Device integrating quicklime grading and passivator adding

Abstract

The utility model provides a device integrating quicklime grading and passivating agent adding, which comprises a case, a feed hopper arranged at the top of the case, a crushing cavity arranged below the feed hopper in the case, a crushing rotating shaft rotatably mounted in the crushing cavity, and a plurality of crushing blades equidistantly arranged on the crushing rotating shaft, a first screen is arranged below the crushing rotating shaft, multiple pairs of grinding rollers are rotatably installed below the first screen at equal intervals, a passivator storage cavity is formed in the bottom in the machine box, two stirring and collecting cavities are formed in the two sides of the passivator storage cavity, a second screen is arranged at the tops of the stirring and collecting cavities, and stirring frames are arranged in the stirring and collecting cavities; and a passivating agent conveying pump is arranged in the passivating agent storage cavity, and an outlet of the passivating agent conveying pump communicates with the two stirring and collecting cavities through conveying pipes. The quick lime grading screening and passivating agent adding device is scientific and reasonable in structural design, capable of integrating quick lime grading screening and passivating agent adding, capable of simplifying the production process, easy to operate, high in production efficiency and capable of being used and popularized.

Description

Technical Field

[0001] This utility model relates to a chemical equipment, specifically a device that integrates graded quicklime and the addition of passivating agents. Background Technology

[0002] In industrial production, quicklime (calcium oxide) plays a crucial role as a chemical raw material, widely used in industries such as steel, chemicals, and construction. However, quicklime exhibits strong corrosiveness and reactivity, and its typical hygroscopic properties during storage and transportation hinder its stability, severely impacting its effectiveness and leading to a series of production safety issues. The introduction of passivating agents can solve these problems related to moisture prevention, hydrophobicity, and stability during the use of quicklime, enhancing its stability during storage and transportation, and improving its safety during use.

[0003] In traditional quicklime processing, quicklime grading and passivating agent addition are usually performed separately. This separate process presents several problems, such as inconsistent raw material particle size requirements, uneven passivating agent addition, and inappropriate proportions. Furthermore, substandard raw materials are difficult to effectively recover and process in traditional processes, leading to increased costs and reduced product yield. These issues limit production efficiency and product quality improvement, and increase equipment complexity and operational difficulty. Therefore, a more practical quicklime grading and passivation device that can effectively improve production efficiency is needed to address these problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device that integrates the grading and screening of quicklime and the addition of passivating agent, which addresses the shortcomings of the prior art. The device has a scientific and reasonable design that integrates the grading and screening of quicklime with the addition of passivating agent, simplifies the production process, effectively recovers unqualified raw materials to reduce waste, is easy to operate, has high production efficiency, and can be widely used.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a device integrating the grading of quicklime and the addition of passivating agents, characterized in that it includes a casing, a feed hopper is provided at the top of the casing, a crushing chamber is provided inside the casing below the feed hopper, a crushing shaft is rotatably installed in the crushing chamber, a plurality of crushing blades are equidistantly arranged on the crushing shaft, a crushing motor for driving the crushing shaft is provided on the casing, a first screen is provided below the crushing shaft, a plurality of pairs of grinding rollers are rotatably installed equidistantly below the first screen, and a device for... A grinding motor drives multiple pairs of grinding rollers to rotate. Two diversion ports are symmetrically arranged on both sides of the bottom of the machine housing. A passivating agent storage chamber is set at the bottom of the machine housing. Two stirring and collecting chambers are set on both sides of the passivating agent storage chamber. A second screen is set on the top of the stirring and collecting chamber and is located below the grinding rollers. A stirring frame is set inside the stirring and collecting chamber. A stirring motor that drives the stirring frame to rotate is set on the outer wall of the stirring and collecting chamber. A passivating agent delivery pump is set inside the passivating agent storage chamber. The outlet of the passivating agent delivery pump is connected to the two stirring and collecting chambers through a delivery pipe.

[0006] Preferably, a support plate is provided at the top of the passivating agent storage chamber, and two electric telescopic cylinders are symmetrically arranged on both sides of the support plate. The telescopic end of the electric telescopic cylinder is fixedly connected to a push plate. The push plate is set on the top surface of the second screen. A vibration motor is fixedly installed on the second screen, and a diversion cap is provided at the top of the support plate.

[0007] Preferably, multiple grinding motors are provided, each grinding motor drives a pair of grinding rollers to rotate, and a flow-diverting baffle is provided inside the machine housing above two adjacent pairs of grinding rollers to prevent material from entering the gap between the opposing upward-rotating grinding rollers and affecting the grinding efficiency.

[0008] Preferably, guide plates for guiding materials are symmetrically arranged on both sides of the lower end of the first screen, and the aperture of the first screen is larger than that of the second screen.

