Potassium sulfate processing reaction furnace

Abstract

The utility model relates to the technical field of potassium sulfate processing, and discloses a potassium sulfate processing reaction furnace, which comprises a baffle plate slidably connected to the top of the reaction furnace, and one end of the baffle plate penetrates through and extends into a feed pipe; the connecting plate is fixedly connected to the end, away from the feeding pipe, of the baffle; the threaded block is in threaded connection with the exterior of the lead screw, slidably connected to the top of the reaction furnace and fixedly connected with the end, away from the baffle, of the connecting plate. Sulfuric acid is injected into a feeding pipe, a power supply of a mixing mechanism and a servo motor is started, the servo motor drives a lead screw to rotate forwards and backwards according to a certain rule, a threaded block drives a baffle to reciprocate on the feeding pipe through a connecting plate, and when the baffle is gradually inserted into the feeding pipe, the circulation sectional area of the sulfuric acid is reduced, and the flow is correspondingly reduced; when the baffle gradually extends out of the feeding pipe, the circulation sectional area of the sulfuric acid is increased, the flow is correspondingly increased, the reciprocating movement of the baffle realizes the effect of reciprocating addition of the sulfuric acid, and the reaction uniformity is improved by matching with the mixing mechanism.

Description

Technical Field

[0001] This utility model relates to the field of potassium sulfate processing technology, specifically a potassium sulfate processing reactor. Background Technology

[0002] Potassium sulfate is an inorganic salt, usually pale yellow in color. It has low hygroscopicity, does not easily clump, has good physical properties, and is easy to apply. It is an excellent water-soluble potassium fertilizer and a major raw material for producing chlorine-free nitrogen, phosphorus, and potassium compound fertilizers. The Mannheim process is a widely used method for producing potassium sulfate. Concentrated sulfuric acid reacts with potassium chloride in the reaction chamber of a Mannheim furnace to produce potassium sulfate and hydrogen chloride gas.

[0003] In the potassium sulfate processing, potassium chloride and sulfuric acid need to be thoroughly mixed to ensure a complete reaction. Continuous addition of sulfuric acid may cause uneven mixing of materials in the reactor, resulting in excessively high sulfuric acid concentrations in some areas and insufficient sulfuric acid concentrations in others. This leads to incomplete reactions, reduced raw material utilization, and wasted resources. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a potassium sulfate processing reactor with the advantage of intermittent addition. This solves the problem that in the potassium sulfate processing process, potassium chloride and sulfuric acid need to be fully mixed to ensure a complete reaction, but continuous addition of sulfuric acid may result in uneven mixing of materials in the reactor, affecting reaction efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a potassium sulfate processing reactor, comprising a main assembly, wherein the main assembly includes:

[0008] The reactor has a feed pipe at the top;

[0009] An exhaust pipe is installed at the top of the reactor.

[0010] A mixing mechanism is provided on the reactor;

[0011] An additive assembly is provided on the reactor and the feed pipe, the additive assembly comprising:

[0012] A baffle is slidably connected to the top of the reactor, with one end of the baffle penetrating and extending into the inside of the feed pipe;

[0013] A connecting plate is fixedly connected to the end of the baffle away from the feed pipe;

[0014] The support frame is symmetrically and fixedly connected to the top of the reactor.

[0015] A lead screw is rotatably connected between the brackets;

[0016] A threaded block is threaded to the outside of the lead screw, the threaded block is slidably connected to the top of the reactor, and is fixedly connected to the end of the connecting plate away from the baffle.

[0017] A servo motor is installed on the top of the reactor, and the output shaft of the servo motor is fixedly connected to one end of the lead screw.

[0018] Preferably, a sealing element is provided at the connection between the feed pipe and the baffle, and the baffle is slidably connected to the inner wall of the sealing element.

[0019] Preferably, the baffle and the connecting plate are provided with a disassembly assembly, the disassembly assembly comprising:

[0020] A connecting block is fixedly connected to one end of the baffle near the connecting plate;

[0021] A connecting groove is formed at one end of the connecting plate near the baffle.

