Intelligent activation and calcination equipment for coal gangue suspension preheating kiln

Abstract

The utility model discloses coal gangue suspension preheating kiln activation calcination intelligent equipment which comprises a suspension preheater, the suspension preheater is formed by combining a plurality of cyclones, the cyclones are sequentially distributed from top to bottom, and one of the cyclones is fixedly communicated with a raw material barrel; the quantity control unit and the screening unit are both arranged in the raw material barrel, the quantity control unit is used for controlling feeding of the coal gangue raw materials and matched with the screening unit, and the screening unit is used for blocking the coal gangue raw materials with the large particle size. The coal gangue feeding amount is uniform and the particle size is consistent in the suspension preheater, so that the coal gangue is in full and uniform contact with hot air flow in the suspension preheater, the heat exchange efficiency is improved, good preheating is provided for calcination, the stability and the uniformity of product quality are ensured, meanwhile, the abrasion of equipment is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of coal gangue suspension calcination, and in particular to an intelligent device for coal gangue suspension preheating kiln activation calcination. Background Technology

[0002] Coal gangue is a solid waste discharged during coal mining and washing. It is mainly composed of rock fragments, minerals and a small amount of carbonaceous matter. Its composition is complex, including clay minerals, quartz, pyrite, etc. It is mostly black, gray or brown in appearance and comes in blocky or powdery forms.

[0003] Activation and calcination of coal gangue in a suspension preheater allows the coal gangue to come into contact with hot air flow during calcination, which leads to phase transformation and structural reconstruction of the minerals and enhances their activity.

[0004] In existing technologies, the operation of suspension preheaters is closely related to the feed rate and raw material particle size. If the feed rate is too large, the material will become clogged in the suspension preheater and cannot be fully preheated. If the feed rate is too small, the production capacity of the suspension preheater will not be fully utilized, resulting in energy waste. Furthermore, if the raw material particles are too coarse, they will be difficult to suspend fully in the suspension preheater, reducing the heat exchange area and resulting in poor preheating effect. If the particles are too fine, they will be easily carried out of the suspension preheater by the airflow, resulting in raw material loss. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current intelligent equipment for activation and calcination of coal gangue suspension preheating kiln, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an intelligent device for the activation and calcination of coal gangue suspension preheating kiln, which aims to solve the problem that "the operation of the suspension preheater is closely related to the feed rate and the particle size of the raw material. When the feed rate is too large, the material will be blocked in the suspension preheater and cannot be fully preheated. When the feed rate is too small, the production capacity of the suspension preheater will not be fully utilized, resulting in energy waste. Furthermore, if the raw material particle size is too coarse, it is difficult to be fully suspended in the suspension preheater, which reduces the heat exchange area and results in poor preheating effect. If the particle size is too fine, it will be easily carried out of the suspension preheater by the airflow, resulting in raw material loss."

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0009] It includes a suspension preheater, which is composed of multiple cyclones arranged vertically, and a raw material cylinder is fixedly connected to one of the cyclones.

[0010] The feed control unit and the screening unit are both located inside the raw material cylinder. The feed control unit is used to control the feeding of coal gangue raw material and works in conjunction with the screening unit, while the screening unit is used to block coal gangue raw material with larger particle size.

[0011] The material guiding unit and the crushing unit are both located inside the raw material cylinder, with the crushing unit located inside the material guiding unit and working together to uniformly crush the particle size of the coal gangue raw material.

[0012] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, wherein: a material return component is provided on the raw material cylinder, and a connecting component is provided between the quantity control unit and the crushing unit.

[0013] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the control unit includes a rotating plate, which is rotatably connected to the inner walls of both sides of the raw material cylinder. The two sides of the rotating plate are arc-shaped and matched with the raw material cylinder. A servo motor is fixedly connected to one side of the raw material cylinder. The output end of the servo motor is fixedly connected to one side of the rotating plate. One end of the rotating plate moves through the raw material cylinder.

[0014] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the screening unit includes an inclined screen plate, which is fixedly connected to the inner wall of the raw material cylinder and located on the upper side of the rotating plate. Vibration blocks are hinged on both sides of the inclined screen plate near the rotating plate, and both vibration blocks cooperate with the rotating plate.

[0015] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the material return component includes a material return box, which is fixedly connected to the raw material cylinder. A material return pipe is fixedly connected to the material return box, and a material pump is fixedly connected to the other end of the material return pipe. The output end of the material pump is fixedly connected to an inlet pipe, which is fixedly connected to the raw material cylinder.

[0016] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the material guiding unit includes an inner arc block, which is fixedly connected to the inner wall of the raw material cylinder. The two sides of the inner arc block near the material pump are respectively set as inclined surfaces, and an inclined groove is opened on one side of the inner wall of the inner arc block.

[0017] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the crushing unit includes a crushing column, which is rotatably connected to the inner walls of both sides of the raw material cylinder, and one end of the crushing column moves through the raw material cylinder.

[0018] As a preferred embodiment of the intelligent equipment for activation and calcination of coal gangue suspension preheating kiln described in this utility model, the connecting component includes two rotating wheels, both of which are fixedly connected to one side of the rotating plate and crushing column, and the two rotating wheels are connected by belt drive.