[0009] Preferably, a weight sensor is provided at the bottom of the stirring and collecting chamber. The amount of passivating agent added is controlled according to the weight of quicklime collected in the stirring and collecting chamber, thereby improving the yield.

[0010] Preferably, the pushing direction of the pusher plate is close to the diversion port, and the top of the second screen is connected to the diversion port. Large-diameter quicklime particles that are intercepted by the second screen are pushed into the diversion port by the pusher plate and discharged.

[0011] Preferably, the second screen is detachably connected to the top of the mixing and collecting chamber, and the screening aperture can be adjusted to meet the grading requirements of different particle sizes. A door is provided on the casing for easy replacement of the second screen and maintenance of all components.

[0012] This utility model has the following advantages compared with the prior art:

[0013] This invention integrates the crushing, grading, grinding, and uniform addition of passivating agent to quicklime into a single system. Through this integrated design, it achieves efficient processing of raw materials with different particle sizes and precise addition of passivating agent. This device not only effectively recovers substandard raw materials and reduces waste, but also simplifies equipment structure, reduces operational difficulty, and improves production efficiency and product qualification rate. Its integrated and automated design facilitates rapid production deployment and contributes to ease of operation and production stability.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] Detailed Implementation

[0018] like Figure 1 As shown, this utility model includes a casing 1, a feed hopper 2 at the top of the casing 1, a crushing chamber located below the feed hopper 2 inside the casing 1, a crushing shaft 3 rotatably mounted inside the crushing chamber, a plurality of crushing blades 4 evenly spaced on the crushing shaft 3, a crushing motor 5 for driving the crushing shaft 3 to rotate on the casing 1, a first screen 6 below the crushing shaft 3, three pairs of six grinding rollers 8 rotatably mounted evenly spaced below the first screen 6, a grinding motor for driving the three pairs of grinding rollers 8 to rotate on the casing 1, and symmetrical bottom sides of the casing 1. The machine is equipped with two diversion ports 10. A passivating agent storage chamber 12 is provided at the bottom of the machine housing 1. Two stirring and collecting chambers 14 are provided on both sides of the passivating agent storage chamber 12. A second screen 9 is provided at the top of the stirring and collecting chamber 14 and is located below the grinding roller 8. A stirring frame 15 is provided inside the stirring and collecting chamber 14. A stirring motor 16 for driving the stirring frame 15 to rotate is provided on the outer wall of the stirring and collecting chamber 14. A passivating agent delivery pump 13 is provided inside the passivating agent storage chamber 12. The outlet of the passivating agent delivery pump 13 is connected to the two stirring and collecting chambers 14 through a delivery pipe.

[0019] In this embodiment, a support plate 17 is provided on the top of the passivating agent storage cavity 12, and two electric telescopic cylinders 11 are symmetrically arranged on both sides of the support plate 17. The telescopic end of the electric telescopic cylinder 11 is fixedly connected to a push plate 18. The push plate 18 is arranged on the top surface of the second screen 9, and a gap is left between the push plate 18 and the top surface of the second screen 9 to avoid the vibration of the second screen 9 affecting the push plate 18 and the electric telescopic cylinder 11. A vibration motor 19 is fixedly installed on the second screen 9, and a conical diverter cap 20 is provided on the top of the support plate 17.

[0020] In this embodiment, three grinding motors are provided, each driving a pair of grinding rollers 8 to rotate. The output shaft of the grinding motor is coaxially fixedly connected to one of the grinding rollers 8 in the pair. The two grinding rollers 8 in the same pair are driven by gear meshing. The grinding rollers 8 in the same pair rotate downwards in opposite directions, while the grinding rollers 8 between the first pair and the second pair, and between the second pair and the third pair, rotate upwards in opposite directions. An inclined downward diversion baffle 21 is provided above the grinding rollers 8 between the first pair and the second pair, and between the second pair and the third pair, inside the housing 1. The diversion baffle 21 is located below the first screen 6 and guides the material between the grinding rollers 8 rotating downwards in opposite directions. A gap is left between the diversion baffle 21 and the grinding rollers 8.

[0021] In this embodiment, guide plates 7 for guiding materials are symmetrically arranged on both sides of the lower end of the first screen 6, and the aperture of the first screen 6 is larger than that of the second screen 9.

[0022] In this embodiment, a weight sensor is installed at the bottom of the stirring and collecting chamber 14. The amount of passivating agent added is controlled based on the weight of quicklime collected in the stirring and collecting chamber 14, thereby improving the yield. A finished product discharge port is provided at the bottom of the stirring and collecting chamber 14.

