Powder homogenizing device

Abstract

The utility model relates to a powder homogenizing device, including powder screening mechanism, powder injection mechanism and reaction tower body, powder screening mechanism is connected with one end of powder injection mechanism, the other end of powder injection mechanism is communicated with reaction tower body, powder screening mechanism is used for mixing and homogenizing powder, and the reaction tower body is communicated with the powder injection mechanism. The powder spraying mechanism comprises a powder bin and a pneumatic conveying assembly, and the pneumatic conveying assembly is arranged on the powder bin; according to the powder homogenizing device provided by the utility model, powder is uniformly mixed, so that the powder is ensured to be in full contact with flue gas, the desulfurization and deacidification effects of the flue gas are improved, the pollution is reduced, and the emission standard is reached.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a device for mixing and homogenizing powder bodies at the front end of a reaction. Background Art

[0002] As we all know, most of the industrial waste gas generated in the industrial production process comes from related industries such as steel, new energy, and building materials. The waste gas generated contains some SO2 gas or SO3 gas, and may also be mixed with some acidic gases such as HCl, HF, etc., so in the current field of environmental protection technology, this type of waste gas needs to meet the emission standards when it is discharged, and it is necessary to carry out desulfurization and deacidification steps at the same time. If dry reaction treatment is used, it is necessary to mix a variety of powders for impurity removal. The more uniform the powder mixing, the more sufficient the contact between the powder and the flue gas, and the better the desulfurization and deacidification effect of the flue gas. So in the incoming material process In the process, powdery materials may have different mesh sizes. If the mesh sizes of the powders are different and the properties of each powder are different, they will be mixed rashly and the residence time in the reaction tower will be different. Then the settling speed of the powders in the reaction tower will be different, which is not conducive to subsequent reactions. Therefore, an automatic homogenizing device for powders can be designed. Before the reaction, materials of different mesh sizes are first sieved to make the mesh sizes of different materials uniform and homogenized, mixed evenly, and then enter the silo. The powder is pneumatically conveyed into the dry reaction tower for sufficient reaction, so that the powder is fully in contact with the flue gas, thereby improving the desulfurization and deacidification effects of the flue gas, reducing pollution, and meeting emission standards. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a powder homogenizing device which can ensure sufficient contact between powder and flue gas and has significant effects on desulfurization and deacidification of flue gas.

[0004] In order to achieve the purpose of the utility model, the utility model provides a powder homogenization device, including a powder screening mechanism, a powder injection mechanism and a reaction tower body, the powder screening mechanism is connected to one end of the powder injection mechanism, and the other end of the powder injection mechanism is connected to the reaction tower body, the powder screening mechanism is used to mix and homogenize the powder, the powder injection mechanism includes a powder bin and a pneumatic conveying component, the pneumatic conveying component is arranged on the powder bin, the powder screening mechanism is connected to the powder bin through a powder conveying member, the powder bin is connected to the reaction tower body through a conveying pipe, and the pneumatic conveying component is used to keep the powder body in the powder bin in a continuous conveying state and transport it to the reaction tower body for desulfurization and deacidification reaction.

[0005] Preferably, the powder silo is a powder containing bucket body, the bottom of which is connected to a pneumatic conveying assembly, the pneumatic conveying assembly includes a venturi ejector, one end of which is in communication with the bottom of the powder containing bucket body.

[0006] Preferably, the powder screening mechanism includes a ball grinder, which includes a grinding sleeve assembly, a cylinder support, a rotating connection assembly and a driving assembly, the cylinder support includes a first cylinder support frame and a second cylinder support frame, the grinding sleeve assembly includes a grinding cylinder body, the rotating connection assembly includes a first rotating connection member and a second rotating connection member, one end of the grinding cylinder body is rotatably connected to the first cylinder support frame via a first rotating connection member, and the other end is rotatably connected to the second cylinder support frame via a second rotating connection member.

[0007] Preferably, the other end of the grinding cylinder body is rotatably connected to the second cylinder support frame through a second rotating connecting piece, and the end of the grinding cylinder body is connected to a discharge hopper, and the bottom of the discharge hopper is connected to a discharge pipe, and a material conveyor belt is provided at the pipe mouth of the discharge pipe, and the material conveyor belt is used to transport the material output by the discharge pipe to the powder bin, and the driving assembly is used to drive the grinding cylinder body to rotate at a uniform speed, and one end of the grinding cylinder body is rotatably connected to the first cylinder support frame through a first rotating connecting piece, and the front end of the grinding cylinder body is connected to a coupling.

