Self-cleaning potassium sulfate crystallization reaction furnace

Abstract

The utility model discloses a self -cleaning type potassium sulfate crystallization reaction furnace, including furnace body and axle pipe, the furnace body top surface penetrates and is connected with axle pipe. Advantageous effect: the utility model discloses a gas outlet pipe, and the gas outlet pipe bottom mouth exhales, when heating crystallization to potassium sulfate, can pour potassium sulfate raw material liquid into the furnace body, and the air inlet pipe passes into the hot air current, and enters the axle pipe through the flow guide cover, and the driving motor drives the driving gear to rotate, and drives the gas outlet pipe, and potassium sulfate raw material liquid is stirred, and hot air is sprayed into potassium sulfate raw material liquid, and potassium sulfate raw material liquid is heated, and the moisture evaporation forms crystallization, and hot air directly and potassium sulfate raw material liquid fully contact, improve the hot evaporation crystallization speed, and the fully stirring improves the thermal distribution uniformity, and further improves the work efficiency, and simultaneously, the gas outlet pipe is distributed with multiple groups, and the distance of the gas outlet pipe and the axle pipe is different, thereby expanding the stirring range, improving the stirring efficiency, and further improving the work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of potassium sulfate production technology, and more specifically, to a self-cleaning potassium sulfate crystallization reactor. Background Technology

[0002] Potassium sulfate is an important fertilizer. The main method for producing potassium sulfate is to use concentrated sulfuric acid and potassium chloride as raw materials, reacting them at high temperatures to produce potassium sulfate and gaseous hydrogen chloride. Currently, the most commonly used reactor for producing potassium sulfate is the Mannheim furnace. The Mannheim furnace mainly consists of a single large furnace chamber and heating ducts surrounding the outer wall of the furnace chamber. The heating device supplies hot air to the heating ducts. There is a feed inlet and a by-product gas outlet at the top of the furnace chamber, and a product outlet near the bottom of the furnace chamber. Inside the furnace chamber, there is a stirring rake to stir the product and raw materials. The raw materials (KCl and concentrated H2SO4) enter the furnace chamber through the feed inlet and react rapidly under the heat provided by the heating ducts, producing K2SO4 and HCl gas. Under the stirring of the stirrer, the raw materials are mixed and react. The generated K2SO4 is discharged from the product outlet at the bottom of the furnace chamber, and the HCl gas enters the washing and absorption device from the by-product gas outlet at the top of the furnace chamber to form liquid hydrochloric acid.

[0003] Because the Mannheim furnace uses a heating duct for heating, the hot air cannot directly and evenly contact the raw materials, resulting in a reduction in the heating speed and uniformity of the raw materials, which affects the crystallization speed and work efficiency. Further improvements can be made. At the same time, after crystallization, the traditional Mannheim furnace is difficult to clean, causing maintenance difficulties, which can also be further improved.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a self-cleaning potassium sulfate crystallization reactor, which has the advantages of self-cleaning and improved working efficiency, thereby solving the problems mentioned in the background technology.

[0006] To achieve the aforementioned advantages of self-cleaning and improved work efficiency, the specific technical solution adopted by this utility model is as follows:

[0007] A self-cleaning potassium sulfate crystallization reactor includes a furnace body and a shaft tube. The shaft tube is rotatably connected to the top surface of the furnace body, and an outlet pipe is rotatably connected to the bottom surface of the shaft tube. A guide shroud is rotatably sleeved on the top surface of the shaft tube. A driven gear is fixedly sleeved on the top surface of the shaft tube, and a drive motor is fixedly installed on one side of the shaft tube on the top surface of the furnace body. The output end of the drive motor meshes with the driven gear through the drive gear. An inlet pipe is fixedly installed on the top surface of the furnace body through a bracket, and one end of the inlet pipe is rotatably connected to the guide shroud. Multiple sets of outlet pipes are distributed at equal angles along the central axis of the shaft tube, and the distance between the outlet pipes and the shaft tube is different. A cleaning ring is provided inside the furnace body.

[0008] Furthermore, bristles are fixedly installed on the outer edge surface of the cleaning ring, and a nozzle is connected through the bristles on the edge surface of the cleaning ring. A conduit is also connected through the top surface of the cleaning ring. A screw jack is fixedly installed on the top surface of the furnace body, and a connecting screw is connected to the output end of the screw jack. The bottom surface of the connecting screw is fixedly connected to the top surface of the cleaning ring. A cleaning water pump is connected through the top surface of the conduit via a flexible hose, and the conduit passes through the top surface of the furnace body and is slidably connected to the top surface of the furnace body.

