Slaked lime production and preparation system
By improving the screen plate structure and spray water system, the problems of screen plate blockage, cracks and uneven drying in quicklime production are solved, and efficient quicklime particle discharge and slurry production are achieved.
Patent Information
- Application Number
- CN202422146366.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During the existing quicklime production process, the primary screen plate is prone to clogging, the secondary screen plate is prone to cracks, the silo is inconvenient to unload the material silo, the concentration of spray water leads to difficulty in cleaning, and uneven drying.
The rectangular upper screen plate is composed of multiple horizontal and vertical strips, the lower screen plate made of high manganese alloy steel and high chromium cast iron alloy, the vibration motor assists in unloading, the dispersed water spray system, and the screw conveyor is heated and dried with the heat conducting medium coil.
It effectively avoids clogging and cracks in the screen plate, reduces the difficulty of manual unloading, improves the working efficiency and drying uniformity of the digestive device, and reduces cleaning difficulties.
Smart Images
Figure CN223263920U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lime processing equipment, in particular to a slaked lime production and preparation system. Background Art
[0002] Hammer crushers are commonly used in the crushing of quicklime. These hammer crushers are equipped with a screen plate at the bottom. This screen plate structure ensures the output particle size, but when processing quicklime lumps in a two-stage crusher, the quicklime lumps are generally large in size during the primary crushing process. Smaller mesh sizes in the primary screen plate can easily clog the plate after crushing, causing quicklime fragments to accumulate on the plate and increase wear on the hammer heads. Therefore, improvements are needed to reduce this accumulation. High-manganese alloy steel is often used for the secondary screen plate during the secondary crushing process, but this steel is also prone to cracking and chipping during use. Quicklime is crushed into quicklime particles with a particle size of 5-15 mm. These particles are then digested to produce slaked lime. The crushed quicklime particles often require temporary storage before being sent to a digestion unit for digestion. Existing quicklime granule silos can sometimes be inconvenient to discharge after temporary storage, requiring vigorous tapping with a rubber hammer to facilitate discharge, increasing manual labor. After crushing, the quicklime particles are fed into a digestion unit for digestion. Existing quicklime digestion units can use a horizontal twin-shaft mixer with spray water to carry out the digestion reaction. However, existing twin-shaft mixers often suffer from excessively concentrated spray water and the spray area easily becomes clogged with quicklime, making it difficult to clean, which in turn affects the use of the digestion unit. After crushing, the quicklime particles are fed into a digestion unit for digestion and then dried. Existing slaked lime drying units mostly use screw conveyors for drying. This drying method can result in uneven drying and incomplete drying of some slaked lime. Utility Model Content
[0003] The purpose of this utility model is to provide a slaked lime production and preparation system in view of the above-mentioned defects.
[0004] The utility model includes a quicklime crushing device, a quicklime silo, a quicklime digestion device and a slaked lime drying device which are arranged in sequence. The quicklime crushing device includes a supporting frame and a crusher arranged thereon. The crusher includes a crushing shell and an upper crushing chamber and a lower crushing chamber arranged therein and connected to each other. The top of the crushing shell is provided with a quicklime block material inlet, and the bottom of the crushing shell is provided with a quicklime crushed material outlet. The quicklime silo includes a silo, the top of the silo is provided with a quicklime granular material inlet, and the side wall of the silo is provided with a plurality of mounting ears. The quicklime digestion device includes a horizontal twin-shaft mixer, and the top of the horizontal twin-shaft mixer is provided with a sealing cover plate. The slaked lime drying device includes a bottom bracket and a drying shell installed thereon. A driving motor is provided on one side of the drying shell, and the output shaft of the driving motor is connected to a slaked lime stirring mechanism arranged in the drying shell through a coupling.
