Sand blasting equipment for heating pipe section of desorption tower

Abstract

The utility model relates to sand blasting equipment for a heating pipe section of a desorption tower, which comprises a base, an inverted L-shaped bracket is fixedly arranged on the base, a sand box is movably arranged on a vertical part of the bracket, a horizontal part of the bracket faces one side far away from the sand box, a material pump is fixedly arranged at the top of the bracket, and a first guide rail is horizontally and fixedly arranged at the bottom along the front-back direction; an electric sliding block is slidably arranged on the first guide rail, a second hydraulic cylinder is vertically and fixedly arranged at the bottom of the electric sliding block, a piston rod of the second hydraulic cylinder faces downwards and is fixedly connected with a third hydraulic cylinder, and a piston rod of the third hydraulic cylinder faces the side away from the sand box and is detachably connected with a scraping disc; the scraping disc is hollow, the side, away from the third hydraulic cylinder, of the scraping disc communicates with a sand blasting pipe, a plurality of nozzles are evenly distributed on the circumferential side of the end, away from the scraping disc, of the sand blasting pipe, a feeding port of a material pump communicates with the lower portion of one side of the sand box, and a discharging port of the material pump detachably communicates with the scraping disc. The sand blasting machine can realize automatic and efficient sand blasting operation, can discharge rust slag in time, and is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of sandblasting, and in particular relates to sandblasting equipment for a heating pipe section of an analytical tower. Background Art

[0002] At present, the desulfurization and denitrification analysis system of sintering flue gas mainly includes an analysis section, a cooling section, a screening system, etc. The equipment used in the analysis section is mainly an analysis tower, and the analysis tower includes a heating section and a cooling section, etc. The heating section and the cooling section usually use a conventional multi-tube heat exchanger. In actual use, due to the extremely harsh working environment in the analysis tower, corrosion problems often occur in the pipe process of the heating section, which seriously reduces the service life of the entire analysis tower, which is not conducive to the stable progress of sintering production. Therefore, in order to improve the service life of the analysis tower, the existing production and use will first sandblast the interior of the pipe process of the heating section to remove rust and then spray anti-corrosion treatment process to enhance the high temperature and corrosion resistance of the pipe process. However, in the existing sandblasting and rust removal operation, it is often necessary for workers to hold a spray gun and extend it into the pipe process for sandblasting, which is inconvenient to operate, time-consuming and labor-intensive, and it is impossible to discharge the cleaned rust residue from the inside of the pipe process, which is not practical enough and needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a sandblasting device for a heating pipe section of an analytical tower, which can realize automatic and efficient sandblasting operations and discharge rust residue in time to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a sandblasting equipment for a heating pipe section of an analytical tower, comprising a base, inverted U-shaped support plates are fixedly arranged on the left and right sides of the top of the base along the front-to-back direction, a through groove is opened on the base corresponding to the inner side of the support plate, a first hydraulic cylinder is vertically fixedly arranged on the horizontal part of the support plate, the piston rod of the first hydraulic cylinder is downwardly facing and fixedly connected to a lifting plate, the lifting plate can pass through the through groove and casters are arranged on the front and back sides of the bottom of the lifting plate, an inverted L-shaped bracket is fixedly arranged on the base between the two support plates, a sand material box is movably arranged on the vertical part of the bracket, the horizontal part of the bracket faces the side away from the sand material box and a material pump and a bottom are fixedly arranged on the top thereof A first guide rail is horizontally fixedly provided on the upper part along the front-to-back direction, an electric slider is slidably provided on the first guide rail, a second hydraulic cylinder is vertically fixedly provided on the bottom of the electric slider, the piston rod of the second hydraulic cylinder faces downward and is fixedly connected to a third hydraulic cylinder, the third hydraulic cylinder is horizontally arranged along the left-right direction and its piston rod faces the side away from the sand box and is detachably connected to a scraper, the scraper is hollow and a sandblasting pipe is coaxially fixedly connected to the side away from the third hydraulic cylinder, a plurality of nozzles are evenly distributed on the circumferential side of an end of the sandblasting pipe away from the scraper, the feed inlet of the material pump is fixedly connected to a lower part of one side of the sand box through a first hose, and the discharge port is detachably connected to a side of the scraper close to the third hydraulic cylinder through a second hose.

[0005] Preferably, the diameter of the scraper is adapted to the inner diameter of the heating tube section of the analytical tower.

