A calcium oxide powder production system

Abstract

The present invention provides a calcium oxide powder making system, which includes a raw material bin. The discharge end of the raw material bin is connected with a pretreatment mechanism, and the discharge end of the pretreatment mechanism is connected with a digestion mechanism. The pretreatment mechanism includes a first feeder connected to the discharge end of the raw material bin, a crushing assembly connected to the discharge end of the first feeder, and an elevator connected to the discharge end of the crushing assembly. The discharge end of the elevator is connected with a grinding assembly. The crushing assembly includes a crushing box connected to the discharge end of the first feeder, a vibration filtering component, a powder filtering component and a crushing component arranged inside the crushing box. The grinding assembly includes a feeding component connected to the discharge end of the crushing box and a second feeder, and a classifier connected to the discharge end of the second feeder. The present invention can perform classification treatment on calcium oxide powder blocks so as to obtain powder blocks with similar sizes, which is convenient for calcium oxide powder making.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of lime production, and particularly relates to a calcium oxide powder making system. Background Art

[0002] In the existing industrial production of calcium hydroxide, calcium hydroxide is produced through steps such as crushing the calcined quicklime, digestion, drying, re-crushing, screening and filtering.

[0003] According to a system for producing calcium hydroxide by full negative pressure digestion of calcium oxide provided by the patent document with the application number CN201811609519.4, this calcium oxide powder making system is composed of a pre-curing component and a separation and material receiving component used in cooperation with the pre-curing component. The beneficial effects of a system for producing calcium hydroxide by negative pressure digestion of calcium oxide of the present invention are as follows: 1. The whole process adopts full negative pressure operation to ensure a clean operation environment, and the dust emission meets the national emission standards; 2. After classification by the separator, the fineness of the finished product can be adjusted arbitrarily from 200 mesh to 800 mesh.

[0004] According to a quicklime powder making and digestion system provided by the patent document with the application number CN202221974680.3, this quicklime powder making system includes a crushing structure capable of crushing calcium oxide lumps into calcium oxide particles. The output end of the crushing structure is connected through a hoist to a grinding structure of cyclic sorting and sealed grinding capable of grinding calcium oxide particles into calcium oxide powder, and the output end of the grinding structure is connected to a digestion structure for digesting calcium oxide powder. Asbestos rope or knitted felt is used for sealing at the flange joints of each pipeline in the grinding structure. A flexible connection is adopted at the feed inlet of the grinding machine of this utility model, and asbestos rope or knitted felt is added at each flange joint to ensure the sealing effect. The dust discharge port of the dust collector is connected to the conveying equipment by flange connection, which can also ensure the sealing effect. A pulse dust collector is used to collect the residual air, with high efficiency, which can reduce dust pollution. The gas after dust removal is directly discharged, meeting the environmental protection standards and having no pollution to the surrounding environment.

[0005] Traditional calcium oxide powder making systems often uniformly process powder lumps of different sizes through a crushing device. This method results in insufficient treatment of larger calcium oxide powder lumps, while smaller powder lumps become even smaller after multiple treatments, resulting in uneven sizes of the obtained powder lumps. During the process of uniformly feeding the powder lumps of uneven sizes into the grinding mechanism for grinding, although the grinding mechanism has a classification function, it takes a long time to process small calcium oxide powders in order to convert the powder lumps of uneven sizes into powders with similar particle sizes, thus affecting the powder making efficiency. Summary of the Invention

[0006] The present invention mainly provides a calcium oxide powder making system to solve the technical problems raised in the above background art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0008] A calcium oxide powder making system includes a raw material bin, the discharge end of the raw material bin is connected with a pretreatment mechanism, and the discharge end of the pretreatment mechanism is connected with a digestion mechanism;

[0009] The pretreatment mechanism includes a first feeder connected to the discharge end of the raw material bin, a crushing assembly connected to the discharge end of the first feeder, and a hoist connected to the discharge end of the crushing assembly. The discharge end of the hoist is connected with a grinding assembly;

[0010] The crushing assembly includes a crushing box connected to the discharge end of the first feeder, a vibration filtering component, a powder filtering component and a crushing component arranged inside the crushing box. The vibration filtering component, the powder filtering component and the crushing component are arranged inside the crushing box from top to bottom in sequence;

[0011] The grinding assembly includes a feeding component and a second feeder connected to the discharge end of the crushing box, a classifier connected to the discharge end of the second feeder, and a grinding chamber installed at the bottom end of the classifier and connected to the feeding component.

