Efficient, energy-saving and environment-friendly Mannheim furnace device for manufacturing potassium sulfate

Abstract

The invention discloses an efficient, energy-saving and environment-friendly Mannheim furnace device for manufacturing potassium sulfate, and belongs to the technical field of potassium sulfate manufacturing. The device comprises a furnace body, supporting legs, an isolation layer, a turbulence box arranged in a protection box, a combustor, a mixed gas pipe, a potassium chloride feeding pipe, a sulfuric acid feeding pipe, a potassium chloride staggered smashing assembly used for rapidly smashing blocky potassium chloride, a rotating shaft A and a dispersion rotating disc. The dispersing and discharging assembly is used for dispersing reactants to increase the reaction contact area and discharging products, the barrel body A, the barrel body B and the barrel body C are coaxially arranged, the gas turbulence mixing assembly is used for mixing combustion-supporting gas and natural gas in a turbulence mode, and the turbulence mixing driving assembly is used for driving the gas turbulence mixing assembly to work. The efficient, energy-saving and environment-friendly Mannheim furnace device is reasonable in structure, gas and combustion-supporting gas can be mixed in a forced turbulence mode, and the potassium sulfate manufacturing efficiency can be remarkably improved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of potassium sulfate manufacturing, and in particular to a Mannheim furnace device for manufacturing potassium sulfate with high efficiency, energy saving and environmental protection. Background Art

[0002] Potassium sulfate has low hygroscopicity, is not easy to agglomerate, has good physical properties, is easy to apply, and is a good water-soluble potash fertilizer. In the chemical industry, potassium sulfate production usually adopts the Mannheim production process, that is, a combustion chamber and a reaction chamber are used to build a Mannheim furnace, natural gas and air are mixed in the combustion chamber according to a volume ratio of 1:9.5, and the heat generated by the combustion of natural gas is supplied to the reaction chamber. Potassium sulfate is generated by reacting potassium chloride and sulfuric acid in the reaction chamber as raw materials. Although the existing technology uses a Mannheim furnace to manufacture potassium sulfate, it still has certain defects: First, air is used as the combustion-supporting gas during the combustion process, and the reaction will generate nitrogen oxides, causing emission pollution; and because the natural gas and the combustion-supporting gas are not mixed evenly, the natural gas combustion is not sufficient, and the amount of natural gas is too large; second, potassium chloride is easily blocked in the process of feeding to the reaction chamber due to moisture agglomeration, and the contact between potassium chloride and sulfuric acid during the reaction is insufficient, resulting in incomplete reaction of potassium chloride. Therefore, there is an urgent need for an efficient and environmentally friendly Mannheim furnace device for manufacturing potassium sulfate. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the present invention provides a high-efficiency, energy-saving and environmentally friendly Mannheim furnace device with a reasonable structure, which can implement forced turbulent mode mixing of fuel gas and supporting gas and can significantly improve potassium sulfate manufacturing efficiency.

[0004] In order to solve the above problems, the solution proposed by the present invention is: a Mannheim furnace device for manufacturing potassium sulfate with high efficiency, energy saving and environmental protection, including a furnace body, a supporting leg arranged at the bottom of the outer side of the furnace body, and an isolation layer that divides the interior of the furnace body into a combustion chamber and a reaction chamber, and also includes: a protection box fixedly installed on the outer side of the furnace body, a turbulence box arranged inside the protection box, a burner with two ends respectively located inside the protection box and inside the combustion chamber, a mixing gas pipe with two ports connected to the burner and the turbulence box, a potassium chloride feed pipe with an upper end located outside the furnace body and a lower end passing through the combustion chamber and extending to the reaction chamber , a sulfuric acid feed pipe with an upper end located outside the furnace body and a lower end passing through the combustion chamber and extending into the reaction chamber, a potassium chloride staggered crushing assembly, a rotating shaft A which is installed in the reaction chamber and rotates along the vertical direction and has a lower end extending outside, a dispersion turntable fixedly installed on the upper end of the rotating shaft A, a dispersion unloading assembly, a barrel body A whose closed end is connected to the combustion-supporting pipe A and whose open end leads to the inside of the turbulence box, a barrel body B whose closed end is sleeved on the outside of the barrel body A and whose open end leads to the inside of the turbulence box, a barrel body C whose closed end is sleeved on the outside of the barrel body B and whose open end leads to the inside of the turbulence box, a gas turbulent mixing assembly, and a turbulent mixing drive assembly.

[0005] The potassium chloride staggered crushing component is arranged on the side wall of the potassium chloride feed pipe, and is used for quickly crushing the blocky potassium chloride in the potassium chloride feed pipe; the dispersion unloading component is arranged between the dispersion turntable and the potassium chloride feed pipe, and increases the reaction contact area by dispersing the reactant potassium chloride, and discharges the product potassium sulfate; the gas turbulent mixing component is arranged inside the turbulence box, and is used for quickly and evenly mixing the supporting combustion gas and the natural gas in a turbulent mode; the turbulent mixing drive component is arranged inside the turbulence box, and is used to drive the gas turbulent mixing component to work.

[0006] The interior of the barrel body B is connected to the natural gas pipe, the interior of the barrel body C is connected to the combustion-supporting gas pipe B, and a plurality of penetrating discharge holes are provided on the dispersion turntable.