[0008] Preferably, the grinding sleeve assembly also includes a transverse fixing member and a vertical fixing member, the vertical fixing member is a straight rod connecting member, a plurality of straight rod connecting members are provided, each straight rod connecting member is connected at intervals in the length direction of the grinding cylinder body, and the transverse fixing member is an annular hoop, more than six annular hoop are provided, each annular hoop is connected to each straight rod connecting member at intervals in the radial direction of the grinding cylinder body, forming a cylindrical fixing cage wrapped around the grinding cylinder body.

[0009] Preferably, the driving assembly includes a reducer and a driving motor, the front end of the coupling is electrically connected to the reducer, and the reducer is electrically connected to the driving motor.

[0010] Preferably, a reaction chamber is formed in the reaction tower body, the bottom of the reaction chamber is connected to the powder bin through the conveying pipe, and a powder flow equalizing component is provided near the bottom of the reaction chamber, the powder flow equalizing component includes a powder coil and a powder flow equalizing plate, and the powder flow equalizing plate is arranged above the powder coil.

[0011] Preferably, the powder coil is provided with a longitudinal powder circulation tube group and a transverse powder circulation tube group, the longitudinal powder circulation tube group and the transverse powder circulation tube group are connected in a cross shape, the longitudinal powder circulation tube group includes a plurality of longitudinal powder circulation tubes, the transverse powder circulation tube group includes a plurality of transverse circulation tubes, each longitudinal powder circulation tube is cross-connected with each transverse powder circulation tube at intervals, and the formed cross connections are interconnected, and a plurality of cross connections are formed.

[0012] Preferably, each of the cross-connections is connected to an injection nozzle, and a plurality of the injection nozzles are provided. One end of the venturi injector is connected to an injection connecting pipe, and the injection connecting pipe is connected to the longitudinal powder flow pipe group.

[0013] Preferably, the coil is further provided with a first connecting ring and a second connecting ring, and the first connecting ring and the second connecting ring are used to connect the longitudinal powder circulation tube group and the transverse powder circulation tube group. The powder flow equalizing plate is provided with a plurality of flow equalizing holes, and each of the flow equalizing holes is arranged at intervals.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a powder homogenizing device, which is provided with a material screening mechanism and a powder injection mechanism. The powder screening mechanism is used to mix and homogenize the powder. The mixed and homogenized powder enters the material bin in the powder injection mechanism. The pneumatic conveying component will keep the powder body in the powder bin in a continuous conveying state, and convey it to the reaction tower body for desulfurization and deacidification reaction. The device first mixes the powder evenly to ensure full contact between the powder and the flue gas, thereby improving the desulfurization and deacidification effects of the flue gas and reducing pollution at the same time to meet emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0016] Figure 1 This is a schematic diagram of an embodiment of the powder homogenizing device of the utility model;

[0017] Figure 2 It is a schematic diagram of a ball mill in the powder homogenizing device of the utility model;

[0018] Figure 3 It is a schematic diagram of the disassembled ball mill in the powder homogenizing device of the utility model;

[0019] Figure 4 It is a plan view of the powder material coil in the powder material homogenizing device of the utility model;

[0020] Figure 5 It is a plan view of the powder flow equalizing plate in the powder homogenizing device of the utility model.

[0021] In the figure: 1. reaction tower body; 2. powder silo; 3. pneumatic conveying assembly; 31. venturi ejector; 32. injection connecting pipe; 4. ball grinder; 41. first cylinder support frame; 42. second cylinder support frame; 43. grinding cylinder body; 430. sieve mesh; 44. first rotating connection piece; 45. second rotating connection piece; 46. material conveyor belt; 5. flange; 6. coupling; 7. horizontal fixing piece; 8. vertical fixing piece; 9. T-type pad; 10. reducer; 11. driving motor; 12. powder coil; 121. longitudinal powder circulation pipe group; 122. transverse powder circulation pipe group; 123. first connecting ring; 124. second connecting ring; 13. powder flow plate; 14. injection nozzle. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0023] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] like Figure 1-5As shown, the embodiment of the utility model provides a powder homogenizing device, including a powder screening mechanism, a powder injection mechanism and a reaction tower body 1, the powder screening mechanism is connected to one end of the powder injection mechanism, and the other end of the powder injection mechanism is connected to the reaction tower body 1, the powder screening mechanism is used to mix and homogenize the powder, the powder injection mechanism includes a powder bin 2 and a pneumatic conveying component 3, the pneumatic conveying component 3 is arranged on the powder bin 2, the powder screening mechanism is connected to the powder bin 2 through a powder conveying member, and the powder bin 2 is connected to the reaction tower body through a conveying pipe. The pneumatic conveying component 3 is connected to the powder bin 2 to maintain a continuous conveying state, and convey it to the reaction tower body 1 for desulfurization and deacidification reaction. After the powders of different mesh sizes and properties are processed by the powder screening mechanism, several powders can be fully mixed, the particle size of the mixed powdery materials is unified, and the powder is homogenized. After continuous conveying by the pneumatic conveying component 3, the powder can fill the entire silo, and the powder is fully in contact with the flue gas, thereby improving the desulfurization and deacidification effects of the flue gas, while reducing pollution and meeting emission standards.