[0006] Preferably, an externally threaded connecting rod is coaxially fixed to one side of the scraper close to the third hydraulic cylinder, an internally threaded blind hole matching the externally threaded connecting rod is formed at the end of the piston rod of the third hydraulic cylinder, and the externally threaded connecting rod is threadedly connected to the internally threaded blind hole.

[0007] Preferably, the tail end of the second hose is connected to a side of the scraper plate close to the third hydraulic cylinder through a quick connector.

[0008] Preferably, a second guide rail is vertically fixed on the side of the vertical part of the bracket corresponding to the sand box, a slider is slidably provided on the second guide rail, the slider is fixedly connected to the sand box, two vertically arranged supports are spaced apart on the base below the sand box, a motor is fixed on one support, and a crankshaft is rotatably provided on the other support, the crankshaft is coaxially fixedly connected to the output shaft of the motor, connecting rods are sleeved on two connecting rod journals of equal height on the left and right ends of the crankshaft, and the top ends of the two connecting rods are hinged to the outer bottom of the sand box.

[0009] Preferably, the top of the sand box is connected to a material injection pipe, and a valve is provided on the material injection pipe.

[0010] The beneficial effect of the utility model is that during the sandblasting operation, the heads at the left and right ends of the multi-tube heat exchanger used in the heating section of the analytical tower can be removed first. Then, the two sets of first hydraulic cylinders are operated to extend their piston rods, which can drive the lifting plate to move downward until the casters are placed on the ground and the base is suspended in the air, so that the entire sandblasting equipment can be driven to move flexibly through the cooperation of the four sets of casters, and the sandblasting equipment can be quickly and conveniently moved and adjusted to one side of the corresponding heat exchanger. Then, the two first hydraulic cylinders are operated again to contract their piston rods, which can drive the casters to move upward and suspend in the air and put the base back on the ground, so that the sandblasting equipment no longer moves at will, thereby not affecting subsequent sandblasting operations. Afterwards, the horizontal position of the sandblasting tube in the front and rear directions can be flexibly adjusted by sliding the electric slider on the first guide rail, and the height of the sandblasting tube in the vertical direction can be flexibly adjusted by extending and retracting the piston rod of the second hydraulic cylinder. With mutual cooperation, the sandblasting tube can be flexibly aligned with each pipe pass inside the corresponding heat exchanger;

[0011] When the sandblasting tube is aligned with a pipe passage, the third hydraulic cylinder is operated first to extend its piston rod, driving the end of the sandblasting tube where the nozzle is located to extend into the corresponding pipe passage. Then, the material pump is operated. Under the pumping of the material pump, the sand in the sand material box can be transported to the scraper through the first hose, the material pump and the second hose, and then flow into the sandblasting tube, and finally evenly sprayed onto the inner wall of the corresponding pipe passage through multiple nozzles evenly distributed circumferentially. At the same time, the third hydraulic cylinder is operated again to continue to extend its piston rod, driving the scraper and the sandblasting tube to move forward until the scraper extends from the other end of the corresponding pipe passage, so that the effective sandblasting treatment of the pipe passage can be achieved in coordination. In this process, since the nozzle is in front and the scraper is in the back, and the scraper is adapted to the inner diameter of the corresponding pipe passage, the forward movement of the scraper can timely scrape and clean the inner wall after sandblasting, and move forward with the cleaned rust residue. When the scraper extends from the other end, the cleaned rust residue can also be directly pushed out of the corresponding pipe passage, which is more practical. Afterwards, the third hydraulic cylinder moves again, and its piston rod contracts, driving the scraper and the sandblasting tube to return to their original positions, and then adjusting the position of the sandblasting tube, and sandblasting another pipe according to the above steps. In this way, through this sandblasting equipment, more efficient automatic sandblasting of the corresponding pipe can be achieved, the overall operation is simpler and more convenient, time-saving and labor-saving, and the rust residue can be automatically pushed out in time, which is more convenient and practical. In addition, the movable setting of the sand material box can effectively ensure the material uniformity of the sand material stored therein, which is more conducive to improving the quality of sandblasting. The detachable connection between the scraper and the piston rod of the third hydraulic cylinder and the detachable connection between the scraper and the second hose can realize the convenient disassembly and assembly of the scraper as a whole, so as to replace the corresponding scraper according to the actual inner diameter size of the pipe, which has a wide range of applications and is more flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main structural schematic diagram of the utility model;

[0013] Figure 2 It is a left-side structural schematic diagram of the base of the utility model;

[0014] Figure 3 This is a schematic diagram of the main structure of the third hydraulic cylinder and the scraper of the utility model;

[0015] Figure 4 It is a right side structural schematic diagram of the scraper of the utility model;

[0016] Figure 5 It is a schematic diagram of the main structure of the utility model during sandblasting.

