Calcium carbide flue cleaning device

Abstract

The utility model provides a calcium carbide flue cleaning device which comprises a supporting frame installed above a flue, a reduction gearbox is installed above the supporting frame, and one side of the reduction gearbox is connected with a driving motor. A rotating rod in transmission connection with the reduction gearbox is arranged in the center of the flue, and a fixing frame for fixing the rotating rod is arranged at the bottom of the flue; a protrusion is arranged on one side of the rotating rod, a lifting sweeping mechanism is arranged in the rotating rod, and a through groove allowing the rotating rod and the protrusion to penetrate through is formed in the center position in the sweeping mechanism. The rotating rod is installed in the center of the flue, the rotating rod can conveniently drive the sweeping mechanism to sweep the inner wall of the flue in all directions, sweeping dead corners can be avoided, and the cleaning effect is improved; and meanwhile, the rotating rod is responsible for driving the sweeping box and the lifting box to rotate, the roller in the lifting box drives the sweeping box to move up and down, and the sweeping box and the lifting box cooperate with each other, so that the inner wall of the whole flue is cleaned, the inner wall of the flue cannot be collided and abraded, and the service life of the flue is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of flue cleaning technology, and in particular relates to a calcium carbide flue cleaning device. Background Technology

[0002] Currently, during normal production in a calcium carbide furnace, the main raw materials are coke and lime. When the raw materials react in the furnace, a large amount of gas is generated. The gas contains tar and other dust particles, which easily condense on the pipe walls. Prolonged condensation can lead to a decrease in the inner diameter of the pipes, an increase in the frequency of the blowers, and excessively high temperatures in the purification and filtration chambers. In severe cases, it can block the flue and prevent normal production.

[0003] The publication number CN212577060U describes a rapid cleaning tool for calcium carbide furnace flues. This tool uses a steel wire rope to raise and lower a weight within the flue to clean its interior. While effective, this method has several drawbacks: 1. To clean the flue, the diameter of the weight must match the flue's inner diameter. However, flues are susceptible to slight deformation due to temperature variations during normal use. Therefore, the weight cannot fully conform to the flue's inner wall during cleaning, resulting in incomplete cleaning. Furthermore, the weight's up-and-down movement can cause impact and wear to the flue's inner wall, shortening its lifespan. 2. The weight's size is not adjustable, making it difficult to adapt to flues with different inner diameters and lacking flexibility. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a calcium carbide flue cleaning device, and the technical solution adopted is as follows:

[0005] A calcium carbide flue cleaning device includes a support frame installed above the flue, a gearbox installed above the support frame, a drive motor connected to one side of the gearbox, a rotating rod connected to the gearbox in the center of the flue, and a fixing frame for fixing the rotating rod at the bottom of the flue.

[0006] A protrusion is provided on one side of the rotating rod, and a lifting and lowering cleaning mechanism is provided in the rotating rod. A through groove is provided in the center of the cleaning mechanism for the rotating rod and the protrusion to pass through.

[0007] The cleaning mechanism consists of a cleaning box and a lifting box, with a partition between them. A lower central column is located at the center of the cleaning box, and multiple scrapers are arranged in a ring within it. A first spring is installed between the central column and each scraper. An upper central column is located at the center above the partition, and multiple inclined telescopic cylinders are arranged in a ring within the lifting box. Rollers are installed at one end of each telescopic cylinder, and a second spring is installed between the other end of each cylinder and the upper central column. The springs in the cleaning mechanism ensure that the scrapers and rollers fit tightly against the inner wall of the flue. During cleaning, the scrapers effectively remove tar and dust. The rollers are positioned above the scrapers, preventing them from contacting the tar and dust on the inner wall of the flue when the cleaning box is raised or lowered, thus avoiding secondary pollution and ensuring effective flue cleaning.

[0008] Furthermore, a cover plate is provided above the lifting box to prevent dust from entering. After opening the cover plate, the springs inside the lifting box can be adjusted or replaced. By removing the bolts on the outside of the partition, the springs inside the sweeping box can be replaced. It is not necessary to disassemble the sweeping mechanism layer by layer, which simplifies the maintenance process and ensures that the rollers and scrapers are kept in optimal working condition.

[0009] Furthermore, multiple U-shaped grooves for installing scrapers are provided in the cleaning box. Below the partition, corresponding to the position of the scraper, there are downwardly extending protrusions. After the partition is installed, the lower surface of the protrusions slightly contacts the upper surface of the scraper, which maintains the mobility of the scraper while preventing the scraper from shaking up and down.