[0012] Further, the vibration filtering component includes a plurality of elastic supports installed inside the crushing box and arranged from top to bottom in sequence, a filter plate connected to the elastic supports, and a filter box installed on one side surface of the filter plate. A pushing auger is rotatably connected to the inside of the filter box through a bearing. In the present invention, the elastic supports provide support for the filter plate. When the calcium oxide powder blocks roll on the filter plate, the powder on the calcium oxide powder blocks is screened through the inclined filter plate. Since there are multiple filter plates and the mesh holes of the multiple filter plates from the feed end to the discharge end of the crushing box become smaller and smaller, the powder attached to the powder blocks is classified.

[0013] Further, the elastic support includes a first fixing block installed at multiple vertex angles of the filter plate, a glass fiber elastic sheet installed on the outer surface of the first fixing block, and a second fixing block installed at one end of the glass fiber elastic sheet away from the first fixing block. The second fixing block is installed on the inner surface of the crushing box. In the present invention, through the first fixing block and the second fixing block, the glass fiber elastic sheet can be fixed between the filter plate and the inner wall of the crushing box. In this way, the glass fiber elastic sheet can provide support for the filter plate, so that when the filter plate at the first end shakes with the help of a vibration motor, it can shake along with the filter plate through the glass fiber elastic sheet, so that the crushing box adapts to the shaking of the filter plate and reduces the influence on the crushing box caused by the shaking of the filter plate.

[0014] Further, the powder filtering component includes a grinding plate installed inside the crushing box and at the bottom end of the filter plate, and a plurality of grinding rollers installed on the upper surface of the grinding plate and arranged in a linear array. In the present invention, after the calcium oxide powder block falls onto the surface of the grinding plate through the grading treatment of the filter plate, the powder continuously slides down through the inclined grinding plate. During this process, the powder passing through the gap between the roller body and the grinding plate is rolled by the grinding rollers to shape and refine the powder, facilitating further grinding of the subsequent powder.

[0015] Further, the crushing component includes a power device installed outside the crushing box and arranged successively from top to bottom, and two crushing rollers connected to the power device. The crushing rollers are rotatably connected to the crushing box through bearings. A guide plate installed inside the crushing box is provided at the bottom end of the crushing rollers. In the present invention, the powder block falling between the two roller bodies is crushed by the reverse rotation of the two crushing rollers. Through the guidance of the guide plate, the powder block that has undergone the previous stage of crushing enters between the two crushing rollers at the next stage for further crushing. In this way, the powder with a larger volume is processed multiple times to keep the volume of the discharged powder block consistent.

[0016] Further, the power device includes a gear coaxially arranged with the crushing roller and a motor connected to the crushing roller. The two gears are meshed with each other. The motor is installed on the outer surface of the crushing box. In the present invention, the output shaft of the motor drives the crushing roller to rotate. Since gears are sleeved on both the crushing roller and the adjacent crushing roller, and the two gears are meshed with each other, the two crushing rollers are driven to rotate in opposite directions.

[0017] Further, a screw conveyor is connected to the outer surface of the crushing box. A plurality of expansion joint bellows are arranged in a linear array at the top end of the screw conveyor. One end of the expansion joint bellows away from the screw conveyor is connected to a discharge pipe. One end of the discharge pipe away from the expansion joint bellows is connected to the filter box;

[0018] A plurality of feeding pipes are connected to the bottom end of the screw conveyor in a linear array. One end of the feeding pipe away from the screw conveyor is located at the top end of the adjacent crushing roller. In the present invention, during the process of the powder block entering the screw conveyor, since the discharge pipe and the screw conveyor are connected through the expansion joint bellows, the telescopic shaking of the expansion joint bellows reduces the discharge pipe following its connection.

