Coking plant furnace top ascending pipe dust removal equipment

Abstract

The utility model belongs to the field of ascending pipe dust removal, and particularly relates to a coking plant furnace top ascending pipe dust removal device. According to the technology, a vertically-arranged fixing rod is included, a plurality of first scraping plates for cleaning the inner wall of the ascending pipe are evenly distributed on the outer side of the top of the fixing rod, and a first adjusting mechanism for adjusting the distance between the first scraping plates and the fixing rod is arranged on the fixing rod; a plurality of second scraping plates for cleaning the inner wall of the ascending pipe are evenly distributed on the outer side of the bottom of the fixing rod, a second adjusting mechanism for adjusting the distance between the second scraping plates and the fixing rod is arranged on the fixing rod, and the first scraping plates and the second scraping plates are distributed in a staggered mode. The inner wall of the ascension pipe is cleaned through movement of the first scraping plate and the second scraping plate, and compared with a brush mode, the cleaning time is shortened, so that the cleaning efficiency of the inner wall of the ascension pipe is improved; and the inner wall of the ascending pipe is cleaned through movement of the first scraping plate and the second scraping plate, so that the deep part of the ascending pipe is convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the field of rising pipe dust removal, in particular to a rising pipe dust removal device for a coking plant furnace top. Background Art

[0002] A coking plant is an industrial facility that specializes in the dry distillation (coking) process of coal. Its main purpose is to produce coke and chemical products. The riser is an important component of the coking process in the coking plant. It is mainly responsible for transporting the high-temperature raw gas generated in the carbonization chamber to the gas gathering system. The tar vapor in the raw gas is cooled or condensed when it encounters a cold heat exchange interface. The lower the raw gas cooling temperature, the greater the amount of tar precipitation. When the precipitated liquid tar encounters the high-temperature environment in the riser (such as the high-temperature raw gas at the inlet of the raw gas riser and the radiant heat in the furnace), the tar undergoes pyrolysis and thermal condensation and re-vaporizes to form graphite. The higher the temperature, the greater the amount of graphite accumulated in the riser. The accumulated residues attached to the heat exchange interface make it difficult to carry out heat recovery in the long term, affecting the use of the riser.

[0003] Therefore, the dust removal and cleaning work of the coking plant riser is part of the technical operating procedures for the riser in the coking workshop. The main purpose is to keep the interior of the riser, bridge pipe and valve body clean and unobstructed, ensure that the water seal valve is flexible and easy to use, and ensure the normal discharge of coal gas.

[0004] Currently, dust and coke accumulated in the riser are usually removed by brushes or cleaning tools, such as long-handled brushes or cleaning chains. However, in actual use, due to the limited cleaning area of ​​the brush, the cleaning time of the inner wall of the riser is relatively long, resulting in low efficiency. Moreover, when cleaning to a deeper position, the influence of light and space makes it inconvenient to operate the brush and it is also inconvenient to clean the riser in the deep position. Utility Model Content

[0005] The purpose of the utility model is to provide a dust removal device for a coking plant furnace top riser pipe, which is convenient for cleaning the inner wall of the riser pipe.

[0006] The coking plant furnace top riser dust removal device comprises a vertically arranged fixed rod, a plurality of first scrapers for cleaning the inner wall of the riser are evenly distributed on the outer side of the top of the fixed rod, and a first adjustment mechanism for adjusting the distance between the first scrapers and the fixed rod is provided on the fixed rod;

[0007] Several second scrapers for cleaning the inner wall of the riser are evenly distributed on the outside of the bottom of the fixed rod. A second adjustment mechanism for adjusting the distance between the second scraper and the fixed rod is provided on the fixed rod, and the first scraper and the second scraper are staggered.

[0008] Furthermore, the first scraper is provided with two pieces, and the two first scrapers are of arc-shaped structure and are symmetrically distributed on the left and right;

[0009] There are two second scrapers, which are arc-shaped and symmetrically distributed front to back. The first scraper and the second scraper have the same curvature.

[0010] When the first scraper and the second scraper are in contact with the inner wall of the riser, the distance between the ends of the two first scrapers is smaller than the length of the second scraper.

[0011] Furthermore, the first adjustment mechanism includes an adjustment rod horizontally fixed on the side wall of the fixed rod, an adjustment tube is sleeved on the adjustment rod, a locking assembly is provided on the adjustment tube to lock it to the adjustment rod, and the adjustment tube is connected to the inner wall of the first scraper.