[0017] Numbers in the figure: 1 is a base, 2 is a support plate, 3 is a through groove, 4 is a first hydraulic cylinder, 5 is a lifting plate, 6 is a caster, 7 is a bracket, 8 is a sand box, 9 is a material pump, 10 is a first guide rail, 11 is an electric slider, 12 is a second hydraulic cylinder, 13 is a third hydraulic cylinder, 14 is a scraper, 15 is a sandblasting tube, 16 is a nozzle, 17 is a first hose, 18 is a second hose, 19 is an externally threaded connecting rod, 20 is an internally threaded blind hole, 21 is a quick connector, 22 is a second guide rail, 23 is a slider, 24 is a support, 25 is a motor, 26 is a crankshaft, 27 is a connecting rod, 28 is a material injection pipe, 29 is a valve, and 30 is a pipe line. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0019] like Figures 1 to 5 As shown, a sandblasting device for a heating pipe section of an analytical tower comprises a base 1, and an inverted U-shaped support plate 2 is fixedly provided on both the left and right sides of the top of the base 1 along the front-back direction, and a through slot 3 is provided on the base 1 corresponding to the inner side of the support plate 2, and a first hydraulic cylinder 4 is fixedly provided vertically on the horizontal part of the support plate 2, and the piston rod of the first hydraulic cylinder 4 faces downward and is fixedly connected to a lifting plate 5, and the lifting plate 5 can pass through the through slot 3 and casters 6 are provided on both the front and back sides of the bottom of the lifting plate 5. An inverted L-shaped bracket 7 is fixedly provided on the base 1 between the two support plates 2, and a sand material box 8 is movably provided on the vertical part of the bracket 7, and the horizontal part of the bracket 7 faces the side away from the sand material box 8 and a material pump 9 is fixedly provided on the top thereof, and a first guide rail 10 is fixedly provided horizontally on the bottom along the front-back direction. An electric slider 11 is slidably provided on the first guide rail 10, and a second hydraulic cylinder 12 is vertically fixed to the bottom of the electric slider 11. The piston rod of the second hydraulic cylinder 12 faces downward and is fixedly connected to the third hydraulic cylinder 13. The third hydraulic cylinder 13 is horizontally arranged in the left-right direction and its piston rod faces the side away from the sand material box 8 and is detachably connected to a scraper 14. The scraper 14 is hollow and a sandblasting tube 15 is coaxially fixedly connected to the side away from the third hydraulic cylinder 13. A plurality of nozzles 16 are evenly distributed on the circumference of the end of the sandblasting tube 15 away from the scraper 14. The feed port of the material pump 9 is fixedly connected to the lower part of one side of the sand material box 8 through the first hose 17, and the discharge port is detachably connected to the side of the scraper 14 close to the third hydraulic cylinder 13 through the second hose 18;

[0020] During the sandblasting operation, the heads on the left and right ends of the multi-tube heat exchanger used in the heating section of the analytical tower can be removed first. Then, run the two sets of first hydraulic cylinders 4 to extend their piston rods, which can drive the lifting plate 5 to move down until the casters 6 are placed on the ground and the base 1 is suspended in the air, so that the entire sandblasting equipment can be flexibly moved and walked through the cooperation of the four sets of casters 6, and the sandblasting equipment can be quickly and conveniently moved and adjusted to the position on one side of the corresponding heat exchanger. Then, run the two first hydraulic cylinders 4 again to shrink their piston rods, which can drive the casters 6 to move up and suspend in the air and put the base 1 back on the ground, so that the sandblasting equipment will no longer move at will, thereby not affecting the subsequent sandblasting operation. Afterwards, the horizontal position of the sandblasting tube 15 in the front and rear directions can be flexibly adjusted by sliding the electric slider 11 on the first guide rail 10, and the height of the sandblasting tube 15 in the vertical direction can be flexibly adjusted by the extension and retraction of the piston rod of the second hydraulic cylinder 12. With mutual cooperation, the sandblasting tube 15 can be flexibly aligned with each pipe pass 30 inside the corresponding heat exchanger;

