Crushing and digesting combined equipment for quick lime

The combined crushing and digestion system addresses screen clogging and wear issues in lime crushing, ensuring efficient particle discharge and improved digestion efficiency through enhanced screen design and distributed water/gas injection.

CN223096897UActive Publication Date: 2025-07-15HUBEI YUJIE ENVIRONMENTAL PROTECTION MATERIALS CO LTD
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Patent Information

Application Number
CN202422146742.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-07-15
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

Existing stone lime crushing and digestion processes face issues such as initial screen plate clogging, high-manganese steel wear, and inefficient discharge of crushed lime particles, along with concentrated water spraying and difficult cleaning in digestion devices.

Method used

A combined crushing and digestion system with improved screen plate design, high-chromium steel reinforcement, and distributed water and gas injection systems to prevent clogging and facilitate efficient discharge and cleaning.

Benefits of technology

The system effectively prevents screen plate clogging, reduces wear on high-manganese steel, enhances particle discharge, and improves digestion efficiency by ensuring uniform water distribution and easy cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

Crushing and digesting combined equipment for quick lime comprises a quick lime crushing device, a quick lime stock bin and a quick lime digesting device which are sequentially arranged, the quick lime crushing device comprises a supporting frame body and a crusher, the crusher comprises a crushing shell, an upper crushing cavity and a lower crushing cavity, and a quick lime blocky material inlet is formed in the top of the crushing shell; a crushed quicklime outlet is formed in the bottom of the crushing shell; the quick lime bin comprises a bin body, a quick lime granule feeding hole is formed in the top of the bin body, and a plurality of mounting lugs are arranged on the side wall of the bin body; the quick lime slaking device comprises a horizontal double-shaft stirrer, and a sealing cover plate is arranged at the top of the horizontal double-shaft stirrer. The quick lime crusher has the advantages that the upper sieve plate facilitates primary crushing of quick lime blocks, and blockage is effectively avoided. Quicklime granules in the stock bin are convenient to discharge, so that the workload of people is greatly reduced. The spraying water is added and dispersed, and the spraying part is convenient to disassemble and clean, so that the working efficiency of the digestion device is effectively improved.
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Description

Technical Field

[0001] The utility model relates to the field of lime treatment equipment, and particularly relates to a combined crushing and digestion equipment for quicklime. Background Art

[0002] Hammer crushers are commonly used in the field of quicklime crushing, and such hammer crushers are all provided with sieve plates at the bottom. This sieve plate structure can ensure the particle size of the discharged materials. However, when a double-stage crusher processes quicklime lumps, the particle sizes of the quicklime lumps are relatively large during primary crushing. When the sieve holes of the primary sieve plate are relatively small, it is easy to be blocked at the primary sieve plate after primary crushing, and the crushed quicklime lumps accumulate at the primary sieve plate, increasing the wear of the hammers. Therefore, it is necessary to improve the structure of the primary sieve plate to reduce the accumulation. During secondary crushing, high manganese alloy steel is often used for the secondary sieve plate, but problems such as cracks and chipping are likely to occur during the use of high manganese alloy steel. After being crushed, quicklime forms quicklime particles with a particle size of 5 - 15 mm, and the quicklime particles can be made into slaked lime after digestion. The formed quicklime particles after crushing often need to be stored in a temporary storage bin and then sent to a digestion device for digestion. When the existing quicklime particle bin is discharged for use after temporary storage and accumulation, sometimes the discharging is inconvenient, and it is necessary to use a rubber hammer to vigorously knock on the bin to facilitate the discharge, increasing the manual workload. The formed quicklime particles after crushing are then sent to a digestion device for digestion. The existing quicklime digestion device can use a horizontal double-shaft mixer with spraying water for the digestion reaction, but the existing double-shaft mixer often has the situation that the spraying water is too concentrated and the spraying part is easily blocked by quicklime and is not easy to clean, thus affecting the use of the digestion device. Content of the Utility Model

[0003] The purpose of the utility model is to provide a combined crushing and digestion equipment for quicklime aiming at the above defects.