[0009] Furthermore, the shaft tube is rotatably connected to the top surface of the furnace body via a sealed bearing, and the top of the shaft tube is rotatably connected to the bottom surface of the guide shroud via a sealed bearing, and the shaft tube is coaxially arranged with the furnace body.

[0010] Furthermore, an exhaust pipe is connected through the top surface of the furnace body, and the exhaust pipe is connected to a waste gas treatment device.

[0011] Furthermore, a furnace door is hinged to the bottom surface of the furnace body, and the furnace door is a sealed door.

[0012] Furthermore, the bottom surface of the furnace body is fixedly equipped with support legs, and multiple sets of support legs are arranged.

[0013] Furthermore, the nozzles are distributed in multiple sets at equal angles along the vertical central axis of the cleaning ring, and the water spray direction of the nozzles is directly facing the inner wall of the furnace.

[0014] Furthermore, the top surface of the furnace body is connected to a feed inlet, and a top cover is spirally sleeved on the top surface of the feed inlet.

[0015] Compared with the prior art, this utility model provides a self-cleaning potassium sulfate crystallization reactor, which has the following beneficial effects:

[0016] (1) This utility model adopts an exhaust pipe with gas exiting from the bottom of the exhaust pipe. When heating and crystallizing potassium sulfate, the potassium sulfate raw material liquid can be put into the furnace body, and the hot air flow is introduced through the air inlet pipe. The hot air enters the shaft tube through the guide shroud. The drive motor drives the drive gear to rotate, which drives the potassium sulfate raw material liquid in the exhaust pipe to stir. At the same time, hot air is sprayed into the potassium sulfate raw material liquid to heat the potassium sulfate raw material liquid, so that its water evaporates and crystals are formed. The hot air directly contacts the potassium sulfate raw material liquid fully, which improves the thermal evaporation and crystallization speed. The full stirring improves the heat distribution uniformity and further improves the working efficiency. At the same time, there are multiple sets of exhaust pipes, and the distance between the exhaust pipe and the shaft tube is different, thereby expanding the stirring range and improving the stirring efficiency, which further improves the working efficiency.

[0017] (2) This utility model adopts a liftable cleaning ring. The cleaning ring has a hollow structure inside. The hose is connected to the cleaning water pumping equipment. When crystallization is completed and cleaning is required, the staff can start the screw jack to drive the connecting screw to move up and down, thereby driving the cleaning ring to move up and down, driving the brush to clean the inner wall of the furnace. At the same time, the cleaning water enters the cleaning ring along the hose and the conduit, and sprays out along the nozzle for brushing. This eliminates the trouble of manual brushing and cleaning, improves the convenience of use, and facilitates maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the internal structure of a self-cleaning potassium sulfate crystallization reactor proposed in this utility model;

[0020] Figure 2 This is a front view of a self-cleaning potassium sulfate crystallization reactor proposed in this utility model;

[0021] Figure 3 This is an enlarged view of node A of a self-cleaning potassium sulfate crystallization reactor proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the air outlet pipe proposed in this utility model.

[0023] In the picture:

