A raw material crushing and mixing device for preparing desulfurization synergist

Abstract

The application discloses a raw material smashing and mixing device for preparing desulfurization synergist, and belongs to the technical field of desulfurization synergist preparation, which comprises a mixing tank, a smashing bin is fixedly connected to the upper end of the mixing tank, a discharge valve is arranged at the lower end of the mixing tank, a smashing assembly is arranged in the smashing bin, the smashing assembly comprises a feeding port fixedly connected to the upper end of the smashing bin, a first rectangular rod is driven by a motor to rotate a reciprocating screw rod, the reciprocating screw rod is engaged with a screw rod nut fixed to a supporting plate, and a grinding ball and a blade are driven to rotate and reciprocate up and down, so that the raw material is sheared and smashed, and the grinding ball and the inner wall of the smashing bin are extruded and ground; meanwhile, the grinding ball drives a grinding plate to rotate and displace up and down through a first spring and a rectangular block, the grinding plate is lowered to grind the incompletely smashed material again, and the material is fed into the lower side of the grinding plate through an inclined chute when the grinding plate is raised, so that layered grinding is realized. The structure enables the raw material to be smashed in multiple stages in one feeding process, and remarkably improves the smashing fineness and the smashing efficiency.

Description

Technical Field

[0001] This invention relates to the field of desulfurization enhancer preparation technology, and more specifically, to a raw material crushing and mixing device for preparing desulfurization enhancers. Background Technology

[0002] Sulfur dioxide (SO2) is a major pollutant in coal-fired flue gas, leading to environmental problems such as acid rain and smog. Currently, limestone-gypsum wet flue gas desulfurization (FGD) processes are commonly used in thermal power plants and industrial boilers. To further improve desulfurization efficiency, reduce the liquid-to-gas ratio, and decrease limestone consumption, desulfurization enhancers (additives) are typically added to the absorber slurry. These enhancers are usually made from a mixture of organic acids, surfactants, inorganic salts, and polymeric catalysts, produced through processes such as crushing, grinding, mixing, and granulation. The uniformity of the finished product's particle size and the degree of dispersion and mixing of its components directly affect the enhancer's dissolution rate and catalytic activity in the slurry.

[0003] In current desulfurization enhancer production, the crushing and mixing of raw materials mostly employs separate equipment—first, the raw materials are coarsely crushed by a jaw crusher or hammer mill, then finely crushed by a separate grinding equipment, and finally mixed in a horizontal or vertical mixer. This step-by-step processing method has the following drawbacks:

[0004] Separating the crushing and mixing processes requires intermediate transfer, which easily leads to dust dispersion and material loss, and increases equipment footprint and energy consumption. Conventional crushing relies solely on single-pass operations with cutters or rollers, making it difficult to simultaneously refine complex raw materials with significant differences in hardness (such as the coexistence of salts containing water of crystallization and organic polymers). This easily results in large particle residues or localized over-crushing, causing large particles to accumulate and clog the filter screen. Substandard materials need to be reprocessed and crushed again. Existing mixing equipment, relying solely on horizontal paddle stirring, is insufficient to fully disperse and blend fine powders and coarse particles, resulting in uneven distribution of the finished product components, which weakens the desulfurization efficiency. Although some integrated crushing and mixing devices stack the crushing chamber and mixing tank vertically, their crushing components are mostly fixed-axis rotary cutting.

[0005] Therefore, a raw material crushing and mixing device for preparing desulfurization enhancers is proposed. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a raw material crushing and mixing device for preparing desulfurization enhancer, which can improve the crushing effect of raw materials, and at the same time, can achieve a more uniform mixing effect through horizontal and vertical directions during mixing.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A raw material crushing and mixing device for preparing desulfurization enhancer includes a mixing tank, a crushing chamber fixedly connected to the upper end of the mixing tank, and a discharge valve provided at the lower end of the mixing tank;

[0009] The grinding chamber is equipped with a grinding component;

[0010] The pulverizing assembly includes a feed inlet fixedly connected to the upper end of the pulverizing chamber. A support plate is fixedly connected to the upper end of the feed inlet. A motor is fixedly connected to the upper end of the support plate. A first rectangular rod is fixedly connected to the output end of the motor. A reciprocating lead screw is slidably connected to the outer side of the first rectangular rod. A lead screw nut is fixedly connected inside the support plate. The inside of the lead screw nut meshes with the rod wall of the reciprocating lead screw. A grinding ball is fixedly connected to the lower end of the reciprocating lead screw. Blades are uniformly fixedly connected to the outer side of the grinding ball. A filter plate is fixedly connected to the lower end of the pulverizing chamber.