[0021] When the sandblasting tube 15 is aligned with a pipe passage 30, the third hydraulic cylinder 13 is operated first to extend its piston rod, driving the end of the sandblasting tube 15 where the nozzle 16 is located to extend into the corresponding pipe passage 30. Then, the material pump 9 is operated, and under the pumping of the material pump 9, the sand in the sand material box 8 can be transported to the scraper 14 through the first hose 17, the material pump 9 and the second hose 18, and then flow into the sandblasting tube 15, and finally uniformly sprayed onto the inner wall of the corresponding pipe passage 30 through a plurality of nozzles 16 uniformly distributed circumferentially. At the same time, the third hydraulic cylinder 13 is operated again, so that its piston rod continues to extend, driving the scraper 14 and the sandblasting tube 15 to move forward until the scraper 14 extends from the other end of the corresponding pipe 30, so that the effective sandblasting treatment of the pipe 30 can be achieved in coordination. In this process, since the nozzle 16 is in front and the scraper 14 is in the back, and the scraper 14 is adapted to the inner diameter of the corresponding pipe 30, the forward movement of the scraper 14 can timely scrape and clean the inner wall after sandblasting, and move forward with the cleaned rust residue. When the scraper 14 extends from the other end, the cleaned rust residue can also be directly pushed out of the corresponding pipe 30, which is more practical. Afterwards, the third hydraulic cylinder 13 is operated again, and its piston rod is retracted, driving the scraper 14 and the sandblasting tube 15 to return to their original positions, and then adjusting the position of the sandblasting tube 15, and sandblasting treatment of another pipe 30 can be performed according to the above steps. In this way, through the present sandblasting equipment, a more efficient automatic sandblasting treatment of the corresponding pipe 30 can be achieved, the overall operation is simpler and more convenient, time-saving and labor-saving, and the rust residue can be automatically pushed out in time, which is more convenient and practical. In addition, the movable setting of the sand material box 8 can effectively ensure the material uniformity of the sand material stored therein, which is more conducive to improving the quality of sandblasting. The detachable connection between the scraper 14 and the piston rod of the third hydraulic cylinder 13 and the detachable connection between the scraper 14 and the second hose 18 can realize the convenient disassembly and assembly of the scraper 14 as a whole, so as to replace the scraper 14 with a suitable one according to the actual inner diameter size of the pipe 30, which has a wide range of applications and is more flexible and convenient to use.

[0022] In this embodiment, the diameter of the scraper 14 is adapted to the inner diameter of the tube of the heating tube section of the analytical tower, so as to facilitate the alignment and positioning of the sandblasting tube 15 in actual use, and to facilitate the scraping and cleaning operation of the inner wall of the tube 30 during the sandblasting process.

[0023] In this embodiment, an externally threaded connecting rod 19 is coaxially fixed to one side of the scraper 14 close to the third hydraulic cylinder 13, and an internally threaded blind hole 20 matching the externally threaded connecting rod 19 is provided at the end of the piston rod of the third hydraulic cylinder 13. The externally threaded connecting rod 19 is threadedly connected to the internally threaded blind hole 20, thereby realizing a detachable connection between the scraper 14 and the piston rod of the third hydraulic cylinder 13, so that the scraper 14 that is matched can be replaced according to the actual inner diameter size of the pipe 30. It has a wide range of applications and is more flexible and convenient to use.

[0024] In this embodiment, the tail end of the second hose 18 is connected to the side of the scraper 14 close to the third hydraulic cylinder 13 through the quick connector 21, thereby realizing quick and detachable connection between the scraper 14 and the second hose 18, so as to facilitate replacement of the scraper 14 according to the actual inner diameter of the pipe 30, which has a wide range of applications and is more flexible and convenient to use. The quick connector 21 can be made of existing technology.