[0026] refer to Figure 1-5 As shown, in a further preferred embodiment, the powder silo 2 is a powder containing bucket body, and the powder containing bucket body is used to store the powder that is evenly mixed and transported from the powder screening mechanism. The bottom of the powder containing bucket body is connected to the pneumatic conveying component 3, and the pneumatic conveying component 3 includes a venturi ejector 31. One end of the venturi ejector 31 is connected to the bottom of the powder containing bucket body, and the powder in the powder containing bucket body is transported from the bottom of the bucket body.

[0027] refer to Figure 1-5 As shown, in a preferred embodiment, the powder screening mechanism includes a ball grinder 4, which includes a grinding sleeve assembly, a cylinder support, a rotating connection assembly and a driving assembly. The cylinder support includes a first cylinder support frame 41 and a second cylinder support frame 42. The grinding sleeve assembly includes a grinding cylinder body 43. The rotating connection assembly includes a first rotating connection member 44 and a second rotating connection member 45. One end of the grinding cylinder body 43 is rotatably connected to the first cylinder support frame 41 through the first rotating connection member 44, and the other end is rotatably connected to the second cylinder support frame 42 through the second rotating connection member 45. Both ends of the grinding cylinder body 43 are connected to the two cylinder support frames through rotating connections, and the outside of the grinding cylinder body is connected to the grinding cylinder outer shell.

[0028] refer to Figure 1-5As shown, in a preferred embodiment, the other end of the grinding cylinder body is rotatably connected to the second cylinder support frame 42 through a second rotating connection 45, and the end of the grinding cylinder body 43 is connected to a discharge hopper, and a plurality of sieve holes 430 evenly spaced are provided on the grinding cylinder body 43, and a discharge port is also provided at the lower part of one end of the grinding cylinder body 43, and flanges 5 are provided at both ends of the grinding cylinder body 43, and connection holes 51 are evenly opened on the flange 5, and a discharge pipe is connected to the bottom of the discharge hopper, and a material conveying belt 46 is provided at the pipe mouth of the discharge pipe, and the material conveying belt 46 is used to convey the material output by the discharge pipe to the powder bin 2, and the powder conveying member can be a material conveying belt, and the pipe mouth of the discharge pipe can also be connected to the powder conveying pipe, and the driving assembly is used to drive the grinding cylinder body to rotate at a uniform speed, or at a medium and high speed, and one end of the grinding cylinder body 43 is rotatably connected to the first cylinder support frame 41 through a first rotating connection 44, and a coupling 6 is connected to the front end of the grinding cylinder body, and the coupling 6 is provided to ensure the stability of the grinding cylinder body during rotation.

[0029] refer to Figure 1-5 As shown, in a preferred embodiment, the grinding sleeve assembly also includes a transverse fixing member 7 and a vertical fixing member 8. The vertical fixing member 8 is a straight rod connecting member. There are multiple straight rod connecting members, each of which is connected at intervals in the length direction of the grinding cylinder body. The upper end portion of each straight rod connecting member is surface-contacted and connected to the grinding cylinder body through a T-shaped pad 9. One surface of the T-shaped pad 9 is provided with a first annular groove that fits the cylinder surface, and the other surface is provided with a second annular groove that cooperates to connect the straight rod connecting member. Each connecting hole on the two flanges 5 is used to correspondingly connect the upper and lower ends of each straight rod connecting member. The transverse fixing member 7 is an annular hoop. There are more than six annular hoop. Each annular hoop is connected to each straight rod connecting member at intervals in the radial direction of the grinding cylinder body to form a cylindrical fixing cage wrapped around the grinding cylinder body. The structure of the annular hoop and the straight rod connecting member is used to enhance the stability of the grinding sleeve structure, and the structure is more stable when rotating.