[0004] The utility model includes a quicklime crushing device, a quicklime bin, and a quicklime digestion device arranged in sequence. The quicklime crushing device includes a support frame body and a crusher arranged thereon. The crusher includes a crushing shell and an upper crushing cavity and a lower crushing cavity arranged inside and communicating with each other. A quicklime lump material inlet is arranged at the top of the crushing shell, and a quicklime crushed material outlet is arranged at the bottom of the crushing shell; the quicklime bin includes a bin body, a quicklime particle material inlet is arranged at the top of the bin body, and a plurality of mounting ears are arranged on the side wall of the bin body; the quicklime digestion device includes a horizontal double-shaft mixer, and a sealing cover plate is arranged at the top of the horizontal double-shaft mixer.

[0005] The inlet of the lump quicklime material is connected to the upper crushing chamber, and the outlet of the crushed quicklime material is connected to the bottom of the lower crushing chamber. Both the upper crushing chamber and the lower crushing chamber are provided with ring hammer assemblies; an upper sieve plate is provided at the connection between the upper crushing chamber and the lower crushing chamber, and a lower sieve plate is provided at the connection between the lower crushing chamber and the outlet of the crushed quicklime material; the upper sieve plate is of a rectangular plate structure, which includes a plurality of horizontally strip plates integrally formed and a pair of vertically strip plates at both ends thereof. A set of reinforcing connection strip plates are provided at intervals at the bottom of the plurality of horizontally strip plates, and the reinforcing connection strip plates are arranged parallel to the vertically strip plates; the lower sieve plate is of an arc-shaped plate mechanism, and a plurality of sieve holes are evenly provided on the lower sieve plate. The lower sieve plate is composed of a surface layer plate a and a bottom layer plate b. The surface layer plate a is made of high manganese alloy steel, and the bottom layer plate b is made of high chromium cast iron hard alloy;

[0006] Below the outlet of the crushed quicklime material at the bottom of the crushing housing, there is a conveyor belt for crushed quicklime material. The discharging end of the conveyor belt for crushed quicklime material is directly above the inlet of the quicklime granular material. The silo body includes a straight cylinder part and a double-cone cylinder part connected to the bottom thereof. A plurality of guiding mechanisms are provided on the inner wall of the straight cylinder part from top to bottom. Each guiding mechanism includes an inverted material cylinder fixed to the inner wall of the straight cylinder part. The diameter of the top of the inverted material cylinder gradually decreases from top to bottom. A grid plate is also fixed to the bottom of the inverted material cylinder. On the outer wall of the straight cylinder part and at the top connection of each inverted material cylinder, a pair of vibration motors a are symmetrically provided; the double-cone cylinder part is composed of two inverted cone cylinders. The tops of the two inverted cone cylinders are connected to form an integral body and are connected to the straight cylinder part. A quicklime granular material discharging pipe with a discharging valve is connected to the bottom of each cone cylinder. Below the double-cone cylinder part, there is a screw conveyor. One end of the screw conveyor is provided with a pair of feeding interfaces, and the other end of the screw conveyor is provided with a discharging port. The quicklime granular material discharging pipes at the bottoms of the two cone cylinders are connected to a pair of feeding interfaces;

[0007] At the front end of the sealing cover plate, there is a quicklime granular material inlet pipe connected to the discharging port of the screw conveyor. Behind the quicklime granular material inlet pipe, a plurality of water inlet mechanisms and air extraction mechanisms are alternately arranged in sequence; the water inlet mechanism includes a cylindrical part penetrating through the sealing cover plate, a sealing top plate arranged on the top of the cylindrical part, and a spraying head arranged on the bottom of the cylindrical part. A water inlet branch pipe is connected to the sealing top plate, and the end of the water inlet branch pipe is connected to the water inlet main pipe; the air extraction mechanism includes an air extraction hood connected to the sealing cover plate and an air extraction branch pipe arranged on the top thereof. The end of the air extraction branch pipe is connected to the air extraction main pipe. At the tail end of the horizontal double-shaft mixer, there is a slaked lime discharging port with a discharging valve.