[0007] Furthermore, the gas turbulence mixing assembly includes: an isolation plate fixedly mounted inside the turbulence box, a turbulence shaft rotatably mounted on the isolation plate, a turbulence sleeve rotatably sleeved on the middle of the turbulence shaft, an impeller A fixedly mounted on the left end of the turbulence shaft, and an impeller B fixedly mounted on the left end of the turbulence sleeve; the turbulence shaft is coaxially mounted with the barrel A, and the impeller A and impeller B rotate in opposite directions at the same time, so as to implement uniform mixing of the two gases from the barrel A, the barrel B and the barrel C in a reverse turbulence mode.

[0008] Furthermore, the turbulent mixing drive assembly includes: a gear ring fixedly mounted on the turbulent sleeve, a driving wheel fixedly mounted on the turbulent shaft, a wheel axle rotatably mounted on the isolation plate and with its axis parallel to the turbulent shaft, an idler wheel fixedly mounted on the wheel axle and meshing with the gear ring, and a motor A driving the turbulent shaft to rotate; the driving wheel and the idler wheel are externally meshing for transmission.

[0009] Furthermore, the potassium chloride staggered crushing assembly includes: a support frame fixedly mounted inside the furnace body, a winding wheel rotatably mounted on the support frame, a push plate A arranged outside the potassium chloride feed pipe, a plurality of crushing rods A fixedly mounted on the push plate A in the horizontal direction and sliding through the single side wall of the potassium chloride feed pipe, a push plate B arranged outside the potassium chloride feed pipe, a plurality of crushing rods B fixedly mounted on the push plate B in the horizontal direction and sliding through the single side wall of the potassium chloride feed pipe, an impact spring A whose two ends are respectively fixedly connected to the push plate A and the support frame, an impact spring B whose two ends are respectively fixedly connected to the push plate B and the support frame, a traction rope whose two ends are respectively connected to the push plate A and the push plate B and the middle part is wound around the winding wheel, and a crushing motor that drives the winding wheel to rotate forward and reversely; the push plate A is located above the push plate B, and the movement directions of the two are always opposite.

[0010] Furthermore, the dispersion and unloading assembly includes: an upper dispersion plate arranged at the bottom of the potassium chloride feed pipe, a plurality of upper dispersion holes opened in the upper dispersion plate, a lower dispersion plate arranged at the upper left of the dispersion turntable, a plurality of lower dispersion holes opened in the lower dispersion plate, and a plurality of dispersion tubes whose two ends are respectively connected with the upper dispersion holes and the lower dispersion holes; the number of the upper dispersion holes is equal to the number of the lower dispersion holes and the number of dispersion tubes, and the plurality of the upper dispersion holes is matched with the plurality of the lower dispersion holes and the plurality of the dispersion tubes in a one-to-one correspondence; the lower dispersion plate is located above the dispersion turntable and is placed along the radial direction of the dispersion turntable.

[0011] Furthermore, the dispersion unloading assembly also includes: a unloading lifting frame that is slidably but non-rotatably sleeved on the rotating shaft A, a plurality of unloading rods whose lower ends are fixedly mounted on the unloading lifting frame, and an unloading spring sleeved on the rotating shaft A; the upper and lower ends of the unloading spring are respectively fixedly connected to the unloading lifting frame and the rotating shaft A; the number of the unloading rods is equal to the number of the unloading holes, and the outer diameter of the unloading rod is matched with the inner diameter of the unloading hole; when the unloading lifting frame is at the highest position, the upper end of the unloading rod is inserted into the corresponding unloading hole, so that the top surface of the unloading rod is flush with the upper end surface of the dispersion turntable; when the unloading lifting frame is at the lowest position, the upper end of the unloading rod withdraws from the corresponding unloading hole.

[0012] Furthermore, the present invention also includes an oxygen production component capable of separating oxygen and nitrogen in the air; the oxygen production component is provided with an air inlet pipe and an oxygen outlet pipe, and the oxygen outlet pipe is connected to the combustion-supporting gas pipe A and the combustion-supporting gas pipe B through a three-way valve.

[0013] Furthermore, the present invention also includes: a sulfuric acid spraying rod arranged below the sulfuric acid feed pipe and capable of uniformly spraying sulfuric acid on the dispersion turntable in the radial direction, a hydrogen chloride exhaust pipe arranged on the side wall of the reaction chamber, and a potassium sulfate discharge pipe arranged at the bottom of the furnace body.