[0005] The quicklime block material inlet is connected to the upper crushing chamber, and the quicklime crushed material outlet is connected to the bottom of the lower crushing chamber. Both the upper crushing chamber and the lower crushing chamber are provided with a ring hammer assembly; an upper screen plate is provided at the connection between the upper crushing chamber and the lower crushing chamber, and a lower screen plate is provided at the connection between the lower crushing chamber and the quicklime crushed material outlet; the upper screen plate is a rectangular plate structure, which includes a plurality of integrally formed horizontal strips and a pair of vertical strips located at both ends thereof, and a group of reinforcing connecting strips are provided at intervals at the bottom of the plurality of horizontal strips, and the reinforcing connecting strips are arranged parallel to the vertical strips; the lower screen plate is an arc-shaped plate mechanism, and a plurality of sieve holes are evenly arranged on the lower screen plate. The lower screen plate consists of a surface plate a and a bottom plate b, the surface plate a is made of high manganese alloy steel, and the bottom plate b is made of high chromium cast iron cemented carbide;
[0006] A quicklime crushing conveyor belt is provided below the quicklime crushing outlet at the bottom of the crushing shell. The discharge end of the quicklime crushing conveyor belt is located just above the quicklime granular material feed port. The bin body comprises a straight cylinder and a double-conical cylinder connected to the bottom thereof. The inner wall of the straight cylinder is provided with a plurality of material guide mechanisms from top to bottom. Each material guide mechanism comprises a material pouring barrel fixed to the inner wall of the straight cylinder. The diameter of the material pouring barrel gradually decreases from the top to the bottom. A mesh plate is also fixed to the bottom of the material pouring barrel. The outer wall of the straight cylinder is located at the bottom of each material pouring barrel. A pair of vibration motors a are symmetrically provided at the top connection; the double-conical cylinder portion is composed of two inverted conical cylinders, the tops of the two inverted conical cylinders are connected to form a whole and connected to the straight cylinder portion, the bottom of each conical cylinder is connected to a quicklime particle discharge pipe with a discharge valve, a screw conveyor is provided below the double-conical cylinder portion, one end of the screw conveyor is provided with a pair of feed interfaces, the other end of the screw conveyor is provided with a discharge port, and the lime particle discharge pipes at the bottom of the two conical cylinders are connected to the pair of feed interfaces;
[0007] The front end of the sealing cover plate is provided with a quicklime granular material inlet pipe connected to the discharge port of the screw conveyor, and a plurality of water inlet mechanisms and air exhaust mechanisms are alternately provided behind the quicklime granular material inlet pipe; the water inlet mechanism includes a cylindrical portion penetrating the sealing cover plate, a sealing top plate provided on the top of the cylindrical portion, and a nozzle head provided at the bottom of the cylindrical portion; 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 exhaust mechanism includes an exhaust hood connected to the sealing cover plate and an exhaust branch pipe provided on the top thereof, the end of the exhaust branch pipe is connected to the exhaust main pipe; a slaked lime discharge port with a discharge valve is provided at the tail end of the horizontal twin-shaft mixer;
[0008] The drying shell is a spindle-shaped structure. A slaked lime material inlet is provided at the top of the drying shell and a slaked lime drying material outlet is provided at the bottom. A slaked lime conveyor belt is provided below the slaked lime discharge port. The discharge end of the slaked lime conveyor belt is located directly above the slaked lime material inlet. A hot air exhaust pipe is connected to the side wall of the slaked lime material inlet. The drying shell is divided into an inner shell layer and an outer shell layer. A heat-conducting medium coil with a semicircular tube structure is welded on the outer wall of the inner shell layer. The heat-conducting medium coil is evenly laid from one side of the drying shell to the other side. The gap between the inner shell layer and the outer shell layer, except for the heat-conducting medium coil, is filled with thermal insulation asbestos. The slaked lime stirring mechanism includes a rotating shaft connected to a coupling and a slaked lime stirring rod group arranged on the rotating shaft. The slaked lime stirring rod group includes a pair of middle stirring rods a and multiple pairs of side stirring rods b symmetrically distributed on both sides thereof.
[0009] Preferably, the mesh plate is a circular plate, the edge of the mesh plate being fixedly connected to the edge of the bottom of the pouring barrel. The mesh holes on the mesh plate are square, with a mesh size of not less than 150 mm x 150 mm. The plurality of material guide mechanisms are three, located at the top, middle, and bottom of the straight barrel portion, respectively. The edge of the top of the pouring barrel is fixedly connected to the inner wall of the straight barrel portion.
[0010] Preferably, a pair of vibration motors b are symmetrically provided on the outer wall of the double-conical cylinder.