[0012] Furthermore, the locking assembly includes an internal thread formed on the inner wall of the adjustment tube, the adjustment rod is a screw threadedly matched with the adjustment tube, and the inner wall of the first scraper is provided with a circular groove for inserting the adjustment tube;

[0013] A connecting assembly is provided between the adjusting tube and the circular groove, and the connecting assembly is used to connect the adjusting tube to the first scraper and enable the adjusting tube to rotate freely. A limiting assembly is provided on the fixing rod for limiting the rotation of the first scraper.

[0014] Furthermore, the connecting assembly includes a first bearing, which is installed between the circular groove and the adjusting tube.

[0015] Furthermore, the height of the first bearing is smaller than the depth of the circular groove, and a sealing ring is installed between the notch of the circular groove and the adjusting tube.

[0016] Furthermore, the limiting assembly includes a reinforcing rod hinged to the outer side wall of the fixed rod and swinging up and down, a reinforcing tube is independently sleeved on the reinforcing rod, and a bolt is provided on the reinforcing tube to fix it to the reinforcing rod, and one end of the reinforcing tube is hinged to the bottom of the first scraper and swings up and down.

[0017] Furthermore, a cylinder is independently sleeved on the adjusting tube, a second bearing is installed between the cylinder and the adjusting tube, and a support rod is horizontally fixed between the cylinder and the inner side wall of the first scraper.

[0018] Furthermore, a driving mechanism is provided above the fixing rod to drive the fixing rod to move.

[0019] Furthermore, the driving mechanism includes a horizontally arranged fixed plate, a plurality of fixed blocks in contact with the outer wall of the riser are arranged below the fixed plate, bolts are arranged on the fixed blocks, and the fixed blocks are fixed to the fixed plate through connecting rods;

[0020] The top of the fixing rod is sleeved with a first slot body with the slot facing downwards, and a hydraulic cylinder is installed between the first slot body and the fixing plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The utility model cleans the inner wall of the riser by moving the first scraper and the second scraper, and the cleaning time is reduced compared with the brush method, thereby improving the cleaning efficiency of the inner wall of the riser; and the movement of the first scraper and the second scraper to clean the inner wall of the riser makes cleaning deep into the riser more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 for Figure 1 Schematic diagram of the top view structure;

[0026] Figure 4 for Figure 1 A schematic diagram of the front structure of FIG.

[0027] Figure 5 This is another structural schematic diagram of the utility model;

[0028] Figure 6 for Figure 5 Usage status diagram;

[0029] The names of the components in the figure are: 1. Fixed rod; 2. Reinforcement rod; 3. Reinforcement tube; 4. First scraper; 5. Adjustment tube; 6. Adjustment rod; 7. Second scraper; 8. Sealing ring; 9. Fixed block; 10. Limit block; 11. Connecting rod; 12. First trough body; 13. Second trough body; 14. Fixed plate. DETAILED DESCRIPTION

[0030] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0031] The embodiment of the present invention is a coking plant furnace top riser dust removal device, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, it includes a vertically arranged fixed rod 1, and a number of first scrapers 4 for cleaning the inner wall of the riser are evenly distributed on the outer side of the top of the fixed rod 1, and a number of second scrapers 7 for cleaning the inner wall of the riser are evenly distributed on the outer side of the bottom of the fixed rod 1. The first scraper 4 and the second scraper 7 are distributed up and down, and the first scraper 4 and the second scraper 7 are staggered.

[0032] The first scraper 4 is provided with two pieces, and the two first scrapers 4 are of arc-shaped structure and are symmetrically distributed left and right. The second scraper 7 is provided with two pieces, and the two second scrapers 7 are of arc-shaped structure and are symmetrically distributed front and back. The curvature of the first scraper 4 and the second scraper 7 is consistent, and the curvature of the first scraper 4 and the second scraper 7 is consistent with the curvature of the inner wall of the riser. When the first scraper 4 and the second scraper 7 are in contact with the inner wall of the riser, the distance between the ends of the two first scrapers 4 is less than the length of the second scraper 7, and the length of the first scraper 4 and the second scraper 7 is greater than the circumference of the inner wall of the riser One quarter of the circumference of the inner wall of the riser, and less than one half of the circumference of the inner wall of the riser. For example, if the riser is 560 mm, its circumference is about 1758 mm, and the length of the first scraper 4 is between 440 mm and 879 mm, so that when the first scraper 4 and the second scraper 7 move in the riser, the gap between the second scraper 7 and the first scraper 4 due to the upper and lower misalignment can be reduced, so that the first scraper 4 and the second scraper 7 can clean the inner wall of the riser; of course, in some embodiments, the first scraper 4 and the second scraper 7 can also be provided with 3 or more blocks.