[0014] Furthermore, the present invention also includes a crushing disc fixedly mounted on the rotating shaft A, a plurality of crushing rods with upper ends fixedly mounted on the crushing disc, and a motor B driving the rotating shaft A to rotate.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: the present invention is provided with an oxygen production component and a gas turbulent mixing component, and under the action of the turbulent mixing driving component, the concentric column oxygen layer, the natural gas layer and the oxygen layer can be quickly and evenly mixed in a turbulent mode; the potassium chloride staggered crushing component in the present invention can staggered crush the agglomerated potassium chloride inside the potassium chloride feed pipe, which not only effectively prevents the potassium chloride from being blocked during the transportation process due to agglomeration, but also indirectly increases the contact area of ​​potassium chloride and sulfuric acid reaction; in addition, the present invention is also provided with a dispersing and unloading component, so that the potassium chloride powder can be more evenly distributed radially and circumferentially along the dispersing turntable, directly increasing the reaction contact area of ​​potassium chloride and sulfuric acid, and at the same time, the dispersing and unloading component can automatically unload the resultant potassium sulfate with the help of the passive compression of the unloading spring. It can be seen from this that the present invention is a high-efficiency, energy-saving and environmentally friendly Mannheim furnace device with a reasonable structure, which can implement forced turbulent mode mixing of fuel gas and combustion-supporting gas, and can significantly improve the efficiency of potassium sulfate manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the structural principle of a Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection.

[0017] Figure 2 yes Figure 1 A magnified view of the local structure of part A.

[0018] Figure 3 yes Figure 1 A magnified view of the local structure of part B.

[0019] Figure 4 yes Figure 1 A magnified view of the local structure of part C.

[0020] Figure 5It is a schematic diagram of the working principle of the Mannheim furnace device when the potassium chloride staggered crushing assembly is in another working state.

[0021] Figure 6 It is a schematic diagram of the working principle of the Mannheim furnace device when the unloading lifting frame is in the lowest position.

[0022] In the figure, 11 is the furnace body; 110 is the isolation layer; 111 is the combustion chamber; 112 is the reaction chamber; 12 is the burner; 13 is the dispersion turntable; 130 is the discharge hole; 14 is the rotating shaft A; 15 is the protection box; 16 is the turbulence box; 17 is the mixed gas pipe; 18 is the support leg; 21 is the barrel A; 22 is the barrel B; 23 is the barrel C; 24 is the combustion-supporting pipe A; 25 is the combustion-supporting pipe B; 26 is the natural gas pipe; 31 is the isolation plate; 32 is the turbulence shaft; 33 is the turbulence sleeve; 34 is the impeller A; 35 is the impeller B; 41 is the gear ring; 42 is the driving wheel; 43 is the idler wheel; 44 is the axle; 45 is the motor A; 5 is the potassium chloride staggered crushing assembly; 51 is the support frame; 52 is the winding wheel ; 53—traction rope; 54—push plate A; 55—crushing rod A; 56—impact spring A; 57—push plate B; 58—crushing rod B; 59—impact spring B; 6—dispersion and unloading assembly; 61—upper dispersion plate; 610—upper dispersion hole; 62—dispersion pipe; 63—lower dispersion plate; 630—lower dispersion hole; 64—unloading lifting frame; 65—unloading rod; 66—unloading spring; 71—crushing turntable; 72—crushing rod; 81—potassium chloride feed pipe; 82—sulfuric acid feed pipe; 820—sulfuric acid spraying rod; 83—potassium sulfate discharge pipe; 84—hydrogen chloride exhaust pipe; 85—motor B; 86—linear bearing; 9—oxygen production assembly; 91—air inlet pipe; 92—oxygen outlet pipe. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] See also Figure 1 , Figure 5 and Figure 6The present invention discloses a Mannheim furnace device for manufacturing potassium sulfate with high efficiency, energy saving and environmental protection, comprising a furnace body 11, a supporting leg 18 arranged at the bottom of the outer side of the furnace body 11, and an isolation layer 110 for dividing the interior of the furnace body 11 into a combustion chamber 111 and a reaction chamber 112, a protection box 15 fixedly mounted on the outer side of the furnace body 11, a turbulence box 16 arranged inside the protection box 15, a burner 12 whose two ends are respectively located inside the protection box 15 and inside the combustion chamber 111, a mixed gas pipe 17 whose two ports are connected to the burner 12 and the turbulence box 16, a potassium chloride feed pipe 81 whose upper end is located outside the furnace body 11 and whose lower end passes through the combustion chamber 111 and extends to the reaction chamber 112, a sulfuric acid feed pipe 82 whose upper end is located outside the furnace body 11 and whose lower end passes through the combustion chamber 111 and extends to the reaction chamber 112, a potassium chloride staggered crushing assembly 5, and a lead-acid mixing pipe 81 arranged inside the protection box 15 and inside the combustion chamber 111. A rotating shaft A14 which is vertically rotatably installed inside the reaction chamber 112 and whose lower end extends outside, a dispersion turntable 13 which is fixedly installed on the upper end of the rotating shaft A14, a dispersion unloading assembly 6, a barrel body A21 whose closed end is connected to the combustion-supporting pipe A24 and whose open end leads to the inside of the turbulence box 16, a barrel body B22 whose closed end is sleeved on the outside of the barrel body A21 and whose open end leads to the inside of the turbulence box 16, a barrel body C23 whose closed end is sleeved on the outside of the barrel body B22 and whose open end leads to the inside of the turbulence box 16, a gas turbulent mixing assembly, a turbulent mixing drive assembly, an oxygen production assembly 9 which can separate oxygen and nitrogen in the air, a sulfuric acid spraying rod 820 which is arranged below the sulfuric acid feed pipe 82 and can evenly spray sulfuric acid on the dispersion turntable 13 in the radial direction, a hydrogen chloride exhaust pipe 84 arranged on the side wall of the reaction chamber 112, and a potassium sulfate discharge pipe 83 arranged at the bottom of the furnace body 11. Preferably, the present invention further comprises a crushing disc 71 fixedly mounted on the rotating shaft A14, a plurality of crushing rods 72 fixedly mounted on the crushing disc 71 at the upper end, and a motor B85 driving the rotating shaft A14 to rotate. The interior of the barrel B22 is connected to the natural gas pipe 26, the interior of the barrel C23 is connected to the combustion-supporting pipe B25, and a plurality of penetrating discharge holes 130 are provided on the dispersion disc 13. Preferably, the oxygen production component 9 is provided with an air inlet pipe 91 and an oxygen outlet pipe 92, and the oxygen outlet pipe 92 is connected to the combustion-supporting pipe A24 and the combustion-supporting pipe B25 through a three-way valve. During specific implementation, the furnace body 11 is made of a heat-insulating material for its outer shell, and the isolation layer 110 inside the furnace body 11 is made of a heat-conducting material, so as to facilitate the rapid transfer of heat from the combustion chamber 111 to the reaction chamber 112 to promote the chemical reaction between potassium chloride and sulfuric acid; a rolling bearing is sleeved on the bottom of the rotating shaft A14 and then rotatably connected to the bottom of the furnace body 11, thereby realizing the rotatable installation of the rotating shaft A14; the barrel body A21, barrel body B22 and barrel body C23 are hollow cylinders with successively increasing inner diameters, and all three are closed at one end and open at the other end.As a first embodiment, barrel A21 passes through the closed end of barrel B22, barrel B22 passes through the closed end of barrel C23, and barrel A21, barrel B22 and barrel C23 are coaxially installed; oxygen production assembly 9 is a prior art, and an oxygen production machine using air separation technology or an oxygen production machine using molecular sieve physical adsorption and desorption technology can be selected; sulfuric acid spraying rod 820 is provided with a plurality of spraying heads arranged in a straight line and internally connected to sulfuric acid feed pipe 82, so that when dispersion turntable 13 rotates, sulfuric acid spraying rod 820 can spray sulfuric acid solution to potassium chloride powder scattered on dispersion turntable 13, directly increasing the contact between reactant potassium chloride and sulfuric acid. contact area, thereby improving the reaction efficiency; natural gas flows into the barrel B22 through the natural gas pipe 26, and air flows into the oxygen production component 9 through the air inlet pipe 91. The oxygen produced by the oxygen production component 9 flows out through the oxygen outlet pipe 92, and enters the combustion-supporting pipe A24 and the combustion-supporting pipe B25 after diversion, and then flows into the barrel A21 and the barrel C23 respectively, so that the mixed gas flowing in along the turbulence box 16 forms concentric columnar oxygen layers, natural gas layers and oxygen layers from the inside to the outside on the cross section, which facilitates the gas turbulence mixing component to better implement the uniform mixing of oxygen and natural gas, and the volume flow ratio of natural gas to air is controlled to be 1:9.5. The oxygen production component 9 is set so that no nitrogen oxides are generated during the combustion process, the natural gas burns more fully, and the combustion is more environmentally friendly and energy-saving. The crushing turntable 71 rotates to drive the crushing rod 72 to crush the potassium sulfate produced at the bottom of the furnace body 11, so that the potassium sulfate can be smoothly sent out from the potassium sulfate discharge pipe 83.