[0019] Further, the feeding component includes a first bin connected to the discharge end of the elevator, and a third feeder connected to the discharge end of the first bin. The discharge end of the third feeder is connected to the feeding end of the grinding chamber. In the present invention, the powder blocks discharged from the crushing box are lifted to a high position by the elevator for storage in the first bin, and the powder blocks inside the first bin are quantitatively discharged by the third feeder.

[0020] Further, a discharge plate is connected to the bottom end of the crushing box. Connecting rods are connected to multiple top corners of the upper surface of the discharge plate, and the upper surface of the connecting rods is connected to the lower surface of the filter plate. In the present invention, through the arrangement of the connecting rods, the discharge plate follows the filter plate to vibrate, so as to guide the powder blocks falling thereon to be discharged through the vibrating discharge plate.

[0021] Further, the digestion mechanism includes a third bin connected to the discharge end of the grinding chamber, a fourth feeder connected to the discharge end of the third bin, and a digester connected to the discharge end of the fourth feeder. In the present invention, the powder obtained after grinding in the grinding chamber is stored in the third bin, and the fourth feeder guides the powder to be discharged from the third bin and enter the interior of the digester, so as to prepare hydrated lime powder through the digester.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] Firstly, the present invention can classify calcium oxide powder blocks to obtain powder blocks with similar sizes, which is convenient for subsequent calcium oxide powder production. Specifically, the powder blocks that cannot pass through the mesh holes of the box body in the filter box enter the internal spiral conveyor through the discharge pipe and are lifted by the spiral conveyor, so that the powder blocks are lifted to a high position and discharged through the discharge pipe near this place. At this time, the powder blocks are just discharged between the two crushing rolls at the bottom end of the filter plate connected to the filter box, and the powder blocks are crushed by the crushing rolls. After the powder blocks are crushed, through the guiding of the guiding plate, the powder blocks that have been crushed at the previous stage enter between the two crushing rolls at the next stage for further crushing. In this way, the powder with a larger volume is processed multiple times to keep the volume of the discharged powder blocks consistent.

[0024] Second, the present invention adds raw materials of different particle sizes to different positions of the grinding assembly to facilitate the rapid processing of the raw materials by the grinding assembly. Specifically: when the internal components of the crushing box complete the processing of calcium oxide powder blocks and the powder generated during the powder screening process, the powder blocks of similar size are lifted by a hoist into the second feeder, and quantitatively discharged through the second feeder into the grinding chamber connected thereto for grinding. The powder processed by the crushing box is received by the first bin, and the powder is transported by the third feeder into the classifier connected thereto. Since the powder meets the judgment of the classifier for the particle size requirements of powder production, the powder can be quickly exported for use.

[0025] Third, during the process of screening the powder blocks, the powder that falls onto the grinding plate surface through the filter plate continuously slides down along the inclined plate body. During this process, the powder passing through the gap between the roller body and the grinding plate is rolled by the grinding roller to shape and refine the powder, facilitating the further grinding of the powder.

[0026] The present invention will be explained and described in detail below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is a schematic structural diagram of the crushing assembly of the present invention;

[0029] Figure 3 is Figure 2 an enlarged view of the structure of area A in

[0030] Figure 4 is a schematic structural diagram of the vibration filtering component of the present invention;

[0031] Figure 5 is an axonometric view of the crushing assembly of the present invention;

[0032] Figure 6 is a schematic structural diagram of the power device of the present invention.

[0033] In the figure: 10, raw material bin; 20, pretreatment mechanism; 21, first feeder; 22, crushing assembly; 221, crushing box; 2211, inclined auger; 2212, expansion joint bellows; 2213, discharge pipe; 2214, conveying pipe; 2215, discharge plate; 2216, conveying pipe; 222, filtering component; 2221, elastic support; 2222, filter plate; 2223, filter box; 2224, pushing auger; 222a, first fixing block; 222b, fiberglass elastic sheet; 222c, second fixing block; 223, powder filtering component; 2231, grinding plate; 2232, grinding roller; 224, crushing component; 2241, power device; 2242, crushing roller; 2243, guide plate; 224a, gear; 224b, motor; 23, elevator; 24, grinding assembly; 241, feeding component; 2411, third feeder; 2412, first bin; 242, second feeder; 243, classifier; 244, grinding chamber; 30, digestion mechanism; 31, third bin; 32, fourth feeder; 33, digester. Detailed implementation mode