[0022] Bolts are threaded into the threaded holes in the connecting block and the connecting groove.

[0023] Preferably, a slider is fixedly connected to the bottom of the baffle, and a groove is provided on the top of the reactor, with the slider slidably connected within the groove.

[0024] Preferably, a protective frame is placed on top of the reactor, and the protective frame is sleeved on the top of the support, the lead screw and the threaded block. The protective frame has a through groove for the connecting plate to move.

[0025] Preferably, the mixing mechanism has connecting rods symmetrically and fixedly connected to the outer wall of the stirring shaft, and scrapers are fixedly connected to the connecting rods. The scrapers are slidably connected to the inner wall of the reactor.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the present invention provides a potassium sulfate processing reactor, which has the following beneficial effects:

[0028] This reactor features intermittent addition of sulfuric acid. Sulfuric acid is injected into the feed pipe, and the mixing mechanism and servo motor are activated. The servo motor drives a lead screw to rotate clockwise and counterclockwise in a regular pattern. A threaded block, via a connecting plate, drives a baffle to reciprocate along the feed pipe. As the baffle gradually inserts into the feed pipe, the flow cross-sectional area of ​​the sulfuric acid decreases, and the flow rate decreases accordingly. As the baffle gradually extends out of the feed pipe, the flow cross-sectional area of ​​the sulfuric acid increases, and the flow rate increases accordingly. This reciprocating movement of the baffle achieves the effect of repeated addition of sulfuric acid, which, in conjunction with the mixing mechanism, improves the uniformity of the reaction. This solves the problem that in the processing of potassium sulfate, potassium chloride and sulfuric acid need to be thoroughly mixed for the reaction to proceed fully, but continuous addition of sulfuric acid may lead to uneven mixing of materials within the reactor, affecting reaction efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a front view cross-sectional structural diagram of the reactor in this utility model;

[0031] Figure 3 This is a top view cross-sectional structural diagram of the reactor in this utility model;

[0032] Figure 4 This is a schematic diagram of the disassembly component structure in this utility model.

[0033] In the picture:

[0034] 1. Main components; 11. Reactor; 12. Feed pipe; 13. Exhaust pipe; 14. Mixing mechanism;

[0035] 2. Add components; 21. Baffle; 22. Connecting plate; 23. Bracket; 24. Lead screw; 25. Threaded block; 26. Servo motor; 27. Seal;

[0036] 3. Disassembly components; 31. Connecting block; 32. Connecting groove; 33. Bolt; 4. Protective frame; 5. Slider; 51. Slide groove; 6. Scraper; 61. Connecting rod. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Example 1

[0039] See Figure 1-4 A potassium sulfate processing reactor includes a main component 1, comprising: a reactor 11 with a feed pipe 12 at its top; an exhaust pipe 13 at the top of the reactor 11; a mixing mechanism 14 on the reactor 11; and an adding component 2 on the reactor 11 and the feed pipe 12, the adding component 2 comprising: a baffle 21 slidably connected to the top of the reactor 11, one end of the baffle 21 penetrating and extending into the interior of the feed pipe 12; and a connecting plate 22 for fixed connection. A bracket 23 is symmetrically and fixedly connected to the top of the reactor 11; a lead screw 24 is rotatably connected between the brackets 23; a threaded block 25 is threadedly connected to the outside of the lead screw 24, the threaded block 25 is slidably connected to the top of the reactor 11, and is fixedly connected to the end of the connecting plate 22 away from the baffle 21; a servo motor 26 is disposed on the top of the reactor 11, and the output shaft of the servo motor 26 is fixedly connected to one end of the lead screw 24. A sealing element 27 is provided at the connection between the feed pipe 12 and the baffle 21, and the baffle 21 is slidably connected to the inner wall of the sealing element 27. The baffle 21 and the connecting plate 22 are provided with a disassembly assembly 3. The disassembly assembly 3 includes: a connecting block 31, which is fixedly connected to one end of the baffle 21 near the connecting plate 22; a connecting groove 32, which is opened at one end of the connecting plate 22 near the baffle 21; and a bolt 33, which is threadedly connected to the threaded holes opened on the connecting block 31 and the connecting groove 32.