[0033] An adjusting rod 6 is horizontally arranged between the first scraper 4 and the fixed rod 1. The adjusting rod 6 is horizontally fixed on the side wall of the fixed rod 1. An adjusting tube 5 is sleeved on the adjusting rod 6. The adjusting tube 5 is connected to the inner wall of the first scraper 4. By changing the combined length of the adjusting tube 5 and the adjusting rod 6, the gap between the first scraper 4 and the fixed rod 1 is changed, which facilitates the mechanical installation of the first scraper 4. When in use, first reduce the gap between the first scraper 4 and the fixed rod 1, and then make the first scraper 4 located in the rising tube, and then adjust the distance between the first scraper 4 and the fixed rod 1 so that the first scraper 4 contacts the inner wall of the rising tube.

[0034] The inner wall of the adjustment tube 5 is internally threaded, and the adjustment rod 6 is a screw threadedly engaged with the adjustment tube 5. The inner wall of the first scraper 4 is provided with a circular groove for inserting the adjustment tube 5. Of course, the adjustment tube 5 can also be unthreaded. The adjustment tube 5 is secured to the adjustment rod 6 by bolts. This section constitutes the locking assembly that locks the adjustment tube 5 and the adjustment rod 6.

[0035] A first bearing is installed between the circular groove and the adjusting tube 5. The first bearing is fixedly sleeved on the adjusting tube 5. The outer ring of the first bearing is fixed to the circular groove. The adjusting tube 5 is connected to the circular groove through the first bearing, and the adjusting tube 5 can rotate independently in the circular groove. When in use, the adjusting tube 5 can be rotated to adjust the combined length of the adjusting tube 5 and the adjusting rod 6 to complete the adjustment of the distance between the first scraper 4 and the fixed rod 1. The content of this paragraph as a whole constitutes a connecting component for connecting the adjusting tube 5 to the first scraper 4 and allowing the adjusting tube 5 to rotate freely.

[0036] Of course, in some embodiments, the connecting assembly may also include a circular plate, the outer diameter of the adjusting tube 5 is smaller than the diameter of the circular plate, the diameter of the circular plate is smaller than the diameter of the circular groove, the circular plate is located in the circular groove, and the notch of the circular groove is fixed with a limit block to prevent the circular plate from detaching. The limit block is in the shape of a circular ring, and the inner ring diameter of the limit block is smaller than the diameter of the circular plate.

[0037] The height of the first bearing is less than the depth of the circular groove. A sealing ring 8 is installed between the circular groove opening and the adjusting tube 5. The sealing ring 8 is an existing rotary dynamic sealing ring. The sealing ring 8 can prevent impurities from entering the circular groove and protect the first bearing.

[0038] The outer wall of the fixing rod 1 is hinged with a reinforcing rod 2 that swings up and down. The end of the reinforcing rod 2 is provided with a through hole that communicates front and back. An axis is independently installed in the through hole. The two ends of the axis pass through the through hole to fix the fixing block. The fixing block is fixed to the side wall of the fixing rod 1 and rotates in the through hole through the axis to make the reinforcing rod 2 swing up and down. The reinforcing rod 2 is independently covered with a reinforcing tube 3. The reinforcing tube 3 is provided with a bolt that fixes it to the reinforcing rod 2. One end of the reinforcing tube 3 is hinged to the bottom of the first scraper 4 and swings up and down. The first scraper 4 is supported by the reinforcing rod 2 and the reinforcing tube 3 to prevent the first scraper 4 from rotating. Moreover, after the reinforcing tube 3 and the reinforcing rod 2 are fixed by bolts, the reinforcing tube 3 and the reinforcing rod 2 can also support the first scraper 4. The content of this paragraph as a whole constitutes a limiting component for limiting the rotation of the first scraper 4.