[0034] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0036] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this article are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0037] For the embodiments, please refer to the attached Figures 1-6 , a calcium oxide powder making system, including a raw material bin 10, the discharge end of the raw material bin 10 is connected to a pretreatment mechanism 20, and the discharge end of the pretreatment mechanism 20 is connected to a digestion mechanism 30;

[0038] The preprocessing mechanism 20 includes a first feeder 21 connected to the discharge end of the raw material bin 10, a crushing assembly 22 connected to the discharge end of the first feeder 21, and a hoist 23 connected to the discharge end of the crushing assembly 22. The discharge end of the hoist 23 is connected to a grinding assembly 24;

[0039] The crushing assembly 22 includes a crushing box 221 connected to the discharge end of the first feeder 21, a vibration filtering component 222, a powder filtering component 223, and a crushing component 224 disposed inside the crushing box 221. The vibration filtering component 222, the powder filtering component 223, and the crushing component 224 are sequentially disposed inside the crushing box 221 from top to bottom;

[0040] The grinding assembly 24 includes a feeding component 241 and a second feeder 242 connected to the discharge end of the crushing box 221, a classifier 243 connected to the discharge end of the second feeder 242, and a grinding chamber 244 installed at the bottom end of the classifier 243 and connected to the feeding component 241.

[0041] Specifically, please refer to the attached Figure 2 and 4 In particular, the vibration filtering component 222 includes a plurality of elastic supports 2221 installed inside the crushing box 221 and arranged in sequence from top to bottom, a filter plate 2222 connected to the elastic supports 2221, and a filter box 2223 installed on one side surface of the filter plate 2222. A feeding auger 2224 is rotatably connected to the inside of the filter box 2223 through a bearing;

[0042] The elastic support 2221 includes a first fixing block 222a installed at multiple vertex angles of the filter plate 2222, a glass fiber elastic sheet 222b installed on the outer surface of the first fixing block 222a, and a second fixing block 222c installed at one end of the glass fiber elastic sheet 222b away from the first fixing block 222a. The second fixing block 222c is installed on the inner surface of the crushing box 221;

[0043] It should be noted that in this embodiment, the elastic support 2221 provides support for the filter plate 2222. When the calcium oxide powder blocks roll on the filter plate 2222, the powder on the calcium oxide powder blocks is screened through the inclined filter plate 2222. Since there are multiple filter plates 2222 and the mesh holes of the multiple filter plates 2222 from the feed end to the discharge end of the crushing box 221 gradually become smaller, the powder attached to the powder blocks is classified;

[0044] Two crushing rollers are arranged at the feeding end of the crushing box 221. The crushing rollers are driven by a power device 2241 with the same structure as the crushing component 224, so as to pre-treat the calcium oxide powder blocks through two crushing rollers moving in opposite directions, facilitating subsequent screening.

[0045] Furthermore, through the first fixing block 222a and the second fixing block 222c, the fiberglass elastic sheet 222b can be fixed between the filter plate 2222 and the inner wall of the crushing box 221. In this way, the fiberglass elastic sheet 222b can provide support for the filter plate 2222. When the filter plate 2222 at the head end shakes by means of the vibration motor, the fiberglass elastic sheet 222b can shake following the filter plate 2222, enabling the crushing box 221 to adapt to the shaking of the filter plate 2222 and reducing the influence on the crushing box 221 caused by the shaking of the filter plate 2222.

[0046] Since the shaking direction of the fiberglass elastic sheet 222b is the same as that of the filter plate 2222, it can provide buffering for the shaking of the filter plate 2222, and guide the filter plate 2222 to shake back and forth through the resilience of the fiberglass elastic sheet 222b.

[0047] Specifically, please refer to the appendix Figure 2 and 4 The powder filtering component 223 includes a grinding plate 2231 installed inside the crushing box 221 and at the bottom of the filter plate 2222, and a plurality of grinding rollers 2232 installed on the upper surface of the grinding plate 2231 and arranged in a linear array.