[0011] Preferably, the upper crushing chamber is located obliquely above the lower crushing chamber, one side of the lower part of the upper crushing chamber is connected to the other side of the upper part of the lower crushing chamber, the ring hammer assemblies in the upper crushing chamber and the lower crushing chamber are respectively driven to rotate by two drive motors arranged on both sides of the support frame, and high-strength alloy liners are provided on the inner walls of the upper crushing chamber and the lower crushing chamber.
[0012] Preferably, the surface plate a and the bottom plate b are provided with interconnected holes to form the sieve holes. The length of the reinforcing connecting strip is the same as that of the vertical strip. A dust filter is bonded to the connection between the exhaust hood and the exhaust branch pipe.
[0013] Preferably, the upper part of the cylindrical part is located above the sealing cover plate, and the lower part of the cylindrical part is located in the mixing chamber of the horizontal twin-shaft mixer below the sealing cover plate. The bottom of the cylindrical part is provided with an external threaded part, and the nozzle head is a sealing cover with an internal threaded part matching the external threaded part, and a plurality of water outlet holes are evenly provided on the sealing cover.
[0014] Preferably, the edge of the sealing cover is provided with multiple mounting screw holes, the top of the shell of the horizontal twin-shaft mixer is provided with fixing screw holes that are compatible with the mounting screw holes, and a rubber sealing gasket with screw through holes is also provided under the sealing cover, and multiple screws pass through the mounting screw holes and the screw through holes in turn to connect with the fixing screw holes.
[0015] Preferably, the number of the water inlet mechanisms and the air extraction mechanisms are both four, and they are evenly distributed on the top of the sealing cover plate.
[0016] Preferably, the medium inlet pipe of the heat transfer medium coil is located on one side of the drying shell, and the medium outlet pipe is located on the other side of the drying shell. The medium inlet pipe and the medium outlet pipe penetrate the outer layer of the shell and are connected to the medium circulation pipe. The medium circulation pipe is provided with a heat transfer medium circulation heating device. The heat transfer medium circulation heating device is a thermal oil circulation heating device.
[0017] Preferably, the ends of a pair of middle stirring rods a are fixedly connected to the horizontal stirring block a, the number of the multiple pairs of side stirring rods b is two pairs, and the ends of the side stirring rods b are fixedly connected to the inclined stirring blocks b.
[0018] Preferably, the hot gas exhaust pipe is connected to the air extraction pump through an air extraction pipe. The inner layer of the shell is made of high thermal conductivity alloy steel, and the heat conducting medium coil is an aluminum tube or a copper tube.
[0019] The advantages of the utility model are as follows: the upper sieve plate is formed by a plurality of horizontal strips, a pair of vertical strips and a group of reinforced connecting strips to form a sieve plate with multiple rectangular notches, which is convenient for the primary crushing of quicklime blocks and effectively avoids clogging. The surface plate of high manganese alloy steel in the lower sieve plate has strong wear resistance and impact resistance. Compared with other materials, the bottom plate of high chromium cast iron cemented carbide has higher hardness, bending strength and impact resistance, thermal fatigue toughness, good thermal hardness and low cost. It is arranged in the lower layer of high manganese alloy steel, which to a certain extent reduces the problems of high manganese alloy steel being prone to cracks, collapse and other problems. The quicklime particles in the silo are easy to discharge, which greatly reduces the workload of people. The spray water is dispersed and the spray part is easy to disassemble and clean, which effectively improves the working efficiency of the digestion device. The drying is uniform, which can effectively avoid the situation where the slaked lime cannot be fully dried. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the connection relationship of the present utility model.
[0021] Figure 2It is a structural diagram of the quicklime crushing device.
[0022] Figure 3 Schematic diagram of the structure of the upper sieve plate.
[0023] Figure 4 Schematic diagram of the structure of the lower screen plate.
[0024] Figure 5 Schematic diagram of the structure of the surface plate a and the bottom plate b.
[0025] Figure 6 This is a structural diagram of the quicklime silo.
[0026] Figure 7 It is a structural diagram of the material guiding mechanism.
[0027] Figure 8 Schematic diagram of the grid panel structure.
[0028] Figure 9 It is a structural diagram of the double-conical cylinder.
[0029] Figure 10 It is a structural diagram of the quicklime slaking device.