[0039] The adjusting tube 5 is independently sleeved with a cylinder, which is a circular ring. A second bearing is installed between the cylinder and the adjusting tube 5. A support rod is horizontally fixed between the cylinder and the inner wall of the first scraper 4. The inner wall of the first scraper 4 is the side away from the inner wall of the riser. Two support rods are provided, and the first scraper 4 is supported by the support rods. When the adjusting tube 5 rotates, the second bearing can also prevent the sleeve and the support rod from rotating, and also prevent the sleeve and the support rod from limiting the rotation of the adjusting tube 5.

[0040] The above seven sections constitute as a whole a first adjustment mechanism for adjusting the distance between the first scraper 4 and the fixed rod 1 ; the structure of the second adjustment mechanism is consistent with that of the first adjustment mechanism.

[0041] like Figure 5 As shown, a fixing plate 14 is horizontally arranged above the fixing rod 1, and several fixing blocks 9 in contact with the outer wall of the riser are arranged below the fixing plate 14. Bolts are provided on the fixing blocks 9, and the fixing blocks 9 are fixed to the fixing plate 14 through connecting rods 11. The top of the fixing rod 1 is provided with a first groove body 12 with the groove facing downward, and a hydraulic cylinder is installed between the first groove body 12 and the fixing plate 14. The hydraulic cylinder is an existing known technology. The cylinder barrel of the hydraulic cylinder is installed at the bottom of the fixing plate 14, and the piston rod of the hydraulic cylinder is connected to the first groove body 12. Of course, the hydraulic cylinder can also be an electric push rod.

[0042] In order to increase the fixing effect between the fixing block 9 and the riser, a limit block 10 is horizontally fixed on the top of the fixing block 9, and the connecting rod 11 connects the limit block 10 to the fixing plate 14. When in use, the limit block 10 is located on the top of the riser. The limit block 10 can block the downward movement of the fixing plate 14, thereby increasing the fixation of the fixing block 9 and the riser.

[0043] In order to enable the hydraulic cylinder to drive the fixed rod 1 to move up and down, the first trough 12 is a circular structure, the outer side wall of the top of the fixed rod 1 is provided with an external thread, and the inner side wall of the first trough 12 is provided with an internal thread, so that the first trough 12 and the fixed rod 1 are threadedly connected, and the outer side of the first trough 12 is independently sleeved with a second trough 13 with a circular structure, the notch of the second trough 13 is facing downward, and a third bearing is installed between the outer side wall of the first trough 12 and the inner side wall of the second trough 13. The bottom of the first trough 12 exceeds the second trough 13, and the hydraulic cylinder is connected to the second trough 13. The top of the trough body 13 is fixed, and the third bearing can prevent the second trough body 13 from rotating, which facilitates the connection between the first trough body 12 and the fixed rod 1. The first scraper 4 and the second scraper 7 can be driven up and down by the hydraulic cylinder, so that the first scraper 4 and the second scraper 7 can clean the inner wall of the riser back and forth; and in order to reduce the force on the third bearing when the hydraulic cylinder drives the fixed rod 1 to move up and down, a stopper is fixed at the notch of the second trough body 13, and the outer wall of the first trough body 12 is provided with an annular groove for inserting the stopper and rotating horizontally.

[0044] The above three sections collectively constitute the drive mechanism for moving the fixed rod 1. Of course, if no drive mechanism is provided, the top of the fixed rod 1 is allowed to extend sufficiently beyond the first scraper 4. By gripping the fixed rod 1 and pulling the first and second scrapers 4 and 7, the first and second scrapers 4 and 7 clean the inner wall of the riser.

[0045] Working principle:

[0046] When using, such as Figure 6As shown, by adjusting the distance between the second scraper 7 and the first scraper 4 and the fixed rod 1, the first scraper 4 and the second scraper 7 are brought into contact with the inner wall of the riser, and then the fixed block 9 is located on the outside of the riser and fixed to the riser by the bolts on the fixed block 9. The fixed rod 1 is pushed downward by the hydraulic cylinder, so that the first scraper 4 and the second scraper 7 move downward to complete the cleaning of the inner wall of the riser. The cleaning of the inner wall of the riser is completed by the movement of the first scraper 4 and the second scraper 7. The cleaning time is greatly reduced compared to brush cleaning, which increases the cleaning speed of the inner wall of the riser, thereby improving the cleaning efficiency of the riser, and the up and down movement of the first scraper 4 and the second scraper 7 also facilitates cleaning deep in the riser.