[0040] During use, the operator injects sulfuric acid into the feed pipe 12 and starts the power supply to the mixing mechanism 14 and the servo motor 26. The servo motor 26 drives the lead screw 24 to rotate forward and reverse in a certain regular pattern according to a pre-set program. The threaded block 25 connected to the lead screw 24 drives the connecting plate 22 to move back and forth along the extension direction of the lead screw 24. The baffle 21 connected to the connecting plate 22 moves back and forth on the feed pipe 12. When the baffle 21 is gradually inserted into the feed pipe 12, the flow cross-sectional area of ​​sulfuric acid decreases and the flow rate decreases accordingly. When the baffle 21 is gradually extended out of the feed pipe 12, the flow cross-sectional area of ​​sulfuric acid increases and the flow rate increases accordingly. The reciprocating movement of the baffle 21 achieves the effect of reciprocating addition of sulfuric acid. The mixing mechanism 14 works in conjunction to ensure that the added sulfuric acid is mixed and reacted with the potassium chloride inside the reactor 11 in a timely manner, thereby improving the uniformity of the reaction. When the baffle 21 moves, the square-shaped sealing element 27 on the outside of the baffle 21 seals the connection between the feed pipe 12 and the baffle 21. The sealing element 27 can be made of fluororubber, which gives the sealing element 27 excellent corrosion resistance and chemical resistance, and can resist the erosion of chemicals such as sulfuric acid. At the same time, it has good elasticity and sealing performance, can adapt to the movement of the baffle 21, and can effectively prevent sulfuric acid leakage.

[0041] The baffle 21 can be made of polytetrafluoroethylene (PTFE), which has excellent corrosion resistance, resists sulfuric acid erosion, and does not easily adhere to materials, facilitating the reciprocating movement of the baffle 21. However, after prolonged use, the baffle 21 will be affected by environmental factors such as temperature, humidity, and chemicals, leading to aging. Therefore, operators use disassembly component 3 to periodically replace the baffle 21 to prevent it from affecting normal use. When the baffle 21 is used for intermittent addition of sulfuric acid, the operator controls the rotation time of the servo motor 26 to prevent the connecting plate 22 from driving the baffle 21 to detach from the feed pipe 12, thus preventing sulfuric acid leakage. When the baffle 21 needs to be replaced, the operator controls the servo motor 26 to ensure that the screw... The pattern block 25 moves the connecting plate 22 to its furthest point. The connecting plate 22 then moves the baffle 21 out of the feed pipe 12. At this point, the bolt 33 is unscrewed to disconnect the connection between the connecting block 31 and the connecting plate 22. Then, the connecting block 31 on the new baffle 21 is inserted into the connecting groove 32, and the bolt 33 is tightened to complete the connection between the connecting plate 22 and the baffle 21. The servo motor 26 is driven, and the connecting plate 22 pushes the baffle 21 into the feed pipe 12, thereby completing the replacement of the baffle 21 and preventing the aging baffle 21 from affecting the subsequent addition of sulfuric acid.

[0042] The mixing mechanism 14 described above adopts conventional technical means, such as using a drive motor to drive the stirring shaft to rotate, and a stirring rod fixedly connected to the outer wall of the stirring shaft to achieve stirring. As long as it can achieve the mixing of sulfuric acid and potassium chloride, the specific structure will not be described in detail here.

[0043] Example 2

[0044] An auxiliary function has been added based on Embodiment 1.