[0030] refer to Figure 1-5 As shown, in a preferred embodiment, the driving assembly includes a reducer 10 and a driving motor 11. One end of the coupling 6, that is, the rear end of the coupling 6, is rotatably connected to the grinding cylinder body through a connecting shaft. The front end of the coupling 6, that is, the other end of the coupling 6, is mechanically connected to the reducer 10. The reducer 10 is electrically connected to the driving motor 11. The reducer is provided to maintain the uniform rotation of the grinding cylinder body.

[0031] refer to Figure 1-5As shown, in a further preferred embodiment, a reaction chamber is formed in the reaction tower body 1, the bottom of the reaction chamber is connected with the powder bin through a conveying pipe, and a powder flow equalizing component is provided near the bottom of the reaction chamber. The powder flow equalizing component includes a powder coil 12 and a powder flow equalizing plate 13. The powder flow equalizing plate 13 is arranged above the powder coil 12. The powder flow equalizing component can make the distribution and flow rate of the powder body in the tower uniform, thereby ensuring the full progress of the reaction.

[0032] refer to Figure 1-5 As shown, in a further preferred embodiment, a longitudinal powder circulation tube group 121 and a transverse powder circulation tube group 122 are provided on the powder coil 12, and the longitudinal powder circulation tube group 121 and the transverse powder circulation tube group 122 are connected in a cross shape, the longitudinal powder circulation tube group 121 includes a plurality of longitudinal powder circulation tubes, and the transverse powder circulation tube group 122 includes a plurality of transverse circulation tubes, each longitudinal powder circulation tube is cross-connected with each transverse powder circulation tube at intervals, and the cross connections formed are connected, and a plurality of cross connections are formed, which are evenly spaced.

[0033] refer to Figure 2-5 As shown, in a further preferred embodiment, each cross connection is connected to an injection nozzle 14, and a plurality of injection nozzles 14 are provided. One end of the venturi injector 31 is connected to an injection connecting pipe 32, and the injection connecting pipe 32 is connected to the longitudinal powder circulation pipe group 121. The powder airflow injected from the venturi injector 31 is transported to the middle transverse circulation pipe through the injection connecting pipe. Because each longitudinal powder circulation pipe and each transverse powder circulation pipe are mutually circulated, the powder gas flow injected by the venturi can be continuously injected, and then the powder body fills the reaction cavity in the entire reaction tower body through the powder coil 12. The powder body is ejected from the injection nozzle 14, so that the powder is fully in contact with the flue gas, thereby improving the desulfurization and deacidification effects of the flue gas, while reducing pollution and meeting the emission standards.

[0034] refer to Figure 2-5 As shown, in a further preferred embodiment, the coil 12 is further provided with a first connecting ring 123 and a second connecting ring 124, and the first connecting ring 123 and the second connecting ring 124 are used to connect the longitudinal powder circulation tube group and the transverse powder circulation tube group, and the first connecting ring 123 and the second connecting ring 124 play a role of fixed connection to ensure the stability of the structure of the powder coil, and the powder equalizing plate 13 is provided with a plurality of equalizing holes 131, and each equalizing hole 131 is arranged at intervals. The equalizing holes 131 can fill the reaction chamber with fine mixed dust with uniform flow rate to ensure the uniformity of the powder.

[0035] The beneficial effects of the utility model are as follows: the utility model provides a powder homogenizing device, which is provided with a material screening mechanism and a powder injection mechanism. The powder screening mechanism is used to mix and homogenize the powder. The mixed and homogenized powder enters the material bin in the powder injection mechanism. The pneumatic conveying component will keep the powder body in the powder bin in a continuous conveying state, and transport it to the reaction tower body for desulfurization and deacidification reaction. The device first mixes the powder evenly to ensure full contact between the powder and the flue gas, thereby improving the desulfurization and deacidification effects of the flue gas and reducing pollution at the same time to meet emission standards.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A powder homogenizing device, characterized in that: It includes a powder screening mechanism, a powder injection mechanism and a reaction tower body, the powder screening mechanism is connected to one end of the powder injection mechanism, and the other end of the powder injection mechanism is connected to the reaction tower body, the powder screening mechanism is used to mix and homogenize the powder, the powder injection mechanism includes a powder bin and a pneumatic conveying component, the pneumatic conveying component is arranged on the powder bin, the powder screening mechanism is connected to the powder bin through a powder conveying member, the powder bin is connected to the reaction tower body through a conveying pipe, and the pneumatic conveying component is used to keep the powder in the powder bin in a continuous conveying state and convey it to the reaction tower body for desulfurization and deacidification reaction.