[0008] Preferably, the grid plate is a circular plate, and the edge of the grid plate is fixedly connected to the edge of the bottom of the inverted material cylinder. The mesh holes on the grid plate are square mesh holes, and the mesh hole size is not less than 150mm×150mm. The number of the plurality of guiding mechanisms is three, and the three guiding mechanisms are respectively located in the upper, middle and lower parts of the straight cylinder part. The edge of the top of the inverted material cylinder is fixedly connected to the inner wall of the straight cylinder part.

[0009] Preferably, a pair of vibration motors b are symmetrically arranged on the outer wall of the double-cone barrel part.

[0010] Preferably, the upper crushing cavity is located obliquely above the lower crushing cavity, one side of the lower part of the upper crushing cavity is communicated with the other side of the upper part of the lower crushing cavity, the ring hammer assemblies in the upper crushing cavity and the lower crushing cavity are respectively driven to rotate by two driving motors arranged on both sides of the support frame body, and high-strength alloy liners are arranged on the inner walls of the upper crushing cavity and the lower crushing cavity.

[0011] Preferably, through holes are formed in the surface layer plate a and the bottom layer plate b to form the sieve holes. The length of the reinforcing connecting strip is the same as that of the vertical strip. A dust-proof filter screen is bonded at the connection of the air extraction hood and the air extraction branch pipe.

[0012] Preferably, the upper part of the cylindrical part is located above the sealing cover plate, the lower part of the cylindrical part is located in the stirring cavity of the horizontal double-shaft mixer below the sealing cover plate, an external thread part is arranged at the bottom of the cylindrical part, the spray head is a cover with an internal thread part adapted to the external thread part, and a plurality of water outlet holes are uniformly arranged on the cover.

[0013] Preferably, a plurality of installation screw holes are arranged on the edge of the sealing cover plate, fixing screw holes adapted to the installation screw holes are arranged at the top of the shell of the horizontal double-shaft mixer, a rubber gasket with a screw through hole is further arranged below the sealing cover plate, and a plurality of screws sequentially pass through the installation screw holes and the screw through holes and are connected with the fixing screw holes.

[0014] Preferably, the number of the water inlet mechanism and the air extraction mechanism is four each, and they are evenly distributed on the top of the sealing cover plate.

[0015] The advantages of the present utility model are as follows: The upper sieve plate forms a sieve plate with a plurality of rectangular notches through a plurality of cross bars, a pair of vertical bars and a group of reinforcing connecting bars, which is convenient for the primary crushing of quicklime blocks and effectively avoids blockage. The surface layer plate of high manganese alloy steel in the lower sieve plate has strong wear resistance and impact resistance. Compared with other materials, the bottom layer plate of high chromium cast iron hard alloy has the characteristics of high hardness, high bending strength, impact resistance, thermal fatigue resistance, good thermal hardness and low cost. It is arranged under the high manganese alloy steel layer, which reduces the problems such as easy cracking and chipping of the high manganese alloy steel to a certain extent. The quicklime granular material in the silo is convenient to discharge, greatly reducing the workload of people. The spraying water is dispersed, and the spraying part is convenient for disassembly and cleaning, effectively improving the working efficiency of the digestion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the connection relationship of the present utility model.

[0017] Figure 2 It is a schematic structural diagram of the quicklime crushing device.

[0018] Figure 3 It is a schematic structural diagram of the upper sieve plate.

[0019] Figure 4 It is a schematic structural diagram of the lower sieve plate.

[0020] Figure 5 It is a schematic structural diagram of the surface layer plate a and the bottom layer plate b.

[0021] Figure 6 It is a schematic structural diagram of the quicklime bin.

[0022] Figure 7 It is a schematic structural diagram of the material guiding mechanism.

[0023] Figure 8 It is a schematic structural diagram of the grid plate.

[0024] Figure 9 It is a schematic structural diagram of the double conical cylinder part.

[0025] Figure 10 It is a schematic structural diagram of the quicklime digestion device.

[0026] Figure 11 It is a schematic structural diagram of the sealing cover plate.

[0027] Figure 12 It is a schematic structural diagram of the water inlet mechanism.

[0028] Figure 13 It is a schematic structural diagram of the cylindrical part.