[0030] Figure 11 It is a structural diagram of the sealing cover.
[0031] Figure 12 It is a structural diagram of the water inlet mechanism.
[0032] Figure 13 It is a structural diagram of the cylindrical part.
[0033] Figure 14 Schematic diagram of the cover structure.
[0034] Figure 15 It is a structural diagram of the slaked lime drying device.
[0035] Figure 16 It is a structural diagram of the slaked lime stirring mechanism. DETAILED DESCRIPTION
[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0038] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use. This is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, if the terms "first", "second", etc. appear in the description of the present invention, they are only used to distinguish the description and should not be understood as indicating or implying relative importance.
[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0040] As shown in the accompanying drawings, the present invention includes a quicklime crushing device 100, a quicklime silo 101, a quicklime digestion device 102 and a slaked lime drying device 103 arranged in sequence. The quicklime crushing device includes a supporting frame 1 and a crusher 2 arranged thereon. The crusher 2 includes a crushing shell 3 and an upper crushing chamber 4 and a lower crushing chamber 5 arranged therein and connected to each other. The top of the crushing shell 3 is provided with a quicklime block material inlet 6, and the bottom of the crushing shell 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 digestion device 102 includes a horizontal twin-shaft mixer 31, the top of the horizontal twin-shaft mixer 31 is provided with a sealing cover plate 32; the slaked lime drying device 103 includes a bottom bracket 50 and a drying shell 51 installed thereon, one side of the drying shell 51 is provided with a drive motor 52, and the output shaft of the drive motor is connected to the slaked lime stirring mechanism arranged in the drying shell 51 through a coupling;
[0041] The quicklime block material inlet 6 is communicated with the upper crushing chamber 4, and the quicklime crushed material outlet 7 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 a ring hammer assembly; 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 quicklime crushed material outlet 7; the upper sieve plate 10 is a rectangular plate structure, which includes a plurality of integrally formed horizontal strips 12 and a pair of vertical strips 13 located at both ends thereof, and a group of reinforcing connecting strips 14 are provided at intervals at the bottom of the plurality of horizontal strips 12, and the reinforcing connecting strips 14 are arranged parallel to the vertical strips 13; the lower sieve plate 11 is an arc-shaped plate mechanism, and a plurality of sieve holes 15 are evenly provided on the lower sieve plate 11. The lower sieve plate 11 is composed of a surface plate a16 and a bottom plate b17. The surface plate a16 is made of high manganese alloy steel, and the bottom plate b17 is made of high chromium cast iron cemented carbide;
[0042] A quicklime crushing conveyor belt is provided below the quicklime crushing outlet 7 at the bottom of the crushing shell 3. The discharge end of the quicklime crushing conveyor belt is located just above the quicklime granular material feed port. The silo 20 comprises a straight cylindrical portion 21 and a double-conical cylindrical portion 22 connected to the bottom thereof. The inner wall of the straight cylindrical portion 21 is provided with a plurality of material guiding mechanisms from top to bottom. Each material guiding mechanism comprises a pouring barrel 23 fixed to the inner wall of the straight cylindrical portion 21. The diameter of the pouring barrel 23 gradually decreases from the top to the bottom. A mesh plate 24 is also fixed to the bottom of the pouring barrel 23. The outer wall of the straight cylindrical portion 21 and the top of each pouring barrel 23 are provided with a mesh plate 24. A pair of vibration motors a25 are symmetrically provided at the connection points; the double-conical cylinder portion 22 is composed of two inverted conical cylinders 26, the tops of the two inverted conical cylinders 26 are connected to form a whole and connected to the straight cylinder portion 21, and the bottom of each conical cylinder 26 is connected to a quicklime particle discharge pipe 27 with a discharge valve. A screw conveyor 28 is provided below the double-conical cylinder portion 22, and 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 lime particle discharge pipes 27 at the bottom of the two conical cylinders 26 are connected to the pair of feed interfaces;
[0043] A quicklime pellet inlet pipe 33 connected to the discharge port 30 of the screw conveyor 28 is provided at the front end of the sealing cover plate 32. A plurality of water inlet mechanisms 34 and air extraction mechanisms 35 are alternately provided behind the quicklime pellet inlet pipe 33. The water inlet mechanism 34 includes a cylindrical portion 36 extending through the sealing cover plate 32, a sealing top plate 37 provided on the top of the cylindrical portion 36, and a nozzle head provided at the bottom of the cylindrical portion 36. A water inlet branch pipe 38 is connected to the sealing top plate 37, the end of which 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 provided on the top of the air extraction branch pipe 41, the end of which is connected to the air extraction main pipe 42. A slaked lime discharge port 43 with a discharge valve is provided at the tail end of the horizontal twin-shaft mixer 31.