[0010] Furthermore, a lower scraper with an inverted conical structure is installed below the cleaning box. When the cleaning mechanism descends, it can scrape off the accumulated dust on the surface of the rotating rod, thereby improving the service life of the rotating rod.

[0011] Furthermore, a support plate for supporting the cleaning mechanism is movably installed in the support frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The rotating rod of this invention is installed in the center of the flue, which facilitates the rotating rod to drive the cleaning mechanism to clean the inner wall of the flue in all directions, avoiding the occurrence of cleaning dead corners and improving the cleaning effect. At the same time, the rotating rod is responsible for driving the rotation of the cleaning box and the lifting box. The rollers in the lifting box drive the cleaning box to move up and down. The two work together to achieve cleaning of the entire inner wall of the flue without causing collision and wear to the inner wall of the flue, thus extending the service life of the flue.

[0014] This invention utilizes the elastic action of the first and second springs to ensure that the scraper and roller maintain close contact with the inner wall of the flue at all times. While ensuring the cleaning effect, it also enables the cleaning mechanism to rise and fall stably as a whole, and the scraper and roller can extend and retract freely, making it suitable for cleaning flues of different diameters. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the position and structure of the lower scraper of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the cleaning box and lifting box of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the lifting box of this utility model.

[0020] In the picture:

[0021] 1-Fluorite, 2-Support frame, 21-Pattern, 3-Reduction gearbox, 31-Drive motor, 4-Rotating rod, 5-Fixed frame, 6-Sweeping box, 61-Baffle, 62-Lower center column, 63-Scraper, 64-First spring, 65-Upper center column, 7-Lifting box, 71-Cover plate, 72-Telescopic cylinder, 73-Second spring, 74-Roller, 8-Lower scraper. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] As attached Figure 1-5 As shown.

[0024] The calcium carbide flue cleaning device includes a support frame 2 installed above the flue 1, a gearbox 3 installed above the support frame 2, and a drive motor 31 connected to one side of the gearbox 3; a rotating rod 4 connected to the gearbox 3 is provided at the center of the flue 1; a fixing frame 5 is provided at the bottom of the flue 1 to help the rotating rod 4 maintain stability; the fixing frame 5 is fixed to the flue 1 by bolts; and a circular through hole for the rotating rod 4 to pass through is provided at the center of the fixing frame 5.

[0025] A cleaning box 6 is provided in the rotating rod 4. 3-6 movable scrapers 63 are embedded inside the cleaning box 6. A lower central column 62 is provided at the center of the cleaning box 6. A first spring 64 is provided between the lower central column 62 and the scraper 63. Through the elastic action of the first spring 64, the scraper 63 can be tightly attached to the inner wall of the flue 1 to effectively remove the accumulated ash in the flue.

[0026] The scraper 63 is made of high-temperature resistant rubber. For easy replacement of the scraper 63 later, see attached... Figure 4 As shown, the slot in the cleaning box 6 for mounting the scraper 63 is a U-shaped slot with an opening at the top.

[0027] Furthermore, to maintain the stability of the scraper 63 during use, downwardly extending protrusions are provided below the partition 61 at the position corresponding to the scraper 63, which are used to block the opening of the U-shaped groove. After the partition 61 is installed, the lower surface of the protrusions slightly contacts the upper surface of the scraper 63, which maintains the mobility of the scraper 63 while preventing the scraper 63 from shaking up and down.

[0028] Above the cleaning box 6, there are sequentially arranged a partition 61, a lifting box 7, and a cover plate 71. The partition 61 is used to separate the cleaning box 6 and the lifting box 7. An upper central column 65 is provided at the center of the partition 61. After the lifting box 7 is installed above the partition 61, the upper central column 65 is located at the center of the lifting box 7. There are 3-6 inclined telescopic cylinders 72 on the outer ring of the lifting box 7. There are openings inside the lifting box 7 for the telescopic cylinders 72 to pass through. The two are movably connected.

[0029] Each telescopic cylinder 72 is equipped with a roller 74 at its outer end, and a second spring 73 is installed at the other end of each telescopic cylinder 72 in contact with the upper central column 65. Under the elastic force of the second spring 73, the roller 74 at the outer end of the telescopic cylinder 72 can be pressed tightly against the inner wall of the flue 1. When the lifting box 7 rotates, the inclined roller 74 can drive the cleaning box 6 below to rise and fall, thereby realizing the all-round cleaning of the inner wall of the flue 1 by the scraper 63.

[0030] The lifting principle is as follows: Under the action of the second spring 73, the roller 74 maintains contact with the inner wall of the flue 1. The roller 74 is installed at an angle of 20-30 degrees. This angle affects the lifting height when the lifting box 7 rotates one revolution.