[0024] 1. Furnace body; 2. Shaft tube; 3. Flow guide shroud; 4. Support; 5. Air inlet pipe; 6. Drive motor; 7. Drive gear; 8. Driven gear; 9. Screw jack; 10. Connecting screw; 11. Exhaust pipe; 12. Cleaning ring; 13. Feed inlet; 14. Top cover; 15. Guide tube; 16. Hose; 17. Air outlet pipe; 18. Furnace door; 19. Nozzle; 20. Brush bristles. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a self-cleaning potassium sulfate crystallization reactor is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a self-cleaning potassium sulfate crystallization reactor according to an embodiment of the present invention includes a furnace body 1 and a shaft tube 2. The shaft tube 2 is rotatably connected to the top surface of the furnace body 1, and an outlet pipe 17 is rotatably connected to the bottom surface of the shaft tube 2. Gas exits from the bottom of the outlet pipe 17. A guide shroud 3 is rotatably sleeved on the top surface of the shaft tube 2. A driven gear 8 is fixedly sleeved on the top surface of the shaft tube 2. A drive motor 6 is fixedly installed on one side of the shaft tube 2 on the top surface of the furnace body 1, and the output end of the drive motor 6 meshes with the driven gear 8 through a drive gear 7, which is a common drive form. An inlet pipe 5 is fixedly installed on the top surface of the furnace body 1 through a bracket 4, and one end of the inlet pipe 5 is rotatably connected to the guide shroud 3. Multiple sets of outlet pipes 17 are distributed at equal angles along the central axis of the shaft tube 2, and the distance between the outlet pipes 17 and the shaft tube 2 is different. The furnace body 1 is equipped with a cleaning ring 12. When heating and crystallizing potassium sulfate, the potassium sulfate raw material liquid can be put into the furnace body 1. Hot air is introduced through the air inlet pipe 5, passes through the guide shroud 3 and enters the shaft tube 2. The drive motor 6 drives the drive gear 7 to rotate, which drives the air outlet pipe 17 to stir the potassium sulfate raw material liquid. At the same time, hot air is sprayed into the potassium sulfate raw material liquid to heat it, causing the water to evaporate and crystallize. The hot air directly contacts the potassium sulfate raw material liquid, which increases the thermal evaporation and crystallization speed. The thorough stirring improves the uniformity of heat distribution and further improves the working efficiency. At the same time, there are multiple sets of air outlet pipes 17, and the distance of the air outlet pipes 17 from the shaft tube 2 is different, which expands the stirring range and improves the stirring efficiency, further improving the working efficiency.

[0028] In one embodiment, bristles 20 are fixedly installed on the outer edge surface of the cleaning ring 12, and multiple sets of bristles 20 are densely and evenly arranged. A nozzle 19 is connected through the bristles 20 on the edge surface of the cleaning ring 12. A conduit 15 is connected through the top surface of the cleaning ring 12. A screw jack 9 is fixedly installed on the top surface of the furnace body 1, and a connecting screw 10 is connected to the output end of the screw jack 9. The bottom surface of the connecting screw 10 is fixedly connected to the top surface of the cleaning ring 12. A cleaning water pumping device is connected through the top surface of the conduit 15 via a hose 16. The conduit 15 passes through the top surface of the furnace body 1 and is connected to the top surface of the furnace body 1. The sliding connection and the guide pipe 15 serve as the lifting guide for the cleaning ring 12 and also provide water supply. The cleaning ring 12 has a hollow internal structure, and the hose 16 connects to the cleaning water pump. When crystallization is complete and cleaning is required, the operator can start the screw jack 9 to move the connecting screw 10 up and down, which in turn moves the cleaning ring 12 up and down, causing the brush 20 to clean the inner wall of the furnace body 1. At the same time, the cleaning water enters the cleaning ring 12 along the hose 16 and the guide pipe 15 and is sprayed out along the nozzle 19 for brushing, eliminating the trouble of manual brushing and cleaning, improving the convenience of use and facilitating maintenance.

[0029] In one embodiment, the shaft tube 2 is rotatably connected to the top surface of the furnace body 1 via a sealed bearing, and the top of the shaft tube 2 is rotatably connected to the bottom surface of the guide shroud 3 via a sealed bearing. The shaft tube 2 and the furnace body 1 are arranged coaxially to improve the stability of rotation and prevent air leakage.

[0030] In one embodiment, an exhaust pipe 11 is connected through the top surface of the furnace body 1, and the exhaust pipe 11 is connected to a waste gas treatment device, which is a common device in the art and is not shown in the figure.

[0031] In one embodiment, a furnace door 18 is hinged to the bottom surface of the furnace body 1, and the furnace door 18 is a sealed door to facilitate cleaning of crystals.

[0032] In one embodiment, the bottom surface of the furnace body 1 is fixedly equipped with support legs, and multiple sets of support legs are arranged to facilitate the installation of this device.

[0033] In one embodiment, multiple sets of nozzles 19 are distributed at equal angles along the vertical central axis of the cleaning ring 12, and the water spraying direction of the nozzles 19 is directly facing the inner wall of the furnace body 1, thereby improving the uniformity of water spraying and cleaning efficiency.

[0034] In one embodiment, a feed inlet 13 is connected through the top surface of the furnace body 1, and a top cover 14 is spirally sleeved on the top surface of the feed inlet 13 for convenient feeding.