[0029] Figure 14 It is a schematic structural diagram of the sealing cover. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention. It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, in the description of the present invention, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] As shown in the drawings, the present invention includes a quicklime crushing device 100, a quicklime silo 101, and a quicklime slaking device arranged in sequence. The quicklime crushing device includes a support frame body 1 and a crusher 2 arranged thereon. The crusher 2 includes a crushing housing 3 and an upper crushing chamber 4 and a lower crushing chamber 5 arranged inside and communicating with each other. The top of the crushing housing 3 is provided with a quicklime lump material inlet 6, and the bottom of the crushing housing 3 is provided with a quicklime crushed material outlet 7; the quicklime silo 101 includes a silo body 20. The top of the silo body 20 is provided with a quicklime granular material inlet, and the side wall of the silo body 20 is provided with a plurality of mounting ears; the quicklime slaking device 102 includes a horizontal double-shaft mixer 31, and the top of the horizontal double-shaft mixer 31 is provided with a sealing cover plate 32; the slaked lime drying device 103 includes a bottom support 50 and a drying housing 51 mounted thereon. One side of the drying housing 51 is provided with a driving motor 52, and the output shaft of the driving motor is connected to a slaked lime stirring mechanism arranged inside the drying housing 51 through a coupling;

[0035] The inlet 6 of the lump quicklime material is connected to the upper crushing chamber 4, and the outlet 7 of the crushed quicklime material is connected to the bottom of the lower crushing chamber 5. Both the upper crushing chamber 4 and the lower crushing chamber 5 are provided with ring hammer assemblies; an upper sieve plate 10 is provided at the connection between the upper crushing chamber 4 and the lower crushing chamber 5, and a lower sieve plate 11 is provided at the connection between the lower crushing chamber 5 and the outlet 7 of the crushed quicklime material; the upper sieve plate 10 is of a rectangular plate structure, which includes a plurality of horizontally arranged strip plates 12 integrally formed and a pair of vertically arranged strip plates 13 at both ends thereof. A group of reinforcing connecting strip plates 14 are arranged at intervals at the bottom of the plurality of horizontally arranged strip plates 12, and the reinforcing connecting strip plates 14 are arranged parallel to the vertically arranged strip plates 13; the lower sieve plate 11 is of an arc-shaped plate mechanism, and a plurality of sieve holes 15 are evenly arranged on the lower sieve plate 11. The lower sieve plate 11 is composed of a surface layer plate a16 and a bottom layer plate b17. The surface layer plate a16 is made of high manganese alloy steel, and the bottom layer plate b17 is made of high chromium cast iron hard alloy;

[0036] Below the outlet 7 of the crushed quicklime material at the bottom of the crushing housing 3, there is a conveyor belt for the crushed quicklime material. The discharging end of the conveyor belt for the crushed quicklime material is directly above the inlet of the quicklime granular material. The silo body 20 includes a straight cylinder part 21 and a double-cone cylinder part 22 connected to the bottom thereof. A plurality of guiding mechanisms are provided on the inner wall of the straight cylinder part 21 from top to bottom. Each guiding mechanism includes a pouring cylinder 23 fixed to the inner wall of the straight cylinder part 21. The diameter of the pouring cylinder 23 gradually decreases from the top to the bottom, and a grid plate 24 is also fixed to the bottom of the pouring cylinder 23. A pair of vibration motors a25 are symmetrically arranged on the outer wall of the straight cylinder part 21 and at the top connection of each pouring cylinder 23; the double-cone cylinder part 22 is composed of two inverted cone cylinders 26. The tops of the two inverted cone cylinders 26 are connected to form an integral body and are connected to the straight cylinder part 21. A quicklime granular material discharging pipe 27 with a discharging valve is connected to the bottom of each cone cylinder 26. A screw conveyor 28 is provided below the double-cone cylinder part 22. One end of the screw conveyor 28 is provided with a pair of feeding interfaces, and the other end of the screw conveyor 28 is provided with a discharging port 30. The quicklime granular material discharging pipes 27 at the bottoms of the two cone cylinders 26 are connected to a pair of feeding interfaces;