[0025] See also Figure 1 and Figure 3The potassium chloride interlaced crushing assembly 5 is arranged on the side wall of the potassium chloride feed pipe 81, and is used to quickly crush the blocky potassium chloride in the potassium chloride feed pipe 81. Preferably, the potassium chloride interlaced crushing assembly 5 includes: a support frame 51 fixedly mounted inside the furnace body 11, a winding wheel 52 rotatably mounted on the support frame 51, a push plate A54 arranged outside the potassium chloride feed pipe 81, a plurality of crushing rods A55 fixedly mounted on the push plate A54 in the horizontal direction and sliding through the single side wall of the potassium chloride feed pipe 81, a push plate B57 arranged outside the potassium chloride feed pipe 81, and a plurality of crushing rods A55 fixedly mounted on the push plate B57 in the horizontal direction and sliding through the potassium chloride feed pipe. The crushing rod B58 on the single side wall of the material tube 81, the impact spring A56 whose two ends are fixedly connected to the push plate A54 and the support frame 51 respectively, the impact spring B59 whose two ends are fixedly connected to the push plate B57 and the support frame 51 respectively, the traction rope 53 whose two ends are connected to the push plate A54 and the push plate B57 respectively and whose middle part is wound on the winding wheel 52, and the crushing motor (not shown in the figure) that drives the winding wheel 52 to rotate forward and reversely; the push plate A54 is located above the push plate B57, and the movement directions of the two are always opposite. In specific implementation, the push plate A54 and the push plate B57 have exactly the same structure, the number of crushing rods A55 is the same as the number of crushing rods B58, and the array mode of crushing rods A55 on the push plate A54 is also the same as the array mode of crushing rods B58 on the push plate B57; the impact spring A56 and the impact spring B59 are always in a compressed state.