[0044] The drying shell 51 is a spindle-shaped structure. A slaked lime material inlet 53 is provided at the top of the drying shell 51, and a slaked lime drying material outlet 54 is provided at the bottom. A slaked lime conveyor belt is provided below the slaked lime discharge port 43. The discharge end of the slaked lime conveyor belt is located directly above the slaked lime material inlet 53. A hot air exhaust pipe 55 is connected to the side wall of the slaked lime material inlet 53. The drying shell 51 is divided into an inner shell layer 56 and an outer shell layer 57. A semicircular tube structure heat transfer medium coil 58 is welded to the outer wall of the inner shell layer 56. The heat transfer medium coil 58 is evenly laid from one side to the other side of the drying shell 51. The gap between the inner shell layer 56 and the outer shell layer 57, except for the heat transfer medium coil 58, is filled with thermal insulation asbestos 59. The slaked lime stirring mechanism includes a rotating shaft 60 connected to the coupling and a slaked lime stirring rod group provided on the rotating shaft 60. The slaked lime stirring rod group includes a pair of middle stirring rods a61 and multiple pairs of side stirring rods b62 symmetrically distributed on both sides thereof.
[0045] In another technical solution, the mesh plate 24 is a circular plate, the edge of which is fixedly connected to the bottom edge of the pouring barrel 23. The mesh holes in the mesh plate 24 are square, with a mesh size of no less than 150 mm x 150 mm. There are three material guides, located at the top, middle, and bottom of the straight cylindrical portion 21, respectively. The top edge of the pouring barrel 23 is fixedly connected to the inner wall of the straight cylindrical portion 21.
[0046] In another technical solution, a pair of vibration motors b29 are symmetrically provided on the outer wall of the double-conical cylinder 22.
[0047] In another technical solution, the upper crushing chamber 4 is located obliquely above the lower crushing chamber 5, and one side of the lower part of the upper crushing chamber 4 is connected to the other side 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 drive motors 8 arranged on both sides of the support frame 1, and the inner walls of the upper crushing chamber 4 and the lower crushing chamber 5 are provided with high-strength alloy liners.
[0048] In another technical solution, the surface plate a16 and the bottom plate b17 are provided with interpenetrating holes to form the sieve holes 15. The length of the reinforcing connecting strip 14 is the same as that of the vertical strip 1. A dust filter is bonded to the connection between the exhaust hood 40 and the exhaust branch pipe 41.
[0049] In another technical solution, the upper part of the cylindrical portion 36 is located above the sealing cover plate 32, and the lower part of the cylindrical portion 36 is located in the mixing chamber of the horizontal twin-shaft mixer 31 below the sealing cover plate 32. The bottom of the cylindrical portion 36 is provided with an external threaded portion 150, and the nozzle head is a cover 152 with an internal threaded portion 151 adapted to the external threaded portion 150, and a plurality of water outlet holes 153 are evenly provided on the cover 152.
[0050] In another technical solution, the edge of the sealing cover plate 32 is provided with a plurality of mounting screw holes, the top of the shell of the horizontal twin-shaft mixer 31 is provided with fixing screw holes that are compatible with the mounting screw holes, and a rubber sealing gasket with screw through holes is also provided under the sealing cover plate 32. A plurality of screws pass through the mounting screw holes and the screw through holes in turn and are connected to the fixing screw holes.
[0051] In another technical solution, the number of the water inlet mechanisms 34 and the air extraction mechanisms 35 are both four, and are evenly distributed on the top of the sealing cover plate 32 .