[0011] Preferably, a rectangular block is slidably connected to the lower end of the grinding ball, a first spring is fixedly connected to the upper end of the rectangular block, a grinding plate is fixedly connected to the lower end of the rectangular block, and an inclined groove is formed on the lower inner wall of the crushing chamber.

[0012] Preferably, a rotating rod is rotatably connected to the lower end of the filter plate, a second rectangular rod is fixedly connected to the lower end of the grinding plate, the lower end of the second rectangular rod is slidably connected to the upper end of the rotating rod, and a stirring rod is uniformly fixedly connected to the rod wall of the rotating rod.

[0013] Preferably, a support rod is fixedly connected to the lower inner wall of the mixing tank, a first bevel gear is fixedly connected to the upper end of the support rod, a second bevel gear is rotatably connected to the left side of the rotating rod, the first bevel gear and the second bevel gear are meshed together, a rotating plate is fixedly connected to the left side of the second bevel gear, and inclined rods are fixedly connected to the upper and lower positions on the left side of the rotating plate.

[0014] Preferably, a rotating ring is rotatably connected to the lower end of the crushing chamber, a protrusion is slidably connected inside the rotating ring, a second spring is fixedly connected to one end of the protrusion, a vibrating block is uniformly fixedly connected to the lower end of the crushing chamber, and a connecting rod is fixedly connected to the lower end of the rotating ring, the connecting rod being fixedly connected to the rotating ring.

[0015] Preferably, the outer side of the rotating rod is provided with a sliding groove, a slider is slidably connected inside the sliding groove, a third spring is fixedly connected to the lower end of the slider, and an angle plate is fixedly connected to the outer side of the slider.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) The motor drives the first rectangular rod to rotate the reciprocating screw. The reciprocating screw meshes with the screw nut fixed on the support plate, driving the grinding balls and blades to rotate and reciprocate up and down, shearing and crushing the raw materials, and combining the grinding balls with the inner wall of the grinding chamber for extrusion and grinding. At the same time, the grinding balls drive the grinding plate to rotate and move up and down through the first spring and the rectangular block. When the grinding plate moves down, it performs secondary grinding on the incompletely crushed materials. When it moves up, the materials enter the area below the grinding plate through the inclined groove, realizing layered grinding. This structure enables the raw materials to complete multi-stage crushing in one feeding process, which significantly improves the fineness of crushing and crushing efficiency.

[0018] (2) The rotating rod drives the rotating ring and the internal protrusion with a second spring to rotate through the connecting rod. The protrusion periodically rubs against the vibrating block at the lower end of the crushing chamber, causing the filter plate to vibrate slightly, which promotes the rapid passage of qualified particle size through the filter plate and prevents the filter plate from clogging. The passed powder falls onto the corner plate with a third spring. The corner plate rotates with the rotating rod and floats up and down under the impact of the material, which disperses the falling material and makes it evenly sprinkled into the mixing tank. At the same time, the rotating rod drives the stirring rod to stir horizontally, and the second bevel gear meshes with the first fixed bevel gear to drive the rotating plate and the inclined rod to stir vertically, forming a three-dimensional mixing, which greatly improves the mixing uniformity of the raw materials of the desulfurization enhancer.

[0019] (3) This plan. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B;

[0024] Figure 5 This is a schematic diagram of the first partial structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the second partial structure of the present invention.

[0026] Explanation of the labels in the diagram:

[0027] 1. Mixing tank; 2. Grinding chamber; 3. Feed inlet; 4. Support plate; 5. Motor; 6. Grinding ball; 7. Blade; 8. Stirring rod; 9. Discharge valve; 10. First rectangular rod; 11. Reciprocating screw; 12. Screw nut; 13. First spring; 14. Rectangular block; 15. Grinding plate; 17. Inclined groove; 16. Filter plate; 18. Rotating ring; 19. Second spring; 20. Protrusion; 21. Connecting rod; 22. Rotating rod; 23. Second rectangular rod; 24. Third spring; 25. Sliding block; 26. Angle plate; 27. Slide groove; 28. Support rod; 29. ​​First bevel gear; 30. Second bevel gear; 31. Inclined rod; 32. Rotating plate; 33. Vibrating block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 6 A raw material crushing and mixing device for preparing desulfurization enhancer includes a mixing tank 1, a crushing chamber 2 fixedly connected to the upper end of the mixing tank 1, a discharge valve 9 provided at the lower end of the mixing tank 1, and a crushing component provided inside the crushing chamber 2.