[0026] See also Figure 1 , Figure 4 and Figure 6The dispersing and unloading component 6 is arranged between the dispersing turntable 13 and the potassium chloride feed pipe 81, and increases the reaction contact area by dispersing the reactant potassium chloride, and discharges the product potassium sulfate. Preferably, the dispersing and unloading component 6 includes: an upper dispersing plate 61 arranged at the bottom of the potassium chloride feed pipe 81, a plurality of upper dispersing holes 610 opened in the upper dispersing plate 61, a lower dispersing plate 63 arranged at the upper left of the dispersing turntable 13, a plurality of lower dispersing holes 630 opened in the lower dispersing plate 63, a plurality of dispersing tubes 62 respectively connected with the upper dispersing holes 610 and the lower dispersing holes 630 at both ends, a dispersing lifting frame 64 slidably but not rotatingly sleeved on the rotating shaft A14, a plurality of dispersing rods 65 whose lower ends are fixedly mounted on the dispersing lifting frame 64, and a dispersing spring 66 sleeved on the rotating shaft A14; the upper and lower ends of the dispersing spring 66 are respectively fixedly connected with the dispersing lifting frame 64 and the rotating shaft A14. The number of upper dispersion holes 610 is equal to the number of lower dispersion holes 630 and the number of dispersion tubes 62, and a plurality of upper dispersion holes 610 are matched with a plurality of lower dispersion holes 630 and a plurality of dispersion tubes 62 in a one-to-one correspondence; the lower dispersion plate 63 is located above the dispersion turntable 13 and is placed along the radial direction of the dispersion turntable 13. The number of discharge rods 65 is equal to the number of discharge holes 130, and the outer diameter of the discharge rod 65 is matched with the inner diameter of the discharge hole 130; when the discharge lifting frame 64 is at the highest position, the upper end of the discharge rod 65 is inserted into the corresponding discharge hole 130, so that the top surface of the discharge rod 65 is flush with the upper end surface of the dispersion turntable 13; when the discharge lifting frame 64 is at the lowest position, the upper end of the discharge rod 65 withdraws from the corresponding discharge hole 130. In specific implementation, the discharge lifting frame 64 adopts a linear bearing 86 to be sleeved on the rotating shaft A14, so as to achieve sliding but not rotating installation. The lower dispersion plate 63 is a narrow rectangular plate, which is located on both sides of the rotating shaft A14 together with the sulfuric acid spraying rod 820. The upper dispersion hole 610 is circular, and the lower dispersion hole 630 is elliptical, with the major axis of the ellipse arranged along the radial direction of the dispersion rotating disk 13; the initial length and stiffness of the discharge spring 66 are selected so that when there is no potassium chloride on the dispersion rotating disk 13, the top surface of the discharge rod 65 is flush with the upper end surface of the dispersion rotating disk 13; when the product potassium sulfate and the reactant potassium chloride on the dispersion rotating disk 13 accumulate to a certain height, the discharge spring 66 undergoes a certain compression deformation, and the deformation is slightly greater than the thickness of the dispersion rotating disk 13.

[0027] See also Figure 1 and Figure 2The gas turbulence mixing assembly is arranged inside the turbulence box 16, and is used for implementing a turbulence mode for rapid and uniform mixing of the combustion-supporting gas and the natural gas. Preferably, the gas turbulence mixing assembly includes: a partition plate 31 fixedly mounted inside the turbulence box 16, a turbulence shaft 32 rotatably mounted on the partition plate 31, a turbulence sleeve 33 rotatably sleeved on the middle of the turbulence shaft 32, an impeller A34 fixedly mounted on the left end of the turbulence shaft 32, and an impeller B35 fixedly mounted on the left end of the turbulence sleeve 33; the turbulence shaft 32 is coaxially mounted with the barrel A21, and the impeller A34 and the impeller B35 rotate in opposite directions at the same time, so as to implement a reverse turbulence mode for uniform mixing of the two gases from the barrels A21, the barrels B22 and the barrels C23. During specific implementation, the isolation plate 31 divides the turbulence box 16 into two parts, one part is filled with natural gas and combustion-supporting gas, and the other part has only air inside, which is used to install the motor A45; as an implementation method one, the impeller A34 is located at the left end of the impeller B35, and the blades of the impeller A34 and the impeller B35 are oriented in opposite directions; the turbulence sleeve 33 is rotatably connected to the turbulence shaft 32 through a rolling bearing, thereby ensuring that the impeller A34 and the impeller B35 can rotate freely in opposite directions.

[0028] See also Figure 2 , the turbulent mixing drive assembly is arranged inside the turbulence box 16, and is used to drive the gas turbulent mixing assembly to work. Preferably, the turbulent mixing drive assembly includes: a gear ring 41 fixedly mounted on the turbulence sleeve 33, a driving wheel 42 fixedly mounted on the turbulence shaft 32, an axle 44 rotatably mounted on the isolation plate 31 and with its axis parallel to the turbulence shaft 32, an idler wheel 43 fixedly mounted on the axle 44 and meshingly driven with the gear ring 41, and a motor A45 driving the turbulence shaft 32 to rotate; the driving wheel 42 and the idler wheel 43 are meshingly driven externally. In specific implementation, the gear ring 41 is fixed to the right end of the turbulence sleeve 33 through a gear ring frame, and the turbulence shaft 32 is rotatably connected to the isolation plate 31 through a rolling bearing. When the turbulent mixing drive assembly is working, it can drive the impeller A34 and the impeller B35 to rotate in opposite directions.

