A slaked lime recycling feeding device

Abstract

The present invention belongs to the technical field of dry recycling deacidification, and relates to a recycling feeding device for slaked lime, comprising a slaked lime tank, a rotary feeder arranged inside the slaked lime tank, and a screw conveyor for inputting materials into the slaked lime tank; the rotary feeder comprises a rotating cylinder rotatably arranged on the slaked lime tank, a first reduction motor arranged inside the rotating cylinder, and at least two rotating arms arranged on the rotating cylinder, and the rotating arms are staggered along the axial direction and circumferential direction of the rotating cylinder. The present invention is safe and reliable, energy-saving and environmentally friendly, and flexible and convenient to operate. The relative speed of the reduction motor can be set according to the circulation amount of slaked lime in the circulation system to ensure the balance of the crushing amount, the conveying amount, and the material amount, so as to achieve stable and continuous output of materials.

Description

Technical Field

[0001] The invention belongs to the technical field of dry recycling deacidification and relates to a slaked lime recycling feeding device. Background Art

[0002] At present, domestic waste incineration plants generally use semi-dry deacidification technology to remove acidic gases from flue gas. This deacidification method is to prepare quicklime into lime slurry solution through a lime slurry preparation system, and then pressurize it to a high-speed rotating atomizer through a water pump to evenly inject the atomized solution into the reaction tower to react with the flue gas flowing in the tower to remove the acidic gas. The atomization equipment used is expensive, and the unreacted part of the lime slurry after deacidification cannot be reused, resulting in high operating costs.

[0003] In dry recycling deacidification technology, the raw materials used to neutralize acidic gases are dry alkaline substances, and the products produced after neutralization are dry. This deacidification method uses the pressure energy of the fan to spray slaked lime powder into the flue at the outlet of the reaction tower, so that the slaked lime reacts with the acidic components in the flue gas flowing through the flue to neutralize and remove the acidic gases. This deacidification technology process does not produce wastewater, and the incompletely reacted lime can be reused. The equipment failure rate is low, and it can meet higher emission requirements, meet national environmental protection and energy-saving goals, and the equipment investment and operating costs are greatly reduced compared to semi-dry technology.

[0004] As the main equipment of dry recycling deacidification technology, the reliability, running stability and other comprehensive performance of slaked lime recycling feeding equipment directly determine the effect of the application of this technology. Therefore, it is of great significance to further improve the domestic domestic waste incineration flue gas treatment efficiency by designing a safe, reliable, energy-saving, environmentally friendly, and flexible and convenient slaked lime recycling feeding equipment. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a slaked lime recycling feeding device which is safe, reliable, energy-saving, environmentally friendly, and flexible and convenient to operate.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A slaked lime recycling feeding device comprises a slaked lime tank, a rotary feeder arranged inside the slaked lime tank, and a screw conveyor for inputting materials into the slaked lime tank; the rotary feeder comprises a rotary drum rotatably arranged on the slaked lime tank, a first reduction motor arranged inside the rotary drum, and at least two rotary arms arranged on the rotary drum, wherein the rotary arms are staggered along the axial direction and the circumferential direction of the rotary drum.

[0008] Optionally, the first reduction motor is provided with a connecting flange, which is connected to the rotating cylinder via an eccentric cam screw.

[0009] Optionally, the rotating arm is connected to the rotating cylinder through a plurality of fixing locking clips and matching screws.

[0010] Optionally, a first ear seat is provided on the rotating arm, a second ear seat is provided on the rotating cylinder, and a lifting chain is hung on the first ear seat and the second ear seat.

[0011] Optionally, a crushing shovel hook is provided on one end of the rotating arm away from the rotating cylinder.

[0012] Optionally, the screw conveyor includes a screw shaft, a stirring blade spirally arranged on the screw shaft, and a second reduction motor for driving the screw shaft to rotate.

[0013] Optionally, the second reduction motor is connected to the screw shaft via a sprocket chain transmission mechanism; the sprocket chain transmission mechanism includes a small sprocket connected to the second reduction motor and a large sprocket connected to the screw shaft, and the large sprocket is driven to rotate by the rotation of the small sprocket.

[0014] Optionally, the small sprocket is connected to the second reduction motor via a first flat key, and the large sprocket is connected to the spiral shaft via a second flat key.

[0015] Optionally, a protective cover is provided on the outer side of the sprocket chain transmission mechanism, a spiral shell is provided on the outer side of the spiral shaft, and the protective cover is connected to the spiral shell in the form of a threaded connection.

[0016] Optionally, the stirring blades are arranged on the spiral shaft in a variable pitch form, and the pitch gradually increases from the two ends to the middle.