[0048] It should be noted that in this embodiment, after the calcium oxide powder blocks are classified by the filter plate 2222 and fall onto the surface of the grinding plate 2231, the powder continuously slides down through the inclined grinding plate 2231. During this process, the powder passing through the gap between the roller body and the grinding plate 2231 is rolled by the grinding rollers 2232 to shape and refine the powder, facilitating further grinding of the powder later.

[0049] Since the powder falls after classification, the coarser powder is processed by the most grinding rollers 2232 to maintain the particle size of the processed powder.

[0050] The distance between the highest end of the plate body of the grinding plate 2231 and the grinding roller 2232 at that place to the distance between the lowest end of the grinding plate 2231 and the grinding roller 2232 at that place continuously decreases, enabling the grinding rollers 2232 to more conveniently process the classified powder that falls near the roller body.

[0051] Specifically, please refer to the appendix Figure 2 and 5, the crushing component 224 includes a power device 2241 installed outside the crushing box 221 and arranged in sequence from top to bottom, and two crushing rollers 2242 connected to the power device 2241. The crushing rollers 2242 are rotatably connected to the crushing box 221 through bearings, and a guide plate 2243 installed inside the crushing box 221 is provided at the bottom end of the crushing rollers 2242;

[0052] The power device 2241 includes a gear 224a coaxially arranged with the crushing roller 2242, and a motor 224b connected to the crushing roller 2242. The two gears 224a are meshed with each other, and the motor 224b is installed on the outer surface of the crushing box 221;

[0053] A spiral conveyor 2211 is connected to the outer surface of the crushing box 221. A plurality of expansion joint bellows 2212 are arranged in a linear array at the top end of the spiral conveyor 2211. One end of the expansion joint bellows 2212 away from the spiral conveyor 2211 is connected to a discharge pipe 2213, and one end of the discharge pipe 2213 away from the expansion joint bellows 2212 is connected to the filter box 2223;

[0054] A plurality of feeding pipes 2216 are connected to the bottom end of the spiral conveyor 2211 in a linear array. One end of the feeding pipe 2216 away from the spiral conveyor 2211 is located at the top end of the adjacent crushing roller 2242;

[0055] It should be noted that in this embodiment, through the opposite rotation of the two crushing rollers 2242, the powder blocks falling between the two rollers are crushed. Through the guidance of the guide plate 2243, the powder blocks that have undergone the previous stage of crushing enter between the two crushing rollers 2242 at the next stage for further crushing. In this way, the relatively large-volume powder is processed multiple times to keep the volume of the discharged powder blocks consistent;

[0056] Further, the output shaft of the motor 224b drives the crushing roller 2242 to rotate. Since gears 224a are sleeved on both the crushing roller 2242 and the adjacent crushing roller 2242, and the two gears 224a are meshed with each other, the two crushing rollers 2242 are driven to rotate in opposite directions;

[0057] Further, the powder blocks enter the spiral conveyor 2211 through the discharge pipe 2213 and are lifted by the spiral conveyor 2211 so that the powder blocks can be lifted to a high place for processing;

[0058] During the process of the powder blocks entering the spiral conveyor 2211, since the discharge pipe 2213 and the spiral conveyor 2211 are connected through the expansion joint bellows 2212, the telescopic shaking of the expansion joint bellows 2212 reduces the discharge pipe 2213 following its connection.

[0059] Specifically, please refer to the attached Figure 1 and 2 , the feeding component 241 includes a first bin 2412 connected to the discharge end of the elevator 23, and a third feeder 2411 connected to the discharge end of the first bin 2412. The discharge end of the third feeder 2411 is connected to the feeding end of the grinding chamber 244;

[0060] A discharge plate 2215 is connected to the bottom end of the crushing box 221. Connecting rods 2214 are connected to multiple top corners of the upper surface of the discharge plate 2215. The upper surface of the connecting rod 2214 is connected to the lower surface of the filter plate 2222;

[0061] The digestion mechanism 30 includes a third bin 31 connected to the discharge end of the grinding chamber 244, a fourth feeder 32 connected to the discharge end of the third bin 31, and a digester 33 connected to the discharge end of the fourth feeder 32;