[0029] The working principle of the gas turbulent mixing component of the present invention is as follows: under the action of the turbulent mixing drive component, the turbulent shaft 32 and the turbulent sleeve 33 rotate in opposite directions, that is, the turbulent shaft 32 drives the impeller A34 to rotate counterclockwise, and at the same time the turbulent sleeve 33 drives the impeller B35 to rotate in the opposite direction. Since the barrels A21, B22 and C23 are coaxially arranged, and the open ends are all facing the inside of the turbulence box 16, the gas flowing out from the open end forms three concentric cylindrical layers, that is, the gas layers from the inside to the outside on the cross section are oxygen layer, natural gas layer and oxygen layer in sequence; this airflow pattern of the natural gas layer sandwiched by two oxygen layers flows through the impeller A34 rotating in the counterclockwise direction, forming a forced turbulent mixing in the counterclockwise direction, so that the mixing efficiency of natural gas and oxygen is significantly improved, and the mixing is more uniform; the airflow mixed by the impeller A34 flows to the impeller B35 rotating in the clockwise direction, forming a forced turbulent mixing in the clockwise direction, and the secondary turbulent mixing further improves the mixing uniformity of natural gas and oxygen; the uniformly mixed oxygen and natural gas flow to the burner 12 through the mixed gas pipe 17 and burn inside the combustion chamber 111. The uniform mixing of natural gas and oxygen can not only reduce the use of natural gas and save the production cost, but also reduce the emission of nitrogen oxides, making the emissions more environmentally friendly.

[0030] The working principle of the turbulent mixing drive assembly of the present invention is as follows: when the motor A45 rotates counterclockwise, it drives the turbulence shaft 32 to rotate counterclockwise, the driving wheel 42 fixedly mounted on the turbulence shaft 32 rotates counterclockwise, the idler wheel 43 meshing with the driving wheel 42 rotates clockwise, the gear ring 41 meshing with the idler wheel 43 rotates clockwise, and the gear ring 41 drives the turbulence sleeve 33 to rotate clockwise, so that the turbulence shaft 32 and the turbulence sleeve 33 rotate in opposite directions, and the impeller A34 and the impeller B35 rotate in opposite directions.

[0031] The working principle of the potassium chloride staggered crushing assembly 5 of the present invention is as follows: when the crushing motor (not shown in the figure) drives the winding wheel 52 to rotate counterclockwise, the traction rope 53 pulls the push plate B57 below to move to the right, and the crushing rod B58 slides outward along the lateral direction of the potassium chloride feed pipe 81, so that the crushed potassium chloride powder at the crushing rod B58 can fall quickly; at the same time, the traction rope 53 at the push plate A54 is in a relaxed and released state, and the push plate A54 moves to the left under the action of the elastic potential energy of the impact spring A56, and the crushing rod A55 slides inward along the lateral direction of the potassium chloride feed pipe 81, and the blocky potassium chloride inside the potassium chloride feed pipe 81 is crushed by elastic impact. When the pulverizing motor (not shown) drives the winding wheel 52 to rotate clockwise, the traction rope 53 pulls the push plate A54 above to move rightward, and the crushing rod A55 slides outward along the lateral direction of the potassium chloride feed pipe 81, so that the potassium chloride powder at the crushing rod A55 can fall quickly; at the same time, the traction rope 53 at the push plate B57 is in a relaxed release state, and the push plate B57 moves to the left under the action of the elastic potential energy of the impact spring B59, and the crushing rod B58 slides inward along the lateral direction of the potassium chloride feed pipe 81, and the elastic impact crushes the blocky potassium chloride inside the potassium chloride feed pipe 81. The pulverizing motor (not shown) drives the winding wheel 52 to continuously change the direction of rotation, thereby staggeredly crushing the agglomerated potassium chloride inside the potassium chloride feed pipe 81, which not only effectively prevents the potassium chloride from being blocked inside the potassium chloride feed pipe 81 due to agglomeration, but also indirectly increases the reaction contact area of ​​potassium chloride and sulfuric acid.

[0032] The working principle of potassium chloride dispersion of the dispersing and unloading assembly 6 of the present invention is as follows: the crushed potassium chloride in the potassium chloride feed pipe 81 flows to the lower dispersing hole 630 provided in the lower dispersing plate 63 through the upper dispersing hole 610 provided in the upper dispersing plate 61 and the dispersing pipe 62, and finally evenly sprinkles on the upper surface of the dispersing turntable 13. Since the shape of the lower dispersing hole 630 is elliptical, the major axis of the ellipse is arranged along the radial direction of the dispersing turntable 13, so that the potassium chloride powder is evenly distributed along the radial direction of the dispersing turntable 13; during the potassium chloride sprinkling process, the rotation of the rotating shaft A14 drives the dispersing turntable 13 to rotate slowly, so that the potassium chloride powder is more evenly distributed along the circumference of the dispersing turntable 13, and the potassium chloride powder evenly sprinkled along the radial and circumferential directions of the dispersing turntable 13 significantly increases the contact area of ​​potassium chloride and sulfuric acid reaction.