[0052] In another technical solution, the medium inlet pipe 63 of the heat transfer medium coil 58 is located on one side of the drying shell 51, and the medium outlet pipe 64 is located on the other side of the drying shell 51. The medium inlet pipe 63 and the medium outlet pipe 64 pass through the shell outer layer 57 and are connected to the medium circulation pipeline. The medium circulation pipeline is equipped with a heat transfer medium circulation heating device. The heat transfer medium circulation heating device is a thermal oil circulation heating device.
[0053] In another technical solution, the ends of a pair of middle stirring rods a61 are fixedly connected to horizontal stirring blocks a65, the number of the multiple pairs of side stirring rods b62 is two pairs, and the ends of the side stirring rods b62 are fixedly connected to inclined stirring blocks b66.
[0054] In another technical solution, the hot gas exhaust pipe 55 is connected to the air pump through an air extraction pipe. The inner layer 56 of the shell is made of high thermal conductivity alloy steel, and the heat conducting medium coil 58 is an aluminum tube or a copper tube.
[0055] Working method: The quicklime lumps obtained after limestone is burned are added to the upper crushing chamber 4 of the crusher 2 through the quicklime lumps inlet 6. After primary crushing by the hammer assembly of the upper crushing chamber 4, they enter the lower crushing chamber 5 through the upper screen plate 10. After being crushed again by the hammer assembly of the lower crushing chamber 5, the particle size is further reduced. They are discharged to the quicklime crushing conveyor belt through the lower screen plate 11 of the lower crushing chamber 5 and the quicklime crushing outlet 7.
[0056] The crushed quicklime particles from the quicklime crushing conveyor belt enter through the quicklime particle inlet at the top of silo 20 and are temporarily stored there. When digestion is required, the discharge valve is opened, and vibration motors a25 and b29, along with screw conveyor 28, are activated to rapidly discharge the quicklime particles. The pouring barrel 23, coupled with the mesh plate 24 at its bottom, rapidly guides the quicklime particles downward under the vibration of vibration motor a. These particles are then delivered to screw conveyor 28 via two inverted conical barrels 26 and vibration motor b.
[0057] The crushed quicklime particles are fed from the discharge port 30 of the screw conveyor 28 into the mixing chamber of the horizontal twin-shaft mixer 31 through the lime particle inlet pipe 33 at the front end of the sealing cover plate 32. The particles are then sprayed with water and the hot air is extracted through multiple water inlet mechanisms 34 and air extraction mechanisms 35. The particles are stirred and digested by the twin-screw stirring shafts in the horizontal twin-shaft mixer 31. After digestion is completed, the slaked lime is discharged to the slaked lime conveyor belt through the slaked lime discharge port 43 with a discharge valve.
[0058] The slaked lime conveyor belt feeds the digested slaked lime material through the slaked lime material inlet 53 at the top of the drying housing 51. The slaked lime material inlet 53 is then closed, and the drive motor is started to drive the slaked lime stirring mechanism in the drying housing 51 to stir the slaked lime. At the same time, the housing inner layer 56 is heated by the heat transfer medium coil 58 to heat and dry the slaked lime material. During the drying process, the hot air generated by the heating can be removed through the hot air exhaust pipe 55 and the exhaust pipe connected to the exhaust pump. After drying is completed, the discharge valve of the slaked lime drying material outlet 54 is opened to discharge the dried slaked lime material.
[0059] The above implementation cases are only for illustrating the technical solutions and features of the utility model, and their purpose is to enable people familiar with the technology to implement them better. They cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model are within the scope of protection of the utility model. Those not described in detail are prior art.