[0023] In this embodiment, the pushing direction of the pusher plate 18 is close to the diversion port 10, and the top of the second screen 9 is connected to the diversion port 10. Large-diameter quicklime particles that are secondary screened and intercepted by the second screen 9 are pushed into the diversion port 10 by the pusher plate 18 and discharged. Large-diameter unqualified quicklime particles can be re-input into the feed hopper 2 from the discharge port 10 for secondary crushing and grinding, thereby improving utilization.

[0024] In this embodiment, the second screen 9 is detachably connected to the top of the stirring and collecting chamber 14, and the screening aperture can be adjusted to meet the grading requirements of different particle sizes. A door is provided on the casing 1 for easy replacement of the second screen 9 and maintenance of various components.

[0025] In operation, quicklime raw material is fed into hopper 2 and initially crushed by crushing blades 4. The crushed quicklime undergoes preliminary screening through a first screen 6, separating larger and smaller particles. Larger lime lumps continue to be crushed and cut until they pass through the first screen 6. Smaller particles, after passing through the first screen 6, fall between opposing downward-rotating grinding rollers 8, where they are squeezed and ground before falling into a second screen 9. A vibrating motor 19 vibrates the quicklime, causing the qualified particles to pass through the second screen 9 and enter the mixing and collecting chamber 14. An electric telescopic cylinder 11 pushes a pusher plate 18 to push unqualified large-diameter quicklime particles into the diversion port 10, achieving quicklime grading. Qualified quicklime particles enter the mixing and collecting chamber 14. A weight sensor detects the weight of the quicklime, and a passivating agent delivery pump 13 controls the amount of passivating agent added, spraying it onto the quicklime for passivation treatment, ensuring accurate addition ratios. Unqualified quicklime particles are collected in a recovery bin and returned to hopper 2 for secondary crushing, improving raw material utilization. After the passivating agent has been added, the quicklime is stirred and then discharged from the finished product outlet for further processing or packaging.

[0026] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A device integrating graded quicklime and passivating agent addition, characterized in that, The system includes a casing (1), a feed hopper (2) on the top of the casing (1), a crushing chamber located below the feed hopper (2) inside the casing (1), a crushing shaft (3) rotatably mounted inside the crushing chamber, multiple crushing blades (4) equidistantly arranged on the crushing shaft (3), a crushing motor (5) for driving the crushing shaft (3) to rotate on the casing (1), a first screen (6) below the crushing shaft (3), multiple pairs of grinding rollers (8) rotatably mounted equidistantly below the first screen (6), a grinding motor for driving the multiple pairs of grinding rollers (8) to rotate on the casing (1), and two symmetrically arranged sub-grinding rollers on both sides of the bottom of the casing (1). The outlet (10) is provided with a passivating agent storage chamber (12) at the bottom of the casing (1). Two stirring and collecting chambers (14) are provided on both sides of the passivating agent storage chamber (12). A second screen (9) is provided on the top of the stirring and collecting chamber (14). The second screen (9) is located below the grinding roller (8). A stirring frame (15) is provided in the stirring and collecting chamber (14). A stirring motor (16) for driving the stirring frame (15) to rotate is provided on the outer wall of the stirring and collecting chamber (14). A passivating agent delivery pump (13) is provided in the passivating agent storage chamber (12). The outlet of the passivating agent delivery pump (13) is connected to the two stirring and collecting chambers (14) through a delivery pipe.

2. The device for integrating graded quicklime and passivating agent addition according to claim 1, characterized in that, The passivating agent storage chamber (12) is provided with a support plate (17) at the top. Two electric telescopic cylinders (11) are symmetrically arranged on both sides of the support plate (17). The telescopic end of the electric telescopic cylinder (11) is fixedly connected to a push plate (18). The push plate (18) is set on the top surface of the second screen (9). A vibration motor (19) is fixedly installed on the second screen (9). A diversion cap (20) is provided on the top of the support plate (17).

3. The device for integrating graded quicklime and passivating agent addition according to claim 1, characterized in that, The grinding motor is provided in multiple ways, and each grinding motor drives a pair of grinding rollers (8) to rotate. A flow divider (21) is provided in the housing (1) above two adjacent pairs of grinding rollers (8).

4. The device for integrating graded quicklime and passivating agent addition according to claim 1, characterized in that, The first screen (6) has guide plates (7) symmetrically arranged on both sides of its lower end for guiding the material. The aperture of the first screen (6) is larger than that of the second screen (9).

5. The device for integrating graded quicklime and passivating agent addition according to claim 1, characterized in that, A weight sensor is provided at the bottom of the stirring and collecting chamber (14).

6. The device for integrating graded quicklime and passivating agent addition according to claim 2, characterized in that, The pushing direction of the pusher plate (18) is close to the diversion port (10), and the top of the second screen (9) is connected to the diversion port (10).

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