[0045] See Figure 1-4 A slider 5 is fixedly connected to the bottom of the baffle 21, and a groove 51 is provided on the top of the reactor 11, with the slider 5 slidably connected within the groove 51. A protective frame 4 is placed on the top of the reactor 11, and the protective frame 4 is fitted onto the top of the support 23, the lead screw 24, and the threaded block 25. A through groove is provided on the protective frame 4 for the connecting plate 22 to move. A connecting rod 61 is symmetrically and fixedly connected to the outer wall of the stirring shaft of the mixing mechanism 14, and a scraper 6 is fixedly connected to the connecting rod 61, with the scraper 6 slidably connected to the inner wall of the reactor 11.

[0046] When the connecting plate 22 moves the baffle 21, the slider 5 at the bottom of the baffle 21 slides within the groove 51. The slider 5 and the groove 51 guide the baffle 21, thereby increasing the stability of the feed pipe 12 during reciprocating movement. The protective frame 4 on top of the reactor 11 shields the lead screw 24 and threaded block 25 during operation to prevent accidental contact and injury. When the stirring shaft in the mixing mechanism 14 rotates, it drives the connecting rod 61 to rotate as well. The scraper 6 connected to the connecting rod 61 cleans the inner wall of the reactor 11 during material mixing, preventing material from adhering to the inner wall of the reactor 11 and affecting the reaction efficiency.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A potassium sulfate processing reactor, comprising a main component (1), said main component (1) comprising: The reactor (11) has a feed pipe (12) at its top. An exhaust pipe (13) is provided on the top of the reactor (11); A mixing mechanism (14) is disposed on the reactor (11); The feature is that: an additive assembly (2) is provided on the reactor (11) and the feed pipe (12), the additive assembly (2) comprising: A baffle (21) is slidably connected to the top of the reactor (11), and one end of the baffle (21) extends through and into the inside of the feed pipe (12); A connecting plate (22) is fixedly connected to the end of the baffle (21) away from the feed pipe (12); The support (23) is symmetrically and fixedly connected to the top of the reactor (11); The lead screw (24) is rotatably connected between the brackets (23); A threaded block (25) is threaded to the outside of the lead screw (24). The threaded block (25) is slidably connected to the top of the reactor (11) and fixedly connected to the end of the connecting plate (22) away from the baffle (21). A servo motor (26) is located on the top of the reactor (11), and the output shaft of the servo motor (26) is fixedly connected to one end of the lead screw (24).

2. The potassium sulfate processing reactor according to claim 1, characterized in that: A sealing element (27) is provided at the connection between the feed pipe (12) and the baffle (21), and the baffle (21) is slidably connected to the inner wall of the sealing element (27).

3. A potassium sulfate processing reactor as claimed in claim 2, characterized in that: The baffle (21) and the connecting plate (22) are provided with a disassembly assembly (3), the disassembly assembly (3) including: A connecting block (31) is fixedly connected to one end of the baffle (21) near the connecting plate (22); A connecting groove (32) is provided at one end of the connecting plate (22) near the baffle (21); Bolt (33) is threaded into the threaded hole opened on the connecting block (31) and the connecting groove (32).

4. A potassium sulfate processing reactor as claimed in claim 3, characterized in that: The bottom of the baffle (21) is fixedly connected to a slider (5), and the top of the reactor (11) is provided with a groove (51), and the slider (5) is slidably connected in the groove (51).

5. A potassium sulfate processing reactor as claimed in claim 4, characterized in that: A protective frame (4) is placed on top of the reactor (11). The protective frame (4) is fitted on the top of the support (23), the lead screw (24) and the threaded block (25). A through groove is provided on the protective frame (4) for the connecting plate (22) to move.

6. A potassium sulfate processing reactor as claimed in claim 5, characterized in that: The mixing mechanism (14) has a connecting rod (61) symmetrically and fixedly connected to the outer wall of the stirring shaft. A scraper (6) is fixedly connected to the connecting rod (61), and the scraper (6) is slidably connected to the inner wall of the reactor (11).

Images