Claims
1. A slaked lime production and preparation system, comprising a quicklime crushing device (100), a quicklime silo (101), a quicklime digestion device (102), and a slaked lime drying device (103) arranged in sequence; the quicklime crushing device comprises a support frame (1) and a crusher (2) arranged thereon, the crusher (2) comprising a crushing shell (3) and an upper crushing chamber (4) and a lower crushing chamber (5) arranged therein and communicating with each other, the top of the crushing shell (3) being provided with a quicklime block material inlet (6), the bottom of the crushing shell (3) being provided with a quicklime crushed material outlet (7); the quicklime silo (101) comprising a support frame (1) and a crusher (2) arranged thereon, the crusher (2) comprising a crushing shell (3) and an upper crushing chamber (4) and a lower crushing chamber (5) arranged therein and communicating with each other, the top of the crushing shell (3) being provided with a quicklime block material inlet (6), the bottom of the crushing shell (3) being provided with a quicklime crushed material outlet (7); The invention relates to a silo (20), wherein a quicklime granular material feeding port is provided on the top of the silo (20), and a plurality of mounting ears are provided on the side wall of the silo (20); the quicklime digestion device (102) comprises a horizontal double-shaft mixer (31), and a sealing cover (32) is provided on the top of the horizontal double-shaft mixer (31); the slaked lime drying device (103) comprises a bottom bracket (50) and a drying shell (51) mounted thereon, a driving motor a (52) is provided on one side of the drying shell (51), and the output shaft of the driving motor is connected to the slaked lime stirring mechanism provided in the drying shell (51) through a coupling, wherein: The quicklime block material inlet (6) is connected to the upper crushing chamber (4), and the quicklime crushed material outlet (7) is connected to the bottom of the lower crushing chamber (5). The upper crushing chamber (4) and the lower crushing chamber (5) are both provided with a hammer assembly; an upper screen plate (10) is provided at the connection between the upper crushing chamber (4) and the lower crushing chamber (5), and a lower screen plate (11) is provided at the connection between the lower crushing chamber (5) and the quicklime crushed material outlet (7); the upper screen plate (10) is a rectangular plate structure, which includes a plurality of integrally formed horizontal strips (12) and a plurality of horizontal strips (11) located thereon. A pair of vertical strips (13) at both ends, and a group of reinforcing connecting strips (14) are arranged at intervals at the bottom of the plurality of horizontal strips (12), and the reinforcing connecting strips (14) are arranged parallel to the vertical strips (13); the lower sieve plate (11) is an arc-shaped plate structure, and a plurality of sieve holes (15) are evenly arranged on the lower sieve plate (11), and the lower sieve plate (11) includes a surface plate a (16) and a bottom plate b (17), the surface plate a (16) is made of high manganese alloy steel, and the bottom plate b (17) is made of high chromium cast iron hard alloy; A quicklime crushing material conveyor belt is provided below the quicklime crushing material outlet (7) at the bottom of the crushing shell (3), and the discharge end of the quicklime crushing material conveyor belt is located just above the quicklime granular material feed port. The silo (20) includes a straight cylinder (21) and a double-conical cylinder (22) connected to the bottom thereof. The inner wall of the straight cylinder (21) is provided with a plurality of material guide mechanisms from top to bottom. Each material guide mechanism includes a pouring cylinder (23) fixed to the inner wall of the straight cylinder (21). The diameter of the pouring cylinder (23) gradually decreases from the top to the bottom. A mesh plate (24) is also fixed to the bottom of the pouring cylinder (23). The outer wall of the straight cylinder (21) and the top of each pouring cylinder (23) are connected to the mesh plate (24). A pair of vibration motors a (25) are symmetrically provided at the joints; the double-cone cylinder portion (22) is composed of two inverted conical cylinders (26), the tops of the two inverted conical cylinders (26) are connected to form a whole and connected to the straight cylinder portion (21), the bottom of each conical cylinder (26) is connected to a quicklime particle material discharge pipe (27) with a discharge valve, a screw conveyor (28) is provided below the double-cone cylinder portion (22), one end of the screw conveyor (28) is provided with a pair of feed interfaces, the other end of the screw conveyor (28) is provided with a discharge port (30), and the lime particle material discharge pipes (27) at the bottom of the two conical cylinders (26) are connected to the pair of feed interfaces; 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), and the rear of the quicklime granular material inlet pipe (33) is alternately provided with a plurality of water inlet mechanisms (34) and air extraction mechanisms (35); the water inlet mechanism (34) comprises a cylindrical portion (36) provided through the sealing cover plate (32), a sealing top plate (37) provided on the top of the cylindrical portion (36), and a sealing top plate (37) provided on the cylindrical portion (36). ) at the bottom of the spray head, 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 exhaust mechanism (35) includes an exhaust hood (40) connected to the sealing cover plate (32) and an exhaust branch pipe (41) arranged on the top thereof, and the end of the exhaust branch pipe (41) is connected to the exhaust main pipe (42); the tail end of the horizontal twin-shaft mixer (31) is provided with a slaked lime discharge port (43) with a discharge valve; The drying shell (51) is a spindle-shaped structure. The top of the drying shell (51) is provided with a slaked lime material inlet (53), the bottom is provided with a slaked lime drying material outlet (54), and a slaked lime conveyor belt is provided below the slaked lime discharge port (43). The discharge end of the slaked lime conveyor belt is located just above the slaked lime material inlet (53). A hot air discharge pipe (55) is connected to the side wall of the slaked lime material inlet (53). The drying shell (51) is divided into a shell inner layer (56) and a shell outer layer (57). A semicircular tube structure guide is welded on the outer wall of the shell inner layer (56). The heat medium coil (58) and the heat conducting medium coil (58) are evenly laid from one side to the other side of the drying shell (51); the gap between the shell inner layer (56) and the shell outer layer (57), except for the heat conducting medium coil (58), is filled with thermal insulation asbestos (59); the slaked lime stirring mechanism includes a rotating shaft (60) connected to the coupling and a slaked lime stirring rod group arranged on the rotating shaft (60); the slaked lime stirring rod group includes a pair of middle stirring rods a (61) and multiple pairs of side stirring rods b (62) symmetrically distributed on both sides thereof.