[0030] The crushing assembly includes a feed inlet 3 fixedly connected to the upper end of the crushing chamber 2. Raw materials are poured into the device through the feed inlet 3. A support plate 4 is fixedly connected to the upper end of the feed inlet 3, and a motor 5 is fixedly connected to the upper end of the support plate 4. The motor 5 is a prior art drive device with a rotatable output end. A first rectangular rod 10 is fixedly connected to the output end of the motor 5, which can drive the first rectangular rod 10 to rotate. A reciprocating screw 11 is slidably connected to the outer side of the first rectangular rod 10. The reciprocating screw 11 can slide up and down relative to the first rectangular rod 10, and when the first rectangular rod 10 rotates, it can drive the reciprocating screw 11 to rotate. A screw nut 12 is fixedly connected inside the support plate 4 and remains stationary. The internal part of the grinding chamber 2 is meshed with the wall of the reciprocating screw 11. The reciprocating screw 11 rotates and moves up and down continuously under the action of the screw nut 12. The lower end of the reciprocating screw 11 is fixedly connected to the grinding ball 6. The outer side of the grinding ball 6 is uniformly fixedly connected to the blade 7. The rotation of the reciprocating screw 11 drives the grinding ball 6 to rotate. The lower end of the grinding chamber 2 is fixedly connected to the filter plate 16. The raw material after grinding is filtered through the filter plate 16. The lower end of the grinding ball 6 is slidably connected to the rectangular block 14. The rectangular block 14 can move up and down relative to the grinding ball 6. The upper end of the rectangular block 14 is fixedly connected to the first spring 13. The first spring 13 has a downward pressure on the rectangular block 14. The lower end of the rectangular block 14 is fixedly connected to the grinding plate 15. The lower inner wall of the grinding chamber 2 is provided with a sloping groove 17.

[0031] During operation, the raw materials to be crushed are poured into the device through the feed inlet 3. The motor 5 is started, and its output drives the first rectangular rod 10 to rotate. The first rectangular rod 10 drives the reciprocating screw 11 to rotate, which in turn causes the grinding balls 6 to rotate. The grinding balls 6 drive the blades 7 to rotate, contacting the inner wall of the crushing chamber 2, thus crushing the raw materials. Under the action of the screw nut 12, the reciprocating screw 11 moves up and down continuously. This movement of the reciprocating screw 11, in turn, drives the grinding balls 6 to move up and down. Because the grinding balls 6 are in close contact with the inside of the crushing chamber 2, the grinding balls 6... When the grinding balls 6 move up and down, they further crush the raw materials. At the same time, as the grinding balls 6 move up and down, they drive the rectangular blocks 14 to move up and down. When the grinding balls 6 move upward, they drive the grinding plates 15 to move upward. When the grinding plates 15 move upward, they drive the material into the interior of the inclined groove 17, so that the material at the upper end of the grinding plates 15 enters the lower end of the grinding plates 15 through the inclined groove. The crushed material can pass through the filter plate 16. For the material that is not completely crushed, the grinding balls 6 move downward, driving the grinding plates 15 to move downward. The grinding balls 6 cause the grinding plates 15 to rotate through the rectangular blocks 14, thereby further crushing the raw materials and improving the crushing effect.

[0032] like Figure 2 and Figure 3As shown, a rotating rod 22 is rotatably connected to the lower end of the filter plate 16, and a second rectangular rod 23 is fixedly connected to the lower end of the grinding plate 15. The rotation of the grinding plate 15 drives the second rectangular rod 23 to rotate, and the second rectangular rod 23 can move up and down relative to the rotating rod 22. The lower end of the second rectangular rod 23 is slidably connected to the upper end of the rotating rod 22. The rotation of the second rectangular rod 23 drives the rotating rod 22 to rotate. A stirring rod 8 is uniformly fixedly connected to the rod wall of the rotating rod 22. The rotation of the rotating rod 22 drives the stirring rod 8 to rotate, thereby mixing the materials.

[0033] like Figure 4 As shown, a support rod 28 is fixedly connected to the lower inner wall of the mixing tank 1. The support rod 28 remains stationary. A first bevel gear 29 is fixedly connected to the upper end of the support rod 28. A second bevel gear 30 is rotatably connected to the left side of the rotating rod 22. When the rotating rod 22 rotates, it drives the second bevel gear 30 to move. The first bevel gear 29 and the second bevel gear 30 are meshed together. A rotating plate 32 is fixedly connected to the left side of the second bevel gear 30. Inclined rods 31 are fixedly connected to the upper and lower left sides of the rotating plate 32.