[0025] In this embodiment, a second guide rail 22 is vertically fixedly provided on the side of the vertical portion of the bracket 7 corresponding to the sand box 8 , and a slider 23 is slidably provided on the second guide rail 22 , and the slider 23 is fixedly connected to the sand box 8 . Two vertically arranged supports 24 are distributed at intervals on the base 1 below the sand box 8. A motor 25 is fixedly arranged on one support 24, and a crankshaft 26 is rotatably arranged on the other support 24. The crankshaft 26 is coaxially fixedly connected to the output shaft of the motor 25. Two connecting rod journals at the same height on the left and right ends of the crankshaft 26 are sleeved with connecting rods 27. The top ends of the two connecting rods 27 are hinged to the outer bottom of the sand box 8, so that in actual use, the motor 25 can drive the crankshaft 26 to rotate, and then through the hinge connection of the connecting rod 27 with the bottom of the sand box 8 and the mutual cooperation of the upper and lower sliders connected between the slider 23 and the second guide rail 22 of the sand box 8, the rotational movement of the crankshaft 26 can be converted into the up and down reciprocating movement of the entire sand box 8, so that the sand in the sand box 8 can be made to surge up and down, thereby effectively ensuring the material uniformity of the sand stored therein, which is more conducive to improving the sandblasting quality.

[0026] In this embodiment, the top of the sand material box 8 is connected to a filling pipe 28 , and a valve 29 is provided on the filling pipe 28 for replenishing sand material into the sand material box 8 when the sand material stored in the sand material box 8 is insufficient.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sandblasting device for a heating pipe section of a desorption tower, comprising a base, characterized in that: The left and right sides of the top of the base are fixedly provided with inverted U-shaped support plates along the front and rear directions, and a through slot is opened on the base corresponding to the inner side of the support plate, and a first hydraulic cylinder is vertically fixedly provided on the horizontal part of the support plate, and the piston rod of the first hydraulic cylinder is downwardly and fixedly connected to a lifting plate, and the lifting plate can pass through the through slot and casters are provided on the front and rear sides of the bottom of the lifting plate, an inverted L-shaped bracket is fixedly provided on the base between the two support plates, a sand box is movably provided on the vertical part of the bracket, and the horizontal part of the bracket faces the side away from the sand box and a material pump is fixedly provided on the top, and a first guide rail is horizontally fixedly provided on the bottom along the front and rear direction, and the first guide rail An electric slider is provided on the rail for sliding, and a second hydraulic cylinder is vertically fixed on the bottom of the electric slider, the piston rod of the second hydraulic cylinder is downward and fixedly connected to the third hydraulic cylinder, the third hydraulic cylinder is horizontally arranged in the left and right directions, and its piston rod is facing the side away from the sand box and is detachably connected to a scraper, the scraper is hollow and the side away from the third hydraulic cylinder is coaxially fixedly connected to a sandblasting pipe, a plurality of nozzles are evenly distributed on the circumference of one end of the sandblasting pipe away from the scraper, the feed port of the material pump is fixedly connected to the lower part of one side of the sand box through a first hose, and the discharge port is detachably connected to the side of the scraper close to the third hydraulic cylinder through a second hose.

2. The sandblasting equipment for the heating pipe section of the analytical tower according to claim 1 is characterized in that: The diameter of the scraper is adapted to the inner diameter of the heating pipe section of the analytical tower.

3. The sandblasting equipment for the heating pipe section of the analytical tower according to claim 1 is characterized in that: An external threaded connecting rod is coaxially fixed on one side of the scraper close to the third hydraulic cylinder. An internal threaded blind hole matching the external threaded connecting rod is formed at the end of the piston rod of the third hydraulic cylinder. The external threaded connecting rod is threadedly connected to the internal threaded blind hole.

4. The sandblasting equipment for the heating pipe section of the analytical tower according to claim 1 is characterized in that: The tail end of the second hose is connected to a side of the scraper plate close to the third hydraulic cylinder through a quick connector.

5. The sandblasting equipment for the heating pipe section of the analytical tower according to claim 1 is characterized in that: A second guide rail is vertically fixed on the side of the vertical part of the bracket corresponding to the sand box, and a slider is slidably provided on the second guide rail. The slider is fixedly connected to the sand box. Two vertically arranged supports are spaced apart on the base below the sand box, one support is fixedly provided with a motor, and the other support is rotatably provided with a crankshaft, the crankshaft is coaxially fixedly connected with the output shaft of the motor, and connecting rods are sleeved on two connecting rod journals of equal height on the left and right ends of the crankshaft, and the top ends of the two connecting rods are hinged to the outer bottom of the sand box.

6. The sandblasting equipment for the heating pipe section of the analytical tower according to claim 1 is characterized in that: The top of the sand material box is connected with a material injection pipe, and a valve is arranged on the material injection pipe.

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