[0017] The beneficial effects of the present invention are:

[0018] 1. The rotary feeder in the present invention is located inside the aging tank and is welded and fixed to the tank bottom of the aging tank by connecting the steel plate. The screw conveyor is located outside the aging tank and is connected to the bottom plate of the aging tank by bolt group connection. The rotary feeder rotates to crush the solidified lime, and the screw conveyor rotates to convey the material into the lime recycling system. The proportioning speed of the rotary feeder and the screw conveyor can be adjusted according to the amount of material to achieve continuous and stable circulation output of the material.

[0019] 2. The first rotating arm and the second rotating arm in the present invention are staggered up and down relative to the rotating cylinder, and are arranged symmetrically on the circumference, so that the material crushing performance is further improved.

[0020] 3. The rotating arm of the present invention is provided with a first ear seat, the rotating cylinder is provided with a second ear seat correspondingly connected thereto, and the two ends of the first lifting chain are respectively connected to the first ear seat and the second ear seat through shackles. The rotating arm has a tensioning force and can generate a certain elasticity. During operation, its elastic deformation ability can effectively avoid the occurrence of material jamming. The lifting chain ensures the relative position of the rotating arm and the maturation tank, ensuring that the installation gap meets the material breaking requirements.

[0021] 4. The rotating arm of the present invention is provided with a shovel hook, which can enhance the crushing performance of large pieces of materials.

[0022] 5. The core component for conveying materials in the present invention is the screw shaft. The stirring blades on the screw shaft adopt a variable pitch design, which has high conveying performance and effectively prevents the occurrence of material blocking.

[0023] 6. The reduction motors in the present invention all adopt variable frequency motors, and the relative speed of the two reduction motors can be set according to the circulation volume of slaked lime in the circulation system to ensure the balance of crushing volume, conveying volume and material volume, so as to achieve stable and continuous output of materials.

[0024] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 A three-dimensional diagram of the present invention;

[0027] Figure 2 It is the front view of the rotary feeder;

[0028] Figure 3 for Figure 2 AA section view;

[0029] Figure 4 for Figure 2 K-direction view;

[0030] Figure 5 This is the front view of the screw conveyor;

[0031] Figure 6 for Figure 5 BB cross-sectional view;

[0032] Figure 7 It is a top view of the screw conveyor;

[0033] Figure 8 for Figure 7 CC section view;

[0034] Fig. 9 This is the front view of the screw shaft. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which 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 operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] See also Figure 1-Figure 9, the component numbers in the accompanying drawings respectively represent: screw conveyor 1, rotary feeder 2, ripening tank 3, second rotary arm 4, first reducer 5, connecting flange 6, eccentric cam screw 7, first rotary arm 8, connecting steel plate 9, shovel hook 10, shackle 11, third ear seat 12, lifting chain 13, fourth ear seat 14, locking clamp 15, second ear seat 16, first ear seat 17, rotating cylinder 18, protective cover 19, screw group 20, second reduction motor 21, box cover 22, first bolt group 23, spiral housing 24, spiral shaft 25, second bolt group 26, third bolt group 27, sealing cover 28, small sprocket 29, first flat key 30, sprocket chain transmission mechanism 31, second flat key 32, large sprocket 33, discharge port 34, stirring blade 35.

[0039] The present invention relates to a slaked lime recycling feeding device, comprising a screw conveyor 1 and a rotary feeder 2. The rotary feeder 2 is located inside a slaked tank 3, and the screw conveyor 1 is located outside the slaked tank 3. The rotary feeder 2 rotates to crush the solidified lime, and the screw conveyor 1 rotates to convey the material into the slaked lime recycling system.

[0040] The rotary feeder 2 is composed of a rotating cylinder 18, a first rotating arm 8, a second rotating arm 4, and a first reduction motor 5. The connecting steel plate 9 on the first reduction motor 5 is welded and fixed to the bottom of the ripening tank 3. The first reduction motor 5 is provided with a connecting flange 6, which is connected to the rotating cylinder 18 through an eccentric cam screw 7. The first rotating arm 8 is fastened to the lower part of the rotating cylinder 18 by three fixed locking clamps 15. The second rotating arm 4 is fastened to the upper part of the rotating cylinder 18 by three fixed locking clamps 15. The first rotating arm 8 and the second rotating arm 4 are staggered up and down and arranged symmetrically around the circumference. The first rotating arm 8 is provided with an ear seat, and the rotating cylinder 18 is provided with an ear seat corresponding to the first rotating arm 8, and the two ends of the lifting chain 13 are respectively connected to the ear seat of the rotating cylinder 18 and the ear seat of the first rotating arm 8 through a shackle 11. The second rotating arm 4 is provided with an ear seat, and the rotating cylinder 18 is provided with an ear seat corresponding to the second rotating arm 4, and the two ends of the lifting chain 13 are respectively connected to the ear seat of the rotating cylinder 18 and the ear seat of the second rotating arm 4 through a shackle 11. The front ends of the first rotating arm 8 and the second rotating arm 4 are provided with a shovel hook 10, and there is a certain gap between the shovel hook 10 and the maturation tank 3. The first reduction motor 5 drives the rotating cylinder 18 to drive the rotating arm to rotate in the maturation tank 3 to achieve material crushing. The tension generated by the lifting chain 13 ensures that the rotating arm is always in a tensioned state during the operation process. When crushing materials, the rotating arm has a certain elasticity, which can effectively prevent the material from being stuck. The shovel hook 10 on the rotating arm strengthens the crushing effect on large pieces of material. The first reduction motor 5 adopts a variable frequency motor, and the speed of the first reduction motor 5 can be adjusted according to the amount of material to ensure continuous and stable output of materials.