[0033] The potassium sulfate unloading working principle of the dispersing unloading assembly 6 of the present invention is as follows: in the initial state, the unloading lifting frame 64 is at the highest position, at this time, the unloading spring 66 undergoes a small compression deformation under the combined action of the gravity of the unloading lifting frame 64 and the gravity of the unloading rod 65, and the top surface of the unloading rod 65 is flush with the upper end surface of the dispersing turntable 13; as the reaction proceeds, the reactants and products on the dispersing turntable 13 gradually increase, and the potassium sulfate on the upper end of the unloading rod 65 also increases, that is, the downward force on the unloading spring 66 also increases, and its compression deformation slowly increases, that is, the unloading lifting frame 64 descends, and the unloading rod 65 slides downward along the unloading hole 130; when the potassium sulfate on the upper end of the unloading rod 65 accumulates to a certain thickness, The gravity of the deposit makes the additional compression deformation of the unloading spring 66 slightly larger than the thickness of the dispersion turntable 13. At this time, the unloading lifting frame 64 is at the lowest position, the compression deformation of the unloading spring 66 is the largest, and the upper end of the unloading rod 65 is completely out of the unloading hole 130; during the whole process, the dispersion turntable 13, the unloading lifting frame 64 and the unloading rod 65 always keep rotating slowly and synchronously, so the potassium sulfate placed on the upper end of the unloading rod 65 will be thrown to the bottom of the furnace body 11 under the action of centrifugal force; after the potassium sulfate placed on the upper end of the unloading rod 65 is scattered, the force on the top of the unloading spring 66 becomes smaller again, the unloading spring 66 returns to the initial compression deformation again, and the unloading rod 65 rises back to the initial height position.

[0034] The above are only specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should fall within the protection scope of the present invention.

Claims

1. A Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection, comprising a furnace body (11), a support leg (18) arranged at the bottom of the outer side of the furnace body (11), and an isolation layer (110) for dividing the interior of the furnace body (11) into a combustion chamber (111) and a reaction chamber (112), characterized in that: Also includes: A protection box (15) fixedly mounted on the outside of the furnace body (11), a turbulence box (16) arranged inside the protection box (15), a burner (12) with two ends respectively located inside the protection box (15) and inside the combustion chamber (111), a mixed gas pipe (17) with two ports connected to the burner (12) and the turbulence box (16), a potassium chloride feed pipe (81) with an upper end located outside the furnace body (11) and a lower end passing through the combustion chamber (111) and extending to the reaction chamber (112), a sulfuric acid feed pipe (82) with an upper end located outside the furnace body (11) and a lower end passing through the combustion chamber (111) and extending to the reaction chamber (112), and a chlorine A potassium chloride staggered crushing assembly (5), a rotating shaft A (14) which is installed in the reaction chamber (112) in a vertical direction and extends outward from the lower end, a dispersing turntable (13) which is fixedly installed on the upper end of the rotating shaft A (14), a dispersing unloading assembly (6), a barrel body A (21) whose closed end is connected to a combustion-supporting gas pipe A (24) and whose open end leads to the inside of the turbulence box (16), a barrel body B (22) whose closed end is sleeved on the outside of the barrel body A (21) and whose open end leads to the inside of the turbulence box (16), a barrel body C (23) whose closed end is sleeved on the outside of the barrel body B (22) and whose open end leads to the inside of the turbulence box (16), a gas turbulence mixing assembly, and a turbulence mixing driving assembly; The potassium chloride staggered crushing component (5) is arranged on the side wall of the potassium chloride feed pipe (81) and is used to quickly crush the blocky potassium chloride in the potassium chloride feed pipe (81); the dispersing and unloading component (6) is arranged between the dispersing turntable (13) and the potassium chloride feed pipe (81) and increases the reaction contact area by dispersing the reactant potassium chloride and discharges the product potassium sulfate; the gas turbulent mixing component is arranged inside the turbulence box (16) and is used to quickly and evenly mix the combustion-supporting gas and the natural gas in a turbulent mode; the turbulent mixing driving component is arranged inside the turbulence box (16) and is used to drive the gas turbulent mixing component to work; The interior of the barrel body B (22) is connected to a natural gas pipe (26), the interior of the barrel body C (23) is connected to a combustion-supporting gas pipe B (25), and the dispersion rotating disk (13) is provided with a plurality of penetrating discharge holes (130).

2. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1 is characterized in that: The gas turbulence mixing assembly comprises: a partition plate (31) fixedly mounted inside the turbulence box (16), a turbulence shaft (32) rotatably mounted on the partition plate (31), a turbulence sleeve (33) rotatably sleeved on the middle of the turbulence shaft (32), an impeller A (34) fixedly mounted on the left end of the turbulence shaft (32), and an impeller B (35) fixedly mounted on the left end of the turbulence sleeve (33); the turbulence shaft (32) is coaxially mounted with the barrel body A (21), and the impeller A (34) and the impeller B (35) rotate in opposite directions at the same time, so as to implement uniform mixing of two gases from the barrel body A (21), the barrel body B (22) and the barrel body C (23) in a reverse turbulence mode.