[0019] The beneficial effects of this utility model are:

[0020] 1. By ensuring uniform feeding amount and consistent particle size of coal gangue in the suspension preheater, the coal gangue can fully and evenly contact the hot airflow within the suspension preheater, thereby improving heat exchange efficiency, providing good preheating for calcination, helping to ensure the stability and uniformity of product quality, while reducing equipment wear and extending equipment service life. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall front structure of an intelligent device for the activation and calcination of coal gangue in a suspension preheating kiln, as proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the raw material cylinder structure proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the raw material cylinder proposed in this utility model.

[0025] In the picture:

[0026] 100. Suspension preheater; 101. Raw material drum;

[0027] 1011. Material return assembly; 1012. Material return box; 1013. Material return pipe; 1014. Material pump;

[0028] 200. Control unit; 201. Rotating plate; 202. Servo motor;

[0029] 300. Screening unit; 301. Inclined screen plate; 302. Vibrating block;

[0030] 400. Material guiding unit; 401. Inner arc block; 402. Inclined groove;

[0031] 500. Crushing unit; 501. Crushing column;

[0032] 5001, Connecting component; 5002, Rotary wheel. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0036] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0037] Reference Figure 1-3 This utility model provides an intelligent device for the activation and calcination of coal gangue in a suspension preheating kiln, comprising:

[0038] It includes a suspension preheater 100, which is composed of multiple cyclones. The multiple cyclones are arranged in a vertical sequence, and a raw material cylinder 101 is fixedly connected to one of the cyclones.

[0039] The quantity control unit 200 and the screening unit 300 are both installed inside the raw material cylinder 101. The quantity control unit 200 is used to control the feeding of coal gangue raw material and cooperates with the screening unit 300. The screening unit 300 is used to block coal gangue raw material with larger particle size.

[0040] The feeding unit 400 and the crushing unit 500 are all arranged inside the raw material cylinder 101, and the crushing unit 500 is located inside the feeding unit 400. They cooperate with each other to crush and homogenize the particle size of the coal gangue raw material.

[0041] The raw material cylinder 101 is equipped with a material return component 1011, and a connecting component 5001 is provided between the quantity control unit 200 and the crushing unit 500.

[0042] Furthermore, the control unit 200 includes a rotating plate 201, which is rotatably connected to the inner walls of both sides of the raw material cylinder 101. The two sides of the rotating plate 201 are arc-shaped and matched with the raw material cylinder 101. A servo motor 202 is fixedly connected to one side of the raw material cylinder 101. The output end of the servo motor 202 is fixedly connected to one side of the rotating plate 201. One end of the rotating plate 201 moves through the raw material cylinder 101. The servo motor 202 drives the rotating plate 201 to rotate inside the raw material cylinder 101. The arc surfaces on both sides of the rotating plate 201 match the cylinder wall to ensure that the raw material cannot overflow downwards during rotation. When it separates from the inner wall of the raw material cylinder 101, the raw material is discharged. The raw material cylinder 101 is provided with a feed pipe and a discharge pipe to meet the feeding and discharging of the raw material.

[0043] Suspension preheaters are typically composed of multiple cyclones connected in series via connecting pipes. Raw materials enter from the upper cyclone and pass through each cyclone in sequence under the action of hot airflow, achieving gas-solid separation and step-by-step preheating. This allows the raw materials to reach a higher temperature before entering the kiln or decomposition furnace, improving production efficiency and representing the current technology.

[0044] Furthermore, the screening unit 300 includes an inclined screen plate 301, which is fixedly connected to the inner wall of the raw material cylinder 101 and located on the upper side of the rotating plate 201. Vibrating blocks 302 are hinged to both sides of the inclined screen plate 301 near the rotating plate 201. Both vibrating blocks 302 cooperate with the rotating plate 201. The rotating plate 201 intermittently contacts the vibrating blocks 302 on both sides of the inclined screen plate 301, causing the vibrating blocks 302 to vibrate, thereby causing the inclined screen plate 301 to vibrate and screen the raw material. The raw material with larger particle size is left on the screen plate for further processing, while the raw material with smaller particle size that meets the requirements falls through the inclined screen plate 301.

[0045] Furthermore, the material return assembly 1011 includes a material return box 1012, which is fixedly connected to the raw material cylinder 101. A material return pipe 1013 is fixedly connected to the material return box 1012, and a material pump 1014 is fixedly connected to the other end of the material return pipe 1013. A feed pipe is fixedly connected to the output end of the material pump 1014, and the feed pipe is fixedly connected to the raw material cylinder 101. The raw material is returned to the feed pipe by the material pump 1014 for secondary crushing, thereby improving the crushing effect of the raw material.

