CN109972154A - A kind of hot water pool for pickling steel pipe treatment and treatment process - Google Patents

Abstract

The invention discloses a hot water pool for pickling steel pipes and a treatment process, in particular to the field of steel pipe processing, including an annealing furnace and a cleaning pool, the cleaning pool is arranged on one side of the annealing furnace, and a plate The heat exchange component and the other side are provided with a water wiping component; the plate heat exchange component includes a casing, a heat exchange mechanism is arranged inside the casing, an air intake pipe is arranged through the top of the casing, and an air inlet pipe is arranged through the bottom of the side surface. There is an exhaust pipe, and a water inlet pipe runs through the top of the side surface of the casing and a water outlet pipe runs through the bottom. The invention makes the water spots on the surface of the steel pipe evaporate quickly after cleaning, improves the drying efficiency of the steel pipe, and at the same time can effectively avoid the phenomenon of water spots caused by the slow drying speed of the water spots on the surface of the steel pipe. At the same time, because the annealing furnace is used to provide the heat source, there is no need to set an additional heat source, which is more energy-saving and environmentally friendly.

Description

A kind of hot water pool for pickling steel pipe treatment and treatment process

technical field

The invention relates to the technical field of steel pipe processing, and more specifically, the invention relates to a hot water pool for pickling steel pipes and a treatment process.

Background technique

Steel pipes are divided into round, square, rectangular and special-shaped steel pipes according to their cross-sectional shapes; according to their materials, they are divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes; , steel pipes for thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, of which seamless steel pipes are further divided into hot-rolled and cold-rolled (drawn) ) two kinds of welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes. In the process of processing, the steel pipes need to be pickled.

When the steel pipe is pickled, an oxide film protective layer is formed on the surface to improve the anti-corrosion ability of the steel pipe. After pickling, the steel pipe needs to be washed with clean water to remove the acid solution on the surface of the steel pipe. The steel pipe is air-dried, and when it is dry, the steel pipe is at normal temperature.

However, in its actual implementation, this method of drying steel pipes at room temperature has some disadvantages, that is, during the drying process, due to the temperature, the water stains on the surface of the steel pipes dry at a slower rate, and at the same time they will form after complete drying. Water spots seriously affect the aesthetics of steel pipes.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a hot water pool for pickling steel pipe treatment and a treatment process. By heating the water in the cleaning pool, the water stains on the surface of the steel pipe after cleaning are The reason for the high temperature will evaporate quickly, which improves the drying efficiency of the steel pipe. At the same time, it can effectively avoid the phenomenon of water spots caused by the slow drying speed of water stains on the surface of the steel pipe. Compared with the existing technology, it effectively improves the aesthetics of the steel pipe. The annealing furnace is used to provide the heat source, so no additional heat source is required, which is more energy-saving and environmentally friendly, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a hot water pool for pickling steel pipes and a treatment process, including an annealing furnace and a cleaning pool, the cleaning pool is provided on one side of the annealing furnace, and the cleaning pool is provided on one side. There is a plate heat exchange component and a water wiping component on the other side;

The plate heat exchange assembly includes a shell, a heat exchange mechanism is arranged inside the shell, an air intake pipe runs through the top of the shell and an exhaust pipe runs through the bottom of the side surface, and the top of the side surface of the shell is provided with an exhaust pipe. The water inlet pipe and the bottom are provided with a water outlet pipe;

The water wiping assembly includes a mounting plate, the mounting plate is fixed on the side of the cleaning pool, a side plate is fixed on the top of the mounting plate, a bearing is nested on the side plate, and the inner side of the bearing is provided with a rotating plate. The outer side of the rotating rod is sleeved with a rotating roller, and the outer side of the rotating roller is sleeved with a water-absorbing sponge layer.

In a preferred embodiment, the water inlet pipe is provided with a first suction pump, and the water outlet pipe is provided with a second suction pump and a stop valve.

In a preferred embodiment, the end of the exhaust pipe is provided with an exhaust processor, the end of the inlet pipe is connected to the annealing furnace, and the inlet pipe is provided with a primary filter assembly, and the primary filter assembly includes a machine The shell is provided with a dust filter bag inside the shell.

In a preferred embodiment, an L-shaped bracket is fixedly arranged on the side of the side plate, and a motor is fixedly arranged at the top of the L-shaped bracket, and the motor is connected with the rotating rod in a driving manner.

In a preferred embodiment, the heat exchange mechanism includes an installation frame, a heat exchange coil is arranged inside the installation frame, and the top end of the heat exchange coil is connected to the intake pipe and the bottom end of the heat exchange coil is connected to the exhaust pipe.

In a preferred embodiment, a support mechanism is provided inside the cleaning tank, and the support mechanism includes a grid plate, and a support rod is fixed at the bottom of the grid plate.

In a preferred embodiment, the inside of the cleaning tank is provided with an impurity-removing filter, the impurity-removing filter is arranged on the top of the support mechanism, and a rubber connection ring is fixed on the outside of the impurity-removing filter, and the rubber connection The top of the ring is fixed with a lower connecting ring, the outer side of the lower connecting ring is sleeved with a connecting rope, and the end of the connecting rope is provided with a hanging hook.

In a preferred embodiment, an upper connecting ring is provided on the inner side of the hanging hook, and the upper connecting ring is fixed on the inner wall of the cleaning tank.