[0034] When the rotating rod 22 rotates, it drives the second bevel gear 30 to move. The second bevel gear 30 rotates under the action of the first bevel gear 29. The rotation of the second bevel gear 30 drives the rotating plate 32 to rotate. The rotation of the rotating plate 32 drives the two inclined rods 31 to rotate. The inclined rods 31 move, which can stir the material in the vertical direction. Thus, the stirring rod 8 is horizontally stirred, and the inclined rods 31 are vertical, which can further improve the stirring effect.

[0035] like Figure 3 and Figure 6 As shown, a rotating ring 18 is rotatably connected to the lower end of the crushing chamber 2. The rotating ring 18 can rotate inside the crushing chamber 2. A protrusion 20 is slidably connected inside the rotating ring 18. The rotation of the rotating ring 18 drives the protrusion 20 to move. A second spring 19 is fixedly connected to one end of the protrusion 20. The second spring 19 provides a certain support force for the protrusion 20. Vibration blocks 33 are uniformly fixedly connected to the lower end of the crushing chamber 2. A connecting rod 21 is fixedly connected to the lower end of the rotating ring 18. The connecting rod 21 is fixedly connected to the rotating rod 22.

[0036] When the rotating rod 22 rotates, the connecting rod 21 causes the rotating ring 18 to rotate. The rotation of the rotating ring 18 drives the internal protrusion 20 to rotate. The second spring 19 exerts a certain pushing force on the protrusion 20, causing the protrusion 20 to rub against the vibrating block 33 when it moves, thereby generating vibration. This causes the filter plate 16 to vibrate during operation, which helps the material pass through the filter plate 16 and improves the filtration effect.

[0037] like Figure 3As shown, the outer side of the rotating rod 22 is evenly provided with a sliding groove 27, and a slider 25 is slidably connected inside the sliding groove 27. The slider 25 can move up and down inside the sliding groove 27. A third spring 24 is fixedly connected to the lower end of the slider 25. The third spring 24 provides an upward support force to the slider 25. An angle plate 26 is fixedly connected to the outer side of the slider 25.

[0038] Rotating rod 22 drives slider 25 to move, slider 25 drives angle plate 26 to move. When angle plate 26 moves, it can disperse the material. Through the third spring 24, when the material impacts angle plate 26, angle plate 26 will move up and down continuously. This can effectively disperse the material passing through filter plate 16, so that the material can be evenly scattered into the interior of mixing tank 1, improving the mixing effect.

[0039] Working Principle: During operation, the raw materials to be crushed are poured into the device through the feed inlet 3. The motor 5 is started, and its output drives the first rectangular rod 10 to rotate. The first rectangular rod 10 drives the reciprocating screw 11 to rotate, which in turn causes the grinding balls 6 to rotate. The grinding balls 6 drive the blades 7 to rotate, contacting the inner wall of the crushing chamber 2, thus crushing the raw materials. Under the action of the screw nut 12, the reciprocating screw 11 moves up and down continuously. This movement of the reciprocating screw 11, in turn, drives the grinding balls 6 to move up and down. Because the grinding balls 6 are in close contact with the inside of the crushing chamber 2, the grinding... As the grinding ball 6 moves up and down, it further crushes the raw material. At the same time, as the grinding ball 6 moves up and down, it drives the rectangular block 14 to move up and down. When the grinding ball 6 moves upward, it drives the grinding plate 15 to move upward. When the grinding plate 15 moves upward, it will enter the interior of the inclined groove 17, so that the material at the upper end of the grinding plate 15 enters the lower end of the grinding plate 15 through the inclined groove. The crushed material can pass through the filter plate 16. For the material that is not completely crushed, the grinding ball 6 moves downward, which drives the grinding plate 15 to move downward. The grinding ball 6 causes the grinding plate 15 to rotate through the rectangular block 14, thereby further crushing the raw material and improving the crushing effect.

[0040] Furthermore, when the rotating rod 22 rotates, it drives the second bevel gear 30 to move. The second bevel gear 30 rotates under the action of the first bevel gear 29. The rotation of the second bevel gear 30 drives the rotating plate 32 to rotate. The rotation of the rotating plate 32 drives the two inclined rods 31 to rotate. The inclined rods 31 move, which can stir the material in the vertical direction. Thus, the stirring rod 8 is horizontally stirred, and the inclined rods 31 are vertical, which can further improve the stirring effect.