[0062] It should be noted that in this embodiment, the elevator 23 is used to lift the powder blocks discharged from the crushing box 221 to a high place for storage in the first bin 2412. The powder blocks inside the first bin 2412 are quantitatively discharged through the third feeder 2411;

[0063] Furthermore, through the arrangement of the connecting rod 2214, the discharge plate 2215 follows the filter plate 2222 to vibrate, so as to guide the discharge of the powder blocks falling on it through the vibrating discharge plate 2215;

[0064] Furthermore, the powder obtained by grinding in the grinding chamber 244 is stored in the third bin 31. The fourth feeder 32 guides the powder to be discharged from the third bin 31 and enter the interior of the digester 33, so as to prepare hydrated lime powder through the digester 33.

[0065] The specific operation method of the present invention is as follows:

[0066] When calcium oxide powder needs to be produced, first, the calcium oxide powder lumps inside the raw material bin 10 are continuously discharged through the first feeder 21. The discharged calcium oxide powder lumps enter the inner top of the crushing box 221 under the quantitative transportation of the first feeder 21. The powder lumps entering the box first come into contact with the filter plate 2222 at the top of the box. The filter plate 2222 continuously vibrates under the action of the vibration motor connected to it, so as to screen the powder attached to the powder lumps and the powder dropped during the screening process until the powder lumps fall into the filter box 2223, and the powder lumps are screened through the mesh holes on the filter box 2223. During this process, the powder lumps falling into the inner part of the filter box 2223 are transported by the pushing auger 2224 rotating in the box body, so as to fully contact the mesh holes on the filter box 2223, so that the powder lumps passing through the mesh holes fall onto the surface of the next-level filter plate 2222. In this way, the powder lumps continuously pass through the filter plates 2222 with gradually larger mesh holes and the filter box 2223 with gradually smaller mesh holes;

[0067] During the screening of the powder lumps, the powder lumps that cannot pass through the mesh holes of the box body in the filter box 2223 enter the inclined auger 2211 through the discharge pipe 2213 and are lifted by the inclined auger 2211, so that the powder lumps are lifted to a high place and discharged through the discharge pipe 2213 near this place. At this time, the powder lumps are just discharged between the two crushing rollers 2242 at the bottom end of the filter plate 2222 connected to the filter box 2223, so as to crush the powder lumps through the crushing rollers 2242;

[0068] After the powder lumps are crushed, through the guiding of the guiding plate 2243, the powder lumps that have been crushed at the previous level enter between the two crushing rollers 2242 at the next level for further crushing. In this way, the powder with a larger volume is processed multiple times to keep the volume of the discharged powder lumps consistent;

[0069] During the screening of the powder lumps, the powder falling onto the surface of the grinding plate 2231 through the filter plate 2222 slides down continuously along the inclined plate body. During this process, the powder passing through the gap between the roller body and the grinding plate 2231 is rolled by the grinding roller 2232 to shape and refine the powder, which is convenient for further grinding of the subsequent powder;

[0070] When the internal components of the crushing box 221 complete the processing of the calcium oxide powder lumps and the powder generated during the screening of the powder lumps, the powder lumps processed to a similar size are sent to the inside of the second feeder 242 through the elevator 23 and are quantitatively discharged into the grinding chamber 244 connected to it for grinding;

[0071] Receive the powder processed by the crushing box 221 through the first bin 2412, and convey the powder to the inside of the classifier 243 connected thereto through the third feeder 2411. Since the powder meets the judgment of the classifier 243 for the particle size required for powder production, the powder can be quickly exported for use;

[0072] Store the powder obtained by grinding through the grinding assembly 24 in the third bin 31, and guide the powder to be discharged from the third bin 31 and enter the inside of the digester 33 through the fourth feeder 32 to prepare slaked lime powder through the digester 33.