[0037] The front end of the sealing cover plate 32 is provided with a quicklime granular material inlet pipe 33 connected to the discharge port 30 of the screw conveyor 28. Behind the quicklime granular material inlet pipe 33, a plurality of water inlet mechanisms 34 and air extraction mechanisms 35 are alternately arranged in sequence; the water inlet mechanism 34 includes a cylindrical part 36 penetrating through the sealing cover plate 32, a sealing top plate 37 arranged at the top of the cylindrical part 36, and a spray head arranged at the bottom of the cylindrical part 36. An inlet water branch pipe 38 is connected to the sealing top plate 37, and the end of the inlet water branch pipe 38 is connected to the inlet water main pipe 39; the air extraction mechanism 35 includes an air extraction hood 40 connected to the sealing cover plate 32 and an air extraction branch pipe 41 arranged at the top thereof. The end of the air extraction branch pipe 41 is connected to the air extraction main pipe 42. The tail end of the horizontal double-shaft mixer 31 is provided with a slaked lime discharge port 43 with a discharge valve.

[0038] In another technical solution, the grid plate 24 is a circular plate, and the edge of the grid plate 24 is fixedly connected to the edge of the bottom of the tipping barrel 23. The mesh holes on the grid plate 24 are square mesh holes, and the mesh hole size is not less than 150 mm × 150 mm. The number of the plurality of material guiding mechanisms is three, and the three material guiding mechanisms are respectively located at the upper, middle, and lower parts of the straight barrel part 21. The edge of the top of the tipping barrel 23 is fixedly connected to the inner wall of the straight barrel part 21.

[0039] In another technical solution, a pair of vibration motors b 29 are symmetrically arranged on the outer wall of the double-cone barrel part 22.

[0040] In another technical solution, the upper crushing cavity 4 is located obliquely above the lower crushing cavity 5. One side of the lower part of the upper crushing cavity 4 is communicated with the other side of the upper part of the lower crushing cavity 5. The ring hammer assemblies in the upper crushing cavity 4 and the lower crushing cavity 5 are respectively driven to rotate by two driving motors 8 arranged on both sides of the support frame body 1. High-strength alloy liners are arranged on the inner walls of the upper crushing cavity 4 and the lower crushing cavity 5.

[0041] In another technical solution, through holes are formed on the surface layer plate a 16 and the bottom layer plate b 17 to form the sieve holes 15. The length of the reinforcing connecting strip plate 14 is the same as the length of the vertical strip plate 1. A dust-proof filter screen is bonded at the connection of the air extraction hood 40 and the air extraction branch pipe 41.

[0042] In another technical solution, the upper part of the cylindrical part 36 is located above the sealing cover plate 32, the lower part of the cylindrical part 36 is located in the mixing cavity of the horizontal double-shaft mixer 31 below the sealing cover plate 32. The bottom of the cylindrical part 36 is provided with an external thread part 50. The spray head is a cover 52 with an internal thread part 51 adapted to the external thread part 50. A plurality of water outlet holes 53 are uniformly arranged on the cover 52.

[0043] In another technical solution, a plurality of mounting screw holes are provided at the edge of the sealing cover plate 32, and fixing screw holes adapted to the mounting screw holes are provided at the top of the housing of the horizontal double-shaft mixer 31. A rubber gasket with screw through holes is further provided below the sealing cover plate 32. A plurality of screws sequentially pass through the mounting screw holes and the screw through holes and are connected to the fixing screw holes.

[0044] In another technical solution, the number of the water inlet mechanism 34 and the air extraction mechanism 35 is four each, and they are evenly distributed on the top of the sealing cover plate 32.

[0045] Working mode: The lumpy quicklime obtained after burning limestone is added into the upper crushing chamber 4 of the crusher 2 through the lumpy quicklime inlet 6. After being primarily crushed by the ring hammer assembly in the upper crushing chamber 4, it enters the lower crushing chamber 5 through the upper sieve plate 10. After being crushed again by the ring hammer assembly in the lower crushing chamber 5, the particle size is further reduced, and it is discharged to the quicklime crushed material conveyor belt through the lower sieve plate 11 and the quicklime crushed material outlet 7 of the lower crushing chamber 5;