3. A Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 2, characterized in that: The turbulent mixing drive assembly comprises: a gear ring (41) fixedly mounted on the turbulent sleeve (33), a driving wheel (42) fixedly mounted on the turbulent shaft (32), a wheel axle (44) rotatably mounted on the isolation plate (31) and having an axis parallel to the turbulent shaft (32), an idler wheel (43) fixedly mounted on the wheel axle (44) and internally meshing with the gear ring (41), and a motor A (45) driving the turbulent shaft (32) to rotate; the driving wheel (42) and the idler wheel (43) are externally meshing for transmission.

4. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1 is characterized in that: The potassium chloride interlaced crushing assembly (5) comprises: a support frame (51) fixedly mounted inside the furnace body (11), a winding wheel (52) rotatably mounted on the support frame (51), a push plate A (54) arranged outside the potassium chloride feeding pipe (81), a plurality of crushing rods A (55) fixedly mounted on the push plate A (54) in a horizontal direction and sliding through a single side wall of the potassium chloride feeding pipe (81), a push plate B (57) arranged outside the potassium chloride feeding pipe (81), a plurality of crushing rods A (55) fixedly mounted on the push plate B (57) in a horizontal direction and sliding through a single side wall of the potassium chloride feeding pipe (81), and a plurality of crushing rods A (55) fixedly mounted on the push plate B (57) in a horizontal direction and sliding through a single side wall of the potassium chloride feeding pipe (81). A crushing rod B (58) on a single side wall of the material tube (81), an impact spring A (56) whose two ends are respectively fixedly connected to the push plate A (54) and the support frame (51), an impact spring B (59) whose two ends are respectively fixedly connected to the push plate B (57) and the support frame (51), a traction rope (53) whose two ends are respectively connected to the push plate A (54) and the push plate B (57) and the middle part is wound around the winding wheel (52), and a crushing motor for driving the winding wheel (52) to rotate forward and reverse; the push plate A (54) is located above the push plate B (57), and the movement directions of the two are always opposite.

5. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1 is characterized in that: The dispersing and unloading assembly (6) comprises: an upper dispersing plate (61) arranged at the bottom of the potassium chloride feeding pipe (81), a plurality of upper dispersing holes (610) opened in the upper dispersing plate (61), a lower dispersing plate (63) arranged at the upper left of the dispersing rotating disk (13), a plurality of lower dispersing holes (630) opened in the lower dispersing plate (63), and a plurality of dispersing tubes (62) whose two ends are respectively connected to the upper dispersing holes (610) and the lower dispersing holes (630); the number of the upper dispersing holes (610) is equal to the number of the lower dispersing holes (630) and the number of the dispersing tubes (62); the plurality of the upper dispersing holes (610) is matched with the plurality of the lower dispersing holes (630) and the plurality of the dispersing tubes (62) in a one-to-one correspondence; the lower dispersing plate (63) is located above the dispersing rotating disk (13) and is placed along the radial direction of the dispersing rotating disk (13).

6. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 5 is characterized in that: The dispersing unloading assembly (6) further comprises: an unloading lifting frame (64) which is slidably mounted on the rotating shaft A (14) without rotating, a plurality of unloading rods (65) whose lower ends are fixedly mounted on the unloading lifting frame (64), and an unloading spring (66) which is mounted on the rotating shaft A (14); the upper and lower ends of the unloading spring (66) are respectively fixedly connected to the unloading lifting frame (64) and the rotating shaft A (14); the number of the unloading rods (65) is the same as the number of the unloading holes (14); 30) are equal in number, the outer diameter of the discharge rod (65) is matched with the inner diameter of the discharge hole (130); when the discharge lifting frame (64) is at the highest position, the upper end of the discharge rod (65) is inserted into the corresponding discharge hole (130), so that the top surface of the discharge rod (65) is flush with the upper end surface of the dispersion turntable (13); when the discharge lifting frame (64) is at the lowest position, the upper end of the discharge rod (65) withdraws from the corresponding discharge hole (130).

7. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1 is characterized in that: It also includes an oxygen production component (9) capable of separating oxygen and nitrogen in the air; the oxygen production component (9) is provided with an air inlet pipe (91) and an oxygen outlet pipe (92), and the oxygen outlet pipe (92) is connected to the combustion-supporting gas pipe A (24) and the combustion-supporting gas pipe B (25) through a three-way valve.

8. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1 is characterized in that: Also includes: A sulfuric acid spraying rod (820) is arranged below the sulfuric acid feeding pipe (82) and is capable of uniformly spraying sulfuric acid on the dispersion rotating disk (13) in the radial direction; a hydrogen chloride exhaust pipe (84) is arranged on the side wall of the reaction chamber (112); and a potassium sulfate discharge pipe (83) is arranged at the bottom of the furnace body (11).

9. The Mannheim furnace device for producing potassium sulfate with high efficiency, energy saving and environmental protection according to claim 1, characterized in that: It also includes a crushing disc (71) fixedly mounted on the rotating shaft A (14), a plurality of crushing rods (72) with upper ends fixedly mounted on the crushing disc (71), and a motor B (85) for driving the rotating shaft A (14) to rotate.

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