2. The powder homogenizing device according to claim 1, characterized in that: The powder bin is a powder containing bucket body, the bottom of which is connected to a pneumatic conveying assembly, which includes a venturi ejector, one end of which is connected to the bottom of the powder containing bucket body.

3. The powder homogenizing device according to claim 1, characterized in that: The powder screening mechanism includes a ball grinder, which includes a grinding sleeve assembly, a cylinder support, a rotating connection assembly and a driving assembly. The cylinder support includes a first cylinder support frame and a second cylinder support frame. The grinding sleeve assembly includes a grinding cylinder body. The rotating connection assembly includes a first rotating connection member and a second rotating connection member. One end of the grinding cylinder body is rotatably connected to the first cylinder support frame via a first rotating connection member, and the other end is rotatably connected to the second cylinder support frame via a second rotating connection member.

4. The powder homogenizing device according to claim 3, characterized in that: The other end of the grinding cylinder body is rotatably connected to the second cylinder support frame through a second rotating connection piece, and the end of the grinding cylinder body is connected to a discharge hopper, and the bottom of the discharge hopper is connected to a discharge pipe, and a material conveyor belt is provided at the pipe mouth of the discharge pipe, and the material conveyor belt is used to transport the material output by the discharge pipe to the powder bin. The driving assembly is used to drive the grinding cylinder body to rotate at a uniform speed, and one end of the grinding cylinder body is rotatably connected to the first cylinder support frame through a first rotating connection piece, and a coupling is connected to the front end of the grinding cylinder body.

5. The powder homogenizing device according to claim 3, characterized in that: The grinding sleeve assembly also includes a transverse fixing member and a vertical fixing member. The vertical fixing member is a straight rod connecting member. There are multiple straight rod connecting members, each of which is connected at intervals in the length direction of the grinding cylinder body. The transverse fixing member is an annular hoop. There are more than six annular hoop, each of which is connected to each straight rod connecting member at intervals in the radial direction of the grinding cylinder body to form a cylindrical fixing cage wrapped around the grinding cylinder body.

6. The powder homogenizing device according to claim 4, characterized in that: The driving assembly includes a reducer and a driving motor. The front end of the coupling is electrically connected to the reducer, and the reducer is electrically connected to the driving motor.

7. The powder homogenizing device according to claim 1, characterized in that: A reaction chamber is formed in the reaction tower body, and the bottom of the reaction chamber is connected to the powder bin through the conveying pipe. A powder flow equalizing component is provided near the bottom of the reaction chamber, and the powder flow equalizing component includes a powder coil and a powder flow equalizing plate, and the powder flow equalizing plate is arranged above the powder coil.

8. The powder homogenizing device according to claim 7, characterized in that: The powder coil is provided with a longitudinal powder circulation tube group and a transverse powder circulation tube group, the longitudinal powder circulation tube group and the transverse powder circulation tube group are connected in a cross shape, the longitudinal powder circulation tube group includes a plurality of longitudinal powder circulation tubes, the transverse powder circulation tube group includes a plurality of transverse circulation tubes, each longitudinal powder circulation tube is cross-connected with each transverse powder circulation tube at intervals, and the formed cross connections are connected, and a plurality of cross connections are formed.

9. The powder homogenizing device according to claim 8, characterized in that: Each of the cross-connections is connected with an injection nozzle, and a plurality of the injection nozzles are provided. One end of the venturi injector is connected with an injection connecting pipe, and the injection connecting pipe is connected with the longitudinal powder flow pipe group.

10. The powder homogenizing device according to claim 8, characterized in that: The coil is also provided with a first connecting ring and a second connecting ring, which are used to connect the longitudinal powder circulation tube group and the transverse powder circulation tube group. The powder flow equalizing plate is provided with a plurality of flow equalizing holes, and each of the flow equalizing holes is arranged at intervals.

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