[0046] The crushed quicklime granular material on the quicklime crushed material conveyor belt enters through the quicklime granular material inlet at the top of the bin body 20 and is then temporarily stored in the bin body 20. When digestion is required, after opening the discharge valve, start the vibration motor a 25, the vibration motor b 29, and the screw conveyor 28, and the quicklime granular material can be quickly discharged. The pouring cylinder 23 cooperates with the grid plate 24 at its bottom, and under the vibration of the vibration motor a, the quicklime granular material can be quickly guided downward, and then through the cooperation of two inverted conical cylinders 26 and the vibration motor b, the quicklime granular material is sent to the screw conveyor 28;

[0047] The discharge port 30 of the screw conveyor 28 adds the crushed quicklime granular material into the mixing cavity of the horizontal double-shaft mixer 31 through the lime granular material inlet pipe 33 at the front end of the sealing cover plate 32. Then, spray water addition and hot gas extraction are carried out through a plurality of water inlet mechanisms 34 and air extraction mechanisms 35. Stirring and digestion are carried out through the double spiral stirring shaft in the horizontal double-shaft mixer 31. After digestion is completed, the slaked lime is discharged through the slaked lime discharge port 43 with a discharge valve.

[0048] The above embodiments are only used to illustrate the technical solutions and features of the present invention, and their purpose is to better enable those familiar with the technology to implement it, and cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention are within the protection scope of the present invention. Those not described in detail are prior arts.

Claims

1. A combined crushing and digestion device for quicklime, comprising a quicklime crushing device (100), a quicklime silo (101), and a quicklime digestion device (102) arranged in sequence; the quicklime crushing device includes a support frame body (1) and a crusher (2) arranged thereon, the crusher (2) includes a crushing housing (3) and an upper crushing cavity (4) and a lower crushing cavity (5) arranged therein and communicated with each other, a quicklime lump material inlet (6) is arranged at the top of the crushing housing (3), and a quicklime crushed material outlet (7) is arranged at the bottom of the crushing housing (3); the quicklime silo (101) includes a silo body (20), a quicklime granular material inlet is arranged at the top of the silo body (20), and a plurality of mounting ears are arranged on the side wall of the silo body (20); the quicklime digestion device (102) includes a horizontal double-shaft mixer (31), and a sealing cover plate (32) is arranged at the top of the horizontal double-shaft mixer (31), and it is characterized in that, the quicklime lump material inlet (6) is communicated with the upper crushing cavity (4), the quicklime crushed material outlet (7) is connected to the bottom of the lower crushing cavity (5), and ring hammer assemblies are arranged in both the upper crushing cavity (4) and the lower crushing cavity (5); an upper sieve plate (10) is arranged at the connection of the upper crushing cavity (4) and the lower crushing cavity (5), and a lower sieve plate (11) is arranged at the connection of the lower crushing cavity (5) and the quicklime crushed material outlet (7); the upper sieve plate (10) is of a rectangular plate structure, which includes a plurality of horizontal strip plates (12) integrally formed and a pair of vertical strip plates (13) at both ends thereof, a group of reinforcing connection strip plates (14) are arranged at intervals at the bottom of the plurality of horizontal strip plates (12), and the reinforcing connection strip plates (14) are arranged parallel to the vertical strip plates (13); the lower sieve plate (11) is of an arc plate mechanism, a plurality of sieve holes (15) are uniformly arranged on the lower sieve plate (11), the lower sieve plate (11) is composed of a surface layer plate a (16) and a bottom layer plate b (17), the surface layer plate a (16) is made of high manganese alloy steel, and the bottom layer plate b (17) is made of high chromium cast iron hard alloy; Below the quicklime fines outlet (7) at the bottom of the broken housing (3), there is a quicklime fines conveyor belt. The discharge end of the quicklime fines conveyor belt is directly above the quicklime granular material inlet. The silo body (20) includes a straight cylinder part (21) and a double-cone cylinder part (22) connected to its bottom. A plurality of material guiding mechanisms are provided on the inner wall of the straight cylinder part (21) from top to bottom. Each material guiding mechanism includes an inverted material cylinder (23) fixed to the inner wall of the straight cylinder part (21). The diameter of the top of the inverted material cylinder (23) gradually decreases towards the bottom. A grid plate (24) is also fixed to the bottom of the inverted material cylinder (23). On the outer wall of the straight cylinder part (21) and at the top connection of each inverted material cylinder (23), a pair of vibration motors a (25) are symmetrically provided; The double-cone cylinder part (22) is composed of two inverted cone cylinders (26). The tops of the two inverted cone cylinders (26) are connected together and connected to the straight cylinder part (21). A quicklime granular material discharge pipe (27) with a discharge valve is connected to the bottom of each cone cylinder (26). Below the double-cone cylinder part (22), there is a screw conveyor (28). One end of the screw conveyor (28) is provided with a pair of feed interfaces, and the other end of the screw conveyor (28) is provided with a discharge port (30). The quicklime granular material discharge pipes (27) at the bottoms of the two cone cylinders (26) are connected to a pair of feed interfaces; At the front end of the sealing cover plate (32), there is a quicklime granule inlet pipe (33) connected to the discharge port (30) of the screw conveyor (28). Behind the quicklime granule inlet pipe (33), a plurality of water inlet mechanisms (34) and air extraction mechanisms (35) are alternately arranged in sequence; The water inlet mechanism (34) includes a cylindrical part (36) penetrating through the sealing cover plate (32), a sealing top plate (37) arranged at the top of the cylindrical part (36), and a spray head arranged at the bottom of the cylindrical part (36). A water inlet branch pipe (38) is connected to the sealing top plate (37), and the end of the water inlet branch pipe (38) is connected to the water inlet main pipe (39); The air extraction mechanism (35) includes an air extraction hood (40) connected to the sealing cover plate (32) and an air extraction branch pipe (41) arranged at its top. The end of the air extraction branch pipe (41) is connected to the air extraction main pipe (42). At the tail end of the horizontal double-shaft mixer (31), there is a slaked lime discharge port (43) with a discharge valve.