[0073] The above describes the present invention exemplarily in conjunction with the drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A calcium oxide powder making system, comprising a raw material bin (10), characterized in that, The discharge end of the raw material bin (10) is connected to a pretreatment mechanism (20), and the discharge end of the pretreatment mechanism (20) is connected to a digestion mechanism (30). The pretreatment mechanism (20) includes a first feeder (21) connected to the discharge end of the raw material bin (10), a crushing assembly (22) connected to the discharge end of the first feeder (21), and a hoist (23) connected to the discharge end of the crushing assembly (22). The discharge end of the hoist (23) is connected to a grinding assembly (24). The crushing assembly (22) includes a crushing box (221) connected to the discharge end of the first feeder (21), a vibration filtering component (222), a powder filtering component (223), and a crushing component (224) disposed inside the crushing box (221). The vibration filtering component (222), the powder filtering component (223), and the crushing component (224) are sequentially disposed inside the crushing box (221) from top to bottom. The vibration filtering component (222) includes a plurality of elastic supports (2221) installed inside the crushing box (221) and arranged from top to bottom, a filter plate (2222) connected to the elastic supports (2221), and a filter box (2223) installed on one side surface of the filter plate (2222). A feeding auger (2224) is rotatably connected to the inside of the filter box (2223) through a bearing. The powder filtering component (223) includes a grinding plate (2231) installed inside the crushing box (221) and located at the bottom end of the filter plate (2222), and a plurality of grinding rollers (2232) installed on the upper surface of the grinding plate (2231) and arranged in a linear array. The crushing component (224) includes a power device (2241) installed outside the crushing box (221) and arranged from top to bottom, and two crushing rollers (2242) connected to the power device (2241). The crushing rollers (2242) are rotatably connected to the crushing box (221) through bearings. A guide plate (2243) installed inside the crushing box (221) is provided at the bottom end of the crushing rollers (2242). The grinding assembly (24) includes a feeding component (241) and a second feeder (242) connected to the discharge end of the crushing box (221), a classifier (243) connected to the discharge end of the second feeder (242), and a grinding chamber (244) installed at the bottom end of the classifier (243) and connected to the feeding component (241).

2. The calcium oxide powder making system according to claim 1, characterized in that The elastic support (2221) includes a first fixing block (222a) installed at multiple top corners of the filter plate (2222), a fiberglass elastic sheet (222b) installed on the outer surface of the first fixing block (222a), and a second fixing block (222c) installed at one end of the fiberglass elastic sheet (222b) away from the first fixing block (222a), and the second fixing block (222c) is installed on the inner surface of the crushing box (221).

3. The calcium oxide powder making system according to claim 1, characterized in that, The power device (2241) includes a gear (224a) coaxially arranged with the crushing roller (2242), and a motor (224b) connected to the crushing roller (2242). The two gears (224a) are meshed with each other, and the motor (224b) is installed on the outer surface of the crushing box (221).

4. The calcium oxide powder making system according to claim 3, characterized in that, An inclined auger (2211) is connected to the outer surface of the crushing box (221). A plurality of expansion joint bellows (2212) are arranged in a linear array at the top end of the inclined auger (2211). One end of the expansion joint bellows (2212) away from the inclined auger (2211) is connected to a discharge pipe (2213), and one end of the discharge pipe (2213) away from the expansion joint bellows (2212) is connected to the filter box (2223); A plurality of feeding pipes (2216) are connected to the bottom end of the inclined auger (2211) in a linear array, and one end of the feeding pipe (2216) away from the inclined auger (2211) is located at the top end of an adjacent crushing roller (2242).

5. The calcium oxide powder making system according to claim 1, characterized in that The feeding component (241) includes a first bin (2412) connected to the discharge end of the elevator (23), and a third feeder (2411) connected to the discharge end of the first bin (2412). The discharge end of the third feeder (2411) is connected to the feeding end of the grinding chamber (244).

6. The calcium oxide powder making system according to claim 1, characterized in that, The bottom end of the crushing box (221) is connected to a discharge plate (2215). Connecting rods (2214) are connected to multiple top corners of the upper surface of the discharge plate (2215), and the upper surface of the connecting rods (2214) is connected to the lower surface of the filter plate (2222).

7. The calcium oxide powder making system according to claim 1, characterized in that, The digestion mechanism (30) includes a third bin (31) connected to the discharge end of the grinding chamber (244), a fourth feeder (32) connected to the discharge end of the third bin (31), and a digester (33) connected to the discharge end of the fourth feeder (32).

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