[0041] The screw conveyor 1 includes a screw housing 24, a screw shaft 25, a second reduction motor 21, a sprocket chain transmission mechanism 31, a box cover 22, a sealing cover 28, a protective cover 19 and other components. Figure 4 . The slaked lime crushed by the rotary feeder 2 in the slaked tank 3 enters the screw conveyor 1, and the screw conveyor 1 drives the screw shaft 25 to rotate through the second reduction motor 21 to realize the transportation of materials. The slaked lime enters the circulation mechanism through the discharge port 34 at the tail end of the screw conveyor 1, and the deacidification reaction is circulated. The screw conveyor 1 and the bottom plate of the slaked tank 3 are connected by the second bolt group 26. The installation method of the sprocket chain transmission mechanism 31 is as follows: the small sprocket 29 is connected to the second reduction motor 21 through the first flat key 30, and the large sprocket 33 is connected to the screw shaft 25 through the second flat key 32. The protective cover 19 is located outside the sprocket chain transmission mechanism 31 and is connected to the spiral housing 24 in the form of a threaded connection. The box cover 22 and the spiral housing 24 are connected in the form of a first bolt group 23, and the sealing cover 28 and the spiral housing 24 are connected in the form of a third bolt group 27. The second reduction motor 21 adopts a variable frequency motor with adjustable speed, and its base is horizontally fixed on the spiral housing 24 in the form of a screw group connection. The variable pitch design of the spiral shaft 25 and the stirring blade 35 can effectively prevent material blockage and ensure smooth material output.

[0042] According to the material amount of slaked lime, the rotation speed of the rotary feeder 2 and the screw conveyor 1 can be adjusted, and the proportioning speed of the rotary feeder 2 and the screw conveyor 1 can be set, so that the material amount in the slaked bin and the conveying amount reach a balanced state, and the material circulation system operates stably.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A slaked lime recycling feeding device, characterized in that: It comprises a maturation tank, a rotary feeder arranged inside the maturation tank, and a screw conveyor for inputting materials into the maturation tank; The rotary feeder comprises a rotary drum rotatably arranged on the maturation tank, a first reduction motor arranged in the rotary drum, and at least two rotary arms arranged on the rotary drum, wherein the rotary arms are staggered along the axial direction and the circumferential direction of the rotary drum; the first reduction motor is provided with a connecting flange, which is connected to the rotary drum through an eccentric cam screw; the rotary arm is provided with a first ear seat, the rotary drum is provided with a second ear seat, and lifting chains are hung on the first ear seat and the second ear seat.

2. The slaked lime recycling feeding device as claimed in claim 1, characterized in that: The rotating arm is connected to the rotating cylinder through a plurality of fixing locking clips and screws.

3. The slaked lime recycling feeding device as claimed in claim 1, characterized in that: A crushing shovel hook is arranged on one end of the rotating arm away from the rotating cylinder.

4. The slaked lime recycling feeding device as claimed in claim 1, characterized in that: The screw conveyor includes a screw shaft, a stirring blade spirally arranged on the screw shaft, and a second reduction motor for driving the screw shaft to rotate.

5. The slaked lime recycling feeding device as claimed in claim 4, characterized in that: The second reduction motor is connected to the screw shaft through a sprocket chain transmission mechanism; the sprocket chain transmission mechanism includes a small sprocket connected to the second reduction motor and a large sprocket connected to the screw shaft, and the large sprocket is driven to rotate by the rotation of the small sprocket.

6. The slaked lime recycling feeding device as claimed in claim 5, characterized in that: The small sprocket is connected to the second reduction motor via a first flat key, and the large sprocket is connected to the spiral shaft via a second flat key.

7. The slaked lime recycling feeding device as claimed in claim 5, characterized in that: A protective cover is arranged on the outer side of the sprocket chain transmission mechanism, a spiral shell is arranged on the outer side of the spiral shaft, and the protective cover is connected to the spiral shell in the form of a threaded connection.

8. The slaked lime recycling feeding device as claimed in claim 4, characterized in that: The stirring blades are arranged on the spiral shaft in a variable pitch form, and the pitch gradually increases from the two ends to the middle.

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