2. The crushing and digestion combined equipment for quicklime according to claim 1, characterized in that The grid plate (24) is a circular plate. The edge of the grid plate (24) is fixedly connected to the edge of the bottom of the inverted material cylinder (23). The mesh holes on the grid plate (24) are square mesh holes, and the mesh hole size is not less than 150mm×150mm.

3. The crushing and digestion combined equipment for quicklime according to claim 1, characterized in that On the outer wall of the double-cone cylinder part (22), a pair of vibration motors b (29) are also symmetrically provided.

4. A combined crushing and digestion device for quicklime according to claim 1, characterized in that, The upper crushing chamber (4) is located obliquely above the lower crushing chamber (5). The lower side of the upper part of the upper crushing chamber (4) is connected to the upper side of the other part of the upper part of the lower crushing chamber (5). The ring hammer assemblies in the upper crushing chamber (4) and the lower crushing chamber (5) are respectively driven to rotate by two driving motors (8) arranged on both sides of the support frame body (1). High-strength alloy liners are provided on the inner walls of the upper crushing chamber (4) and the lower crushing chamber (5).

5. The crushing and digestion combined equipment for quicklime according to claim 1, characterized in that, Holes penetrating through the surface board a (16) and the bottom board b (17) are provided to form the sieve holes (15).

6. The crushing and digestion combined equipment for quicklime according to claim 1, characterized in that, The upper part of the cylindrical part (36) is located above the sealing cover plate (32), and the lower part of the cylindrical part (36) is located in the mixing cavity of the horizontal double-shaft mixer (31) below the sealing cover plate (32). An external thread part (50) is provided at the bottom of the cylindrical part (36). The spray head is a cover (52) with an internal thread part (51) adapted to the external thread part (50). A plurality of water outlet holes (53) are evenly provided on the cover (52).

7. A combined crushing and digestion device for quicklime according to claim 1, characterized in that, A plurality of mounting screw holes are provided at the edge of the sealing cover plate (32). Fixed screw holes adapted to the mounting screw holes are provided at the top of the housing of the horizontal double-shaft mixer (31). A rubber gasket with a screw through hole is further provided below the sealing cover plate (32). A plurality of screws sequentially pass through the mounting screw holes and the screw through holes and are connected to the fixed screw holes.

8. A combined crushing and digestion device for quicklime according to claim 1, characterized in that, The number of the water inlet mechanism (34) and the air extraction mechanism (35) is four each, and they are evenly distributed on the top of the sealing cover plate (32).