process and improving production efficiency.

[0027] In this embodiment, a heat exchanger 11 is provided outside the reactor body 1; a first exhaust pipe 12 is provided on the combustion chamber 8; a second exhaust pipe 13 and a second intake pipe 14 are provided on the heat exchanger 11; the second exhaust pipe 13 is connected to the first exhaust pipe 12 through the heat exchanger 11; the second intake pipe 14 is connected to the first intake pipe 10 through the heat exchanger 11; when in use, the oxidizing gas enters the heat exchanger 11 through the second intake pipe 14, and the high-temperature exhaust gas generated by the combustion in the combustion chamber 8 enters the heat exchanger through the first exhaust pipe 12, the oxidizing gas exchanges heat with the high-temperature exhaust gas, and the heated oxidizing gas enters the reactor body 1 through the first intake pipe 10 to provide the required oxygen and temperature for the alkaline compound production reaction, and the cooled exhaust gas is discharged through the second exhaust pipe 13, thereby realizing the utilization of combustion waste heat and saving energy.

[0028] In this embodiment, a carbon dioxide removal device 15 is provided on the second air inlet pipe 14 to remove carbon dioxide from the oxidizing gas and reduce side reactions in the reactor body 1 .

[0029] In this embodiment, a dosing tank 16 is provided outside the reactor body 1; the end of the feed pipe 9 away from the reactor body 1 is connected to the dosing tank 16; by providing the dosing tank 16, the alkaline solution and the metal-containing amphoteric oxide ore are mixed to facilitate feeding.

[0030] In this embodiment, a water tank 17 is provided under the first collecting hood 6; a drain outlet is provided at the bottom of the first collecting hood 6; when in use, the alkaline steam generated in the production process enters the first collecting hood 6 and condenses to form alkaline condensed water, and the alkaline condensed water is collected through the water tank 17 under the first collecting hood 6.

[0031] In this embodiment, a third exhaust pipe 18 is provided on the top of the first collecting hood 6; a spray tower 19 is provided at the other end of the third exhaust pipe 18; a fan 20 is provided on the outside of the spray tower 19; through the fan 20, not only can the alkaline tail gas in the first collecting hood 6 be sucked into the spray tower 19 for treatment to make the discharged tail gas meet the standards, but also a slight negative pressure can be drawn out from the inside of the reactor body 1, thereby acting on the alkaline steam and the like generated in the reactor body 1, so that the alkaline steam and the like generated in the reactor body 1 can flow to the first collecting hood 6 more smoothly.

[0032] In this embodiment, a circulating water pump is provided outside the reactor body 1, and the circulating water pump transports the alkaline wastewater generated by the spray tower 19 and the alkaline wastewater collected in the water tank 17 to the batching tank 16 through a circulating water pipe to realize the circulation of the alkaline wastewater.

[0033] In this embodiment, a discharge port 21 is provided at the bottom of the second collecting cover 7 to facilitate discharge.

[0034] In this embodiment, the reactor body 1 is arranged to be inclined; the mixing zone 2 is higher than the cooling zone 5 .

[0035] In this embodiment, the inclination angle of the reactor body 1 is 0-5°.

[0036] In this embodiment, a plurality of annular lifting plates 22 are provided on the inner wall of the reactor body 1; the plurality of annular lifting plates 22 are arranged in parallel along the central axis direction of the reactor body 1; by providing the annular lifting plates 22, the mixed material in the reactor body 1 can be lifted and dripped down under the action of the flow of the mixed material and the rotation of the reactor body 1, thereby increasing the contact area between the mixed material and the oxidizing gas, thereby making the reaction more complete and improving the conversion rate of the metal amphoteric oxide ore.

[0037] In this embodiment, the longitudinal section of the annular material lifting plate 22 is tooth-shaped.

[0038] In this embodiment, the reactor body 1 can rotate around its own central axis, and the combustion chamber 8 is fixed in position and does not rotate with the reactor body 1 .

[0039] In this embodiment, the outer side of the combustion chamber 8 is covered with heat-insulating cotton.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A basic compound production system, characterized in that: include: A reactor body (1); the reactor body (1) is a cylindrical structure with openings at both ends; a mixing zone (2), an evaporation zone (3), a reaction zone (4) and a cooling zone (5) are sequentially arranged in the reactor body (1); a first collecting hood (6) is arranged at one end of the reactor body (1) close to the mixing zone (2); a second collecting hood (7) is arranged at one end of the reactor body (1) close to the cooling zone (5); a combustion chamber (8) is arranged on the outer side of the reactor body (1); a feed pipe (9) is arranged at one end of the reactor body (1) close to the mixing zone (2); and a first air inlet pipe (10) is arranged at one end of the reactor body (1) close to the cooling zone (5).

2. A basic compound production system according to claim 1, characterized in that: A heat exchanger (11) is provided outside the reactor body (1); a first exhaust pipe (12) is provided on the combustion chamber (8); a second exhaust pipe (13) and a second intake pipe (14) are provided on the heat exchanger (11); the second exhaust pipe (13) is connected to the first exhaust pipe (12) through the heat exchanger (11); and the second intake pipe (14) is connected to the first intake pipe (10) through the heat exchanger (11).

3. A basic compound production system according to claim 2, characterized in that: The second air inlet pipe (14) is provided with a carbon dioxide removal device (15).

4. A basic compound production system according to claim 1, characterized in that: A dosing tank (16) is provided outside the reactor body (1); and the end of the feed pipe (9) away from the reactor body (1) is connected to the dosing tank (16).

5. A basic compound production system according to claim 1, characterized in that: A water tank (17) is provided below the first collecting hood (6); and a drainage outlet is provided at the bottom of the first collecting hood (6).

6. A basic compound production system according to claim 1, characterized in that: A third exhaust pipe (18) is provided at the top of the first collecting hood (6); a spray tower (19) is provided at the other end of the third exhaust pipe (18); and a fan (20) is provided outside the spray tower (19).

7. A basic compound production system according to claim 1, characterized in that: The second collecting hood (7) has a discharge port (21) at the bottom.

8. A basic compound production system according to claim 1, characterized in that: The reactor body (1) is arranged to be inclined; the mixing zone (2) is higher than the cooling zone (5).

9. A basic compound production system according to claim 8, characterized in that: The inclination angle of the reactor body (1) is 0 to 5°.

10. The basic compound production system according to claim 1, characterized in that: A plurality of annular material lifting plates (22) are provided on the inner wall of the reactor body (1); the plurality of annular material lifting plates (22) are arranged in parallel along the central axis direction of the reactor body (1).

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