2. A slaked lime production and preparation system 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 pouring barrel (23), the mesh holes on the grid plate (24) are square mesh holes, and the mesh size is not less than 150mm×150mm.
3. A slaked lime production and preparation system according to claim 1, characterized in that: A pair of vibration motors b (29) are symmetrically arranged on the outer wall of the double-cone cylindrical portion (22).
4. A slaked lime production and preparation system according to claim 1, characterized in that: The upper crushing chamber (4) is located obliquely above the lower crushing chamber (5), and one side of the lower portion of the upper crushing chamber (4) is connected to the other side of the upper portion 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 drive motors b (8) arranged on both sides of the support frame (1). High-strength alloy lining plates are provided on the inner walls of the upper crushing chamber (4) and the lower crushing chamber (5).
5. A slaked lime production and preparation system according to claim 1, characterized in that: The surface plate a (16) and the bottom plate b (17) are provided with interconnected holes to form the sieve holes (15).
6. A slaked lime production and preparation system according to claim 1, characterized in that: The upper portion of the cylindrical portion (36) is located above the sealing cover plate (32), and the lower portion of the cylindrical portion (36) is located in the stirring chamber of the horizontal double-shaft mixer (31) below the sealing cover plate (32). The bottom of the cylindrical portion (36) is provided with an external threaded portion (150). The nozzle head is a sealing cover (152) with an internal threaded portion (151) adapted to the external threaded portion (150), and a plurality of water outlet holes (153) are evenly arranged on the sealing cover (152).
7. A slaked lime production and preparation system according to claim 1, characterized in that: The edge of the sealing cover plate (32) is provided with a plurality of mounting screw holes, the top of the housing of the horizontal twin-shaft mixer (31) is provided with fixing screw holes that are compatible with the mounting screw holes, and a rubber sealing pad with screw through holes is also provided below the sealing cover plate (32), and a plurality of screws are sequentially passed through the mounting screw holes and the screw through holes to be connected with the fixing screw holes.
8. A slaked lime production and preparation system according to claim 1, characterized in that: The number of the water inlet mechanism (34) and the air extraction mechanism (35) are both four, and they are evenly distributed on the top of the sealing cover plate (32).
9. A slaked lime production and preparation system according to claim 1, characterized in that: The medium inlet pipe (63) of the heat-conducting medium coil (58) is located on one side of the drying shell (51), and the medium outlet pipe (64) is located on the other side of the drying shell (51). The medium inlet pipe (63) and the medium outlet pipe (64) penetrate the outer layer (57) of the shell and are connected to the medium circulation pipeline. The medium circulation pipeline is provided with a heat-conducting medium circulation heating device.
10. A slaked lime production and preparation system according to claim 1, characterized in that: The ends of a pair of middle stirring rods a (61) are fixedly connected to a horizontal stirring block a (65), and the number of the multiple pairs of side stirring rods b (62) is two pairs, and the ends of the side stirring rods b (62) are fixedly connected to an inclined stirring block b (66).