Claims

1. A coking plant furnace top riser dust removal device, comprising a vertically arranged fixing rod (1), characterized in that: A plurality of first scrapers (4) for cleaning the inner wall of the riser are evenly distributed on the outer side of the top of the fixed rod (1), and a first adjustment mechanism for adjusting the distance between the first scraper (4) and the fixed rod (1) is provided on the fixed rod (1); A plurality of second scrapers (7) for cleaning the inner wall of the riser are evenly distributed on the outer side of the bottom of the fixed rod (1); a second adjustment mechanism for adjusting the distance between the second scraper (7) and the fixed rod (1) is provided on the fixed rod (1); and the first scraper (4) and the second scraper (7) are staggered.

2. The coking plant furnace top riser dust removal equipment according to claim 1, characterized in that: Two first scrapers (4) are provided, and the two first scrapers (4) are of arc-shaped structure and are symmetrically distributed left and right; Two second scrapers (7) are provided. The two second scrapers (7) are of arc-shaped structure and are symmetrically distributed front to back. The first scraper (4) and the second scraper (7) have the same arc. When the first scraper (4) and the second scraper (7) are in contact with the inner wall of the riser, the distance between the ends of the two first scrapers (4) is smaller than the length of the second scraper (7).

3. The coking plant furnace top riser dust removal equipment according to claim 2, characterized in that: The first adjustment mechanism comprises an adjustment rod (6) fixed horizontally to the side wall of the fixed rod (1); an adjustment tube (5) is sleeved on the adjustment rod (6); a locking assembly is provided on the adjustment tube (5) for locking the adjustment tube (5) with the adjustment rod (6); and the adjustment tube (5) is connected to the inner side wall of the first scraper (4).

4. The coking plant furnace top riser dust removal equipment according to claim 3, characterized in that: The locking assembly includes an internal thread formed on the inner wall of the adjusting tube (5); the adjusting rod (6) is a screw threadedly matched with the adjusting tube (5); and the inner wall of the first scraper (4) is provided with a circular groove for inserting the adjusting tube (5); A connecting assembly is provided between the regulating tube (5) and the circular groove, the connecting assembly being used to connect the regulating tube (5) to the first scraper (4) and to allow the regulating tube (5) to rotate freely, and a limiting assembly for limiting the rotation of the first scraper (4) is provided on the fixing rod (1).

5. The coking plant furnace top riser dust removal equipment according to claim 4, characterized in that: The connecting assembly comprises a first bearing which is mounted between the circular groove and the adjusting tube (5).

6. The coking plant furnace top riser dust removal equipment according to claim 5, characterized in that: The height of the first bearing is smaller than the depth of the circular groove, and a sealing ring (8) is installed between the notch of the circular groove and the regulating tube (5).

7. The coking plant furnace top riser dust removal equipment according to claim 6, characterized in that: The limiting assembly comprises a reinforcing rod (2) hinged to the outer side wall of the fixing rod (1) and swinging up and down, a reinforcing tube (3) independently sleeved on the reinforcing rod (2), a bolt for fixing the reinforcing tube (3) to the reinforcing rod (2) is provided, and one end of the reinforcing tube (3) is hinged to the bottom of the first scraper (4) and swinging up and down.

8. The coking plant furnace top riser dust removal equipment according to claim 7, characterized in that: A cylinder is independently sleeved on the regulating tube (5), a second bearing is installed between the cylinder and the regulating tube (5), and a support rod is horizontally fixed between the cylinder and the inner side wall of the first scraper (4).

9. The coking plant furnace top riser dust removal equipment according to claim 1 or 8, characterized in that: A driving mechanism for driving the fixing rod (1) to move is provided above the fixing rod (1).

10. The coking plant furnace top riser dust removal equipment according to claim 9, characterized in that: The driving mechanism comprises a horizontally arranged fixing plate (14), a plurality of fixing blocks (9) in contact with the outer wall of the riser are arranged below the fixing plate (14), bolts are arranged on the fixing blocks (9), and the fixing blocks (9) are fixed to the fixing plate (14) via connecting rods (11); The top of the fixed rod (1) is sleeved with a first slot body (12) with the slot facing downwards, and a hydraulic cylinder is installed between the first slot body (12) and the fixed plate (14).

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