[0041] Furthermore, when the rotating rod 22 rotates, the connecting rod 21 causes the rotating ring 18 to rotate. The rotation of the rotating ring 18 drives the internal protrusion 20 to rotate. The second spring 19 exerts a certain pushing force on the protrusion 20, causing the protrusion 20 to rub against the vibrating block 33 when it moves, thereby generating vibration during movement. This causes the filter plate 16 to vibrate during operation, which helps the material pass through the filter plate 16 and improves the filtration effect.

[0042] Rotating rod 22 drives slider 25 to move, slider 25 drives angle plate 26 to move. When angle plate 26 moves, it can disperse the material. Through the third spring 24, when the material impacts angle plate 26, angle plate 26 will move up and down continuously. This can effectively disperse the material passing through filter plate 16, so that the material can be evenly scattered into the interior of mixing tank 1, improving the mixing effect.

[0043] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A raw material crushing and mixing device for preparing desulfurization enhancer, comprising a mixing tank (1), wherein a crushing chamber (2) is fixedly connected to the upper end of the mixing tank (1), and a discharge valve (9) is provided at the lower end of the mixing tank (1). Its features are: The crushing chamber (2) is equipped with a crushing component inside; The crushing assembly includes a feed inlet (3) fixedly connected to the upper end of the crushing chamber (2), a support plate (4) fixedly connected to the upper end of the feed inlet (3), a motor (5) fixedly connected to the upper end of the support plate (4), a first rectangular rod (10) fixedly connected to the output end of the motor (5), a reciprocating screw (11) slidably connected to the outer side of the first rectangular rod (10), a screw nut (12) fixedly connected inside the support plate (4), the inside of the screw nut (12) meshing with the rod wall of the reciprocating screw (11), a grinding ball (6) fixedly connected to the lower end of the reciprocating screw (11), blades (7) uniformly fixedly connected to the outer side of the grinding ball (6), and a filter plate (16) fixedly connected to the lower end of the crushing chamber (2).

2. The raw material crushing and mixing equipment for preparing desulfurization enhancers according to claim 1, characterized in that: The lower end of the grinding ball (6) is slidably connected to a rectangular block (14), the upper end of the rectangular block (14) is fixedly connected to a first spring (13), the lower end of the rectangular block (14) is fixedly connected to a grinding plate (15), and the inner wall of the lower end of the crushing chamber (2) is provided with an inclined groove (17).

3. The raw material crushing and mixing equipment for preparing desulfurization enhancers according to claim 3, characterized in that: The lower end of the filter plate (16) is rotatably connected to a rotating rod (22), and the lower end of the grinding plate (15) is fixedly connected to a second rectangular rod (23). The lower end of the second rectangular rod (23) is slidably connected to the upper end of the rotating rod (22), and the rod wall of the rotating rod (22) is uniformly fixedly connected to a stirring rod (8).

4. The raw material crushing and mixing equipment for preparing desulfurization enhancers according to claim 3, characterized in that: A support rod (28) is fixedly connected to the lower inner wall of the mixing tank (1). A first bevel gear (29) is fixedly connected to the upper end of the support rod (28). A second bevel gear (30) is rotatably connected to the left side of the rotating rod (22). The first bevel gear (29) and the second bevel gear (30) are meshed together. A rotating plate (32) is fixedly connected to the left side of the second bevel gear (30). An inclined rod (31) is fixedly connected to the upper and lower left sides of the rotating plate (32).

5. The raw material crushing and mixing equipment for preparing desulfurization enhancers according to claim 3, characterized in that: The lower end of the crushing chamber (2) has a rotating ring (18) that rotates. The rotating ring (18) has a slidably connected protrusion (20). One end of the protrusion (20) is fixedly connected to a second spring (19). The lower end of the crushing chamber (2) is uniformly fixedly connected to a vibrating block (33). The lower end of the rotating ring (18) is fixedly connected to a connecting rod (21). The connecting rod (21) is fixedly connected to the rotating rod (22).

6. The raw material crushing and mixing equipment for preparing desulfurization enhancers according to claim 3, characterized in that: The outer side of the rotating rod (22) is evenly provided with a sliding groove (27), and a slider (25) is slidably connected inside the sliding groove (27). A third spring (24) is fixedly connected to the lower end of the slider (25), and an angle plate (26) is fixedly connected to the outer side of the slider (25).

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