[0031] The tilt angle is set to ensure that the scraper 63 inside the cleaning box 6 can cover every part of the inner wall of the flue 1, ensuring thorough cleaning without any blind spots.

[0032] As attached Figure 2In the indicated state, when the lifting box 7 rotates clockwise under the drive of the rotating rod 3, the roller 74 moves downward along the inner wall of the flue 1 due to friction, thereby driving the cleaning box 6 to descend and penetrate into the bottom of the flue 1; conversely, when the lifting box 7 rotates counterclockwise, the roller 74 moves upward along the inner wall, the cleaning box 6 rises accordingly, and the scraper 63 cleans the flue 1 in the reverse direction until the lifting box 7 is removed from the flue 1.

[0033] When the device descends, in order to scrape off the accumulated dust on the surface of the rotating rod 4, a lower scraper 8 with an inverted conical structure is installed below the cleaning box 6.

[0034] To enable the rotating rod 4 to drive the rotation of the lifting box 7 and the cleaning box 6, a protrusion is provided on one side of the rotating rod 4. Through slots are provided in the cover plate 71, the upper central column 65, the partition plate 61, the lower central column 62, and the lower scraper 8 for the rotating rod 4 and the protrusion to pass through. This ensures that the rotating rod 4 drives the lifting box 7 and the cleaning box 6 to rotate synchronously.

[0035] When it is necessary to use the device to clean the inner wall of the flue 1, simply unscrew the support plate 21 installed in the support frame 2 to support the cleaning box 6, lower the cleaning mechanism, and press down the scraper 63 and roller 74 respectively, so that the cleaning box 6 and the lifting box 7 can be aligned as attached. Figure 2 As shown, it is placed inside the flue 1; at this time, the drive motor 31 is started, so that the rotating rod 4 drives the lifting box 7 and the cleaning box 6 to rotate clockwise. Under the action of the roller 74, the device is lowered to the bottom of the flue 1 in a rotating state to clean the inside of the flue 1.

[0036] After the cleaning box 6 reaches the bottom, the drive motor 31 reverses, and the rotating rod 4 drives the lifting box 7 and the cleaning box 6 to rotate counterclockwise, causing the device to move upward along the inner wall until it rises to the top of the flue. At this time, the staff can lift the entire device and screw the tray 21 under the cleaning box 6 to fix the cleaning mechanism and complete the entire cleaning process.

[0037] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A calcium carbide flue cleaning device comprising a support frame (2) mounted above the flue (1), characterized in that, A reduction gearbox (3) is installed above the support frame (2), one side of the reduction gearbox (3) is connected with a driving motor (31); a rotating rod (4) is arranged in the center of the flue (1) and is in driving connection with the reduction gearbox (3), a fixing frame (5) is arranged at the bottom of the flue (1) and is used for fixing the rotating rod (4); A protrusion is arranged on one side of the rotating rod (4), a lifting cleaning mechanism is arranged in the rotating rod (4), and a through slot is formed in the center of the cleaning mechanism and is used for the rotating rod (4) and the protrusion to pass through.

2. The calcium carbide flue cleaning device of claim 1, wherein: The cleaning mechanism is composed of a cleaning box (6) and a lifting box (7), a partition plate (61) is arranged between the cleaning box (6) and the lifting box (7), a lower center column (62) is arranged in the center of the cleaning box (6), a plurality of scraper plates (63) are arranged in the cleaning box (6) in a ring shape, and a first spring (64) is arranged between the lower center column (62) and the scraper plate (63); an upper center column (65) is arranged in the center above the partition plate (61), a plurality of inclined telescopic cylinders (72) are arranged in the lifting box (7) in a ring shape, a roller (74) is arranged on one end of the telescopic cylinder (72), and a second spring (73) is arranged between the other end of the telescopic cylinder (72) and the upper center column (65).

3. The calcium carbide flue cleaning device of claim 2, wherein: An upper cover plate (71) is arranged above the lifting box (7).

4. The calcium carbide flue cleaning device of claim 2, wherein: A plurality of U-shaped grooves are formed in the cleaning box (6) and are used for mounting the scraper plates (63).

5. The calcium carbide flue cleaning device of claim 4, wherein: The positions corresponding to the scraper plates (63) below the partition plate (61) are respectively provided with downwardly extending protrusions.

6. The calcium carbide flue cleaning device of claim 2, wherein: A lower scraper (8) in an inverted conical structure is arranged below the cleaning box (6).

7. The calcium carbide flue cleaning device of claim 1, wherein: A supporting plate (21) for supporting the cleaning mechanism is movably arranged in the support frame (2).

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