[0035] Working principle:

[0036] When heating and crystallizing potassium sulfate, the potassium sulfate raw material solution can be put into the furnace body 1. Hot air is introduced through the air inlet pipe 5, passes through the guide shroud 3 and enters the shaft pipe 2. The drive motor 6 drives the drive gear 7 to rotate, which in turn drives the air outlet pipe 17 to stir the potassium sulfate raw material solution. At the same time, hot air is sprayed into the potassium sulfate raw material solution to heat it, causing the water to evaporate and crystallize. The hot air directly contacts the potassium sulfate raw material solution, which increases the thermal evaporation and crystallization speed. The thorough stirring improves the uniformity of heat distribution and further improves the working efficiency. Meanwhile, there are multiple sets of air outlet pipes 17, and the distance between the air outlet pipes 17 and the furnace body 1 is as follows: The varying distances from the shaft tube 2 expand the stirring range, improve stirring efficiency, and further enhance work efficiency. Simultaneously, the cleaning ring 12 has a hollow internal structure, with the hose 16 connected to a cleaning water pump. When crystallization is complete and cleaning is required, the operator can activate the screw jack 9 to move the connecting screw 10 up and down, thereby moving the cleaning ring 12 up and down and causing the brush 20 to clean the inner wall of the furnace body 1. At the same time, cleaning water enters the cleaning ring 12 along the hose 16 and conduit 15, and is sprayed out along the nozzle 19 for scrubbing, eliminating the hassle of manual scrubbing and improving ease of use and maintenance.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning potassium sulfate crystallization reactor, characterized in that, The furnace includes a furnace body (1) and a shaft tube (2). The top surface of the furnace body (1) is rotatably connected to the shaft tube (2), and the bottom surface of the shaft tube (2) is connected to the exhaust pipe (17). The top surface of the shaft tube (2) is rotatably fitted with a guide shroud (3). The top surface of the shaft tube (2) is fixedly fitted with a driven gear (8). A drive motor (6) is fixedly installed on one side of the shaft tube (2) on the top surface of the furnace body (1). The output end of the drive motor (6) meshes with the driven gear (8) through the drive gear (7). The top surface of the furnace body (1) is fixedly installed with an air inlet pipe (5) through a bracket (4). One end of the air inlet pipe (5) is connected to the guide shroud (3). The exhaust pipe (17) is distributed in multiple sets at equal angles along the central axis of the shaft tube (2). The distance between the exhaust pipe (17) and the shaft tube (2) is different. A cleaning ring (12) is provided inside the furnace body (1).

2. The self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The cleaning ring (12) has bristles (20) fixedly installed on its outer edge surface, and a nozzle (19) is connected between the bristles (20) on the edge surface of the cleaning ring (12). A conduit (15) is connected to the top surface of the cleaning ring (12). A screw jack (9) is fixedly installed on the top surface of the furnace body (1), and a connecting screw (10) is connected to the output end of the screw jack (9). The bottom surface of the connecting screw (10) is fixedly connected to the top surface of the cleaning ring (12). A cleaning water pumping device is connected to the top surface of the conduit (15) through a hose (16), and the conduit (15) passes through the top surface of the furnace body (1) and is slidably connected to the top surface of the furnace body (1).

3. The self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The shaft tube (2) is rotatably connected to the top surface of the furnace body (1) through a sealed bearing, and the top of the shaft tube (2) is rotatably connected to the bottom surface of the guide shroud (3) through a sealed bearing. The shaft tube (2) and the furnace body (1) are arranged coaxially.

4. The self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The top surface of the furnace body (1) is connected to an exhaust pipe (11), and the exhaust pipe (11) is connected to a waste gas treatment device.

5. The self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The furnace body (1) has a furnace door (18) hinged to its bottom surface, and the furnace door (18) is a sealed door.

6. The self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The furnace body (1) has legs fixedly installed on its bottom surface, and multiple sets of legs are arranged.

7. A self-cleaning potassium sulfate crystallization reactor according to claim 2, characterized in that, The nozzles (19) are distributed in multiple groups at equal angles along the vertical central axis of the cleaning ring (12), and the water spraying direction of the nozzles (19) is directly facing the inner wall of the furnace body (1).

8. A self-cleaning potassium sulfate crystallization reactor according to claim 1, characterized in that, The furnace body (1) has a through-connected feed inlet (13) on its top surface, and a top cover (14) is spirally sleeved on the top surface of the feed inlet (13).

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