[0046] Furthermore, the material guiding unit 400 includes an inner arc block 401, which is fixedly connected to the inner wall of the raw material cylinder 101. The inner arc block 401 has inclined surfaces on both sides of the side near the material pump 1014. An inclined groove 402 is provided on one side of the inner wall of the inner arc block 401. The inner arc block 401 and the inclined groove 402 cooperate with each other to facilitate the discharge of raw material. The raw material first falls to the higher part of the inclined screen plate 301, which facilitates screening of the raw material as it gradually rolls down to the lower part.

[0047] Furthermore, the crushing unit 500 includes a crushing column 501, which is rotatably connected to the inner walls on both sides of the raw material cylinder 101. One end of the crushing column 501 moves through the raw material cylinder 101. Through the cooperation of the crushing column 501 and the inner arc block 401, the raw material is conveyed only through the paths between them, thus ensuring the crushing effect on the raw material.

[0048] Furthermore, the connecting assembly 5001 includes two rotating wheels 5002, both of which are fixedly connected to the rotating plate 201 and one side of the crushing column 501. The two rotating wheels 5002 are connected by belt drive, and the rotating wheels 5002 are used to achieve synchronous processing of the control unit 200 and the crushing unit 500.

[0049] During operation, raw coal gangue is fed into the raw material cylinder 101. The servo motor 202 drives the rotating plate 201 to rotate in contact with the raw material cylinder 101, controlling the amount of raw material fed. The rotating wheel 5002 drives the crushing column 501 to crush large particles in the raw material cylinder 101, making their particle size meet production requirements. The raw coal gangue then falls onto the inclined screen plate 301 through the inclined chute 402, intercepting larger particles. The intercepted raw material is intermittently touched by the rotating plate 201 to the vibrating block 302, causing the inclined screen plate 301 to vibrate. The raw material rolls down to a lower position and is then pumped back to the upper side of the crushing column 501 by the material pump 1014, undergoing secondary crushing. This equipment is connected to the internal circuitry via an external power supply to achieve automated processing and has an intelligent effect. This is existing technology and will not be elaborated on further in this article.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coal gangue suspension preheating kiln activation calcination intelligent device, characterized by: The application relates to a coal gangue slurry preparation device. The device comprises a suspension preheater (100) which is composed of multiple cyclone cylinders arranged in sequence in the up-down direction, and one of the cyclone cylinders is fixedly connected with a raw material cylinder (101); a quantity control unit (200) and a screening unit (300) are arranged in the raw material cylinder (101), the quantity control unit (200) is used for controlling the feeding of the coal gangue raw material, and cooperates with the screening unit (300); the screening unit (300) is used for blocking the coal gangue raw material with large particle size; a material guiding unit (400) and a crushing unit (500) are arranged in the raw material cylinder (101), the crushing unit (500) is arranged in the material guiding unit (400) and cooperates with the material guiding unit (400) to uniformly crush the particle size of the coal gangue raw material. The raw material cylinder (101) is provided with a material returning assembly (1011), and the quantity control unit (200) and the crushing unit (500) are jointly provided with a connecting assembly (5001). The quantity control unit (200) comprises a rotating plate (201) which is rotatably connected to the inner walls on the two sides of the raw material cylinder (101), the two side surfaces of the rotating plate (201) are arc-shaped, and the arc-shaped surfaces are matched with the raw material cylinder (101); one side surface of the raw material cylinder (101) is fixedly connected with a servo motor (202), the output end of the servo motor (202) is fixedly connected with one side of the rotating plate (201), and one end of the rotating plate (201) passes through the raw material cylinder (101) in a movable mode.

2. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 1, characterized in that: The screening unit (300) comprises an inclined sieve plate (301) which is fixedly connected to the inner wall of the raw material cylinder (101) and located above the rotating plate (201); two vibration blocks (302) are hingedly connected to the two sides of the side surface of the inclined sieve plate (301) which is close to the rotating plate (201), and the two vibration blocks (302) cooperate with the rotating plate (201).

3. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 2, characterized in that: The material returning assembly (1011) comprises a material returning box (1012) which is fixedly connected to the raw material cylinder (101); a material returning pipe (1013) is fixedly connected to the material returning box (1012); the other end of the material returning pipe (1013) is fixedly connected with a material pump (1014); the output end of the material pump (1014) is fixedly connected with a feeding pipe which is fixedly connected with the raw material cylinder (101).

4. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 3, characterized in that: The material guiding unit (400) comprises an inner arc block (401) which is fixedly connected to the inner wall of the raw material cylinder (101); the two sides of the side surface of the inner arc block (401) which is close to the material pump (1014) are inclined; and a slant groove (402) is formed in the side inner wall of the inner arc block (401).

5. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 4, characterized in that: The crushing unit (500) comprises a crushing column (501) which is rotatably connected to the inner walls on the two sides of the raw material cylinder (101), and one end of the crushing column (501) passes through the raw material cylinder (101) in a movable mode.

6. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 5, characterized in that: ​ 7. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 6, characterized in that: ​ 8. The coal gangue suspension preheating kiln activation calcination intelligent device according to claim 7, characterized in that: The connecting assembly (5001) comprises two rotating wheels (5002), which are fixedly connected to the rotating plate (201) and the side wall of the crushing column (501), and are connected through a belt drive between the two rotating wheels (5002).

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