Technical effect and advantage of the present invention:

1. The present invention heats the water in the cleaning pool, so that the water stains on the surface of the steel pipe after cleaning will evaporate quickly due to the high temperature, which improves the drying efficiency of the steel pipe, and at the same time, it can also effectively avoid drying due to water stains on the surface of the steel pipe. Compared with the existing technology, the water spot phenomenon caused by the slow speed effectively improves the aesthetics of the steel pipe. At the same time, because the annealing furnace is used to provide the heat source, there is no need to set an additional heat source, which is more energy-saving and environmentally friendly;

2. By setting up the primary filter assembly, it is convenient to prevent the particles in the high-temperature exhaust gas from adhering to the surface of the heat exchange coil and affecting the heat exchange effect between water and high-temperature exhaust gas, effectively ensuring the heat exchange efficiency between water and high-temperature exhaust gas;

3. By installing the accumulated water wiping component, it is convenient for the rotating rod to drive the water-absorbing sponge layer to wipe the accumulated water at the bottom of the steel pipe through the rotating roller, so as to avoid the situation that there is too much water accumulated at the bottom of the steel pipe and cannot be dried quickly;

4. Through the impurity removal filter, it is convenient to quickly clean the waste in the cleaning pool.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a structural schematic diagram of the plate heat exchange assembly of the present invention;

3 is a schematic side view of the structure of the water wiping assembly of the present invention;

Fig. 4 is the schematic diagram of the three-dimensional structure of the primary filter assembly of the present invention;

5 is a schematic structural diagram of the heat exchange mechanism of the present invention;

Fig. 6 is a schematic structural view of part A in Fig. 1 of the present invention;

Fig. 7 is a schematic structural diagram of part B in Fig. 1 of the present invention.

Reference numerals are: 1 annealing furnace, 2 cleaning pool, 3 plate heat exchange components, 4 water wiping components, 5 heat exchange mechanism, 6 air intake pipes, 7 exhaust pipes, 8 water inlet pipes, 9 water outlet pipes, 10 water absorbing sponges Layer, 11 first suction pump, 12 second suction pump, 13 globe valve, 14 exhaust gas processor, 15 primary filter assembly, 16 casing, 17 dust filter bag, 18 mounting plate, 19 side plate, 20 bearing, 21 rotating rod , 22 rotating rollers, 23 L-shaped brackets, 24 motors, 25 mounting frames, 26 heat exchange coils, 27 supporting mechanisms, 28 grid plates, 29 supporting rods, 30 impurity removal filters, 31 rubber connecting rings, 32 lower connections Ring, 33 connecting rope, 34 hanging hook, 35 upper connecting ring, 36 shell.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in the accompanying drawings 1 and 2, a hot water tank for pickling steel pipe treatment and the processing process, including an annealing furnace 1 and a cleaning pool 2, the cleaning pool 2 is provided on one side of the annealing furnace 1, and the cleaning pool 2. One side is provided with a plate heat exchange component 3 and the other side is provided with a water wiping component 4;

The plate heat exchange assembly 3 includes a housing 36, the housing 36 is provided with a heat exchange mechanism 5, the top of the housing 36 is provided with an air intake pipe 6 and the bottom of the side is provided with an exhaust pipe 7. The top of the side of the housing 36 is provided with a water inlet pipe 8 and the bottom is provided with a water outlet pipe 9;

The water inlet pipe 8 is provided with a first suction pump 11, and the water outlet pipe is provided with a second suction pump 12 and a stop valve 13;

The end of the exhaust pipe 7 is provided with a tail gas processor 14, and the end of the intake pipe 6 is connected to the annealing furnace 1;

The heat exchange mechanism 5 includes an installation frame 25, and a heat exchange coil 26 is arranged inside the installation frame 25, and the top end of the heat exchange coil 26 is connected with the intake pipe 6 and the bottom end is connected with the exhaust pipe 7;

The cleaning tank 2 is provided with a support mechanism 27 inside, and the support mechanism 27 includes a grid plate 28 , and a support rod 29 is fixed on the bottom of the grid plate 28 .

The specific embodiment is: in actual use, water is stored in the cleaning tank 2, and then the end of the water inlet pipe 8 is connected to the water outlet of the cleaning tank 2, and then the first suction pump 11 is started, and the first suction pump 11 passes through the inlet and outlet. The water pipe 8 sends the water inside the cleaning tank 2 to the inside of the casing 36, and the water in the casing 36 is pumped to the inside of the cleaning tank 2 by the second suction pump 12 on the water outlet pipe 9, thereby forming a cycle, and in the water circulation During the process, the high-temperature exhaust gas generated by the annealing furnace 1 enters the casing 16 through the intake pipe 6, and the high-temperature exhaust gas exchanges heat with the water in the heat exchange coil 26, thereby increasing the temperature of the water. The pipe 7 enters the exhaust gas processor 14. At this time, the water temperature inside the cleaning tank 2 gradually rises. When cleaning the steel pipe, the steel pipe is put into the cleaning tank 2. Since the water temperature in the cleaning tank 2 is relatively high, When the steel pipe is taken out from the cleaning tank 2, the water spots on the surface of the steel pipe will evaporate rapidly due to the high temperature, which improves the drying efficiency of the steel pipe, and at the same time can effectively avoid the water spot phenomenon caused by the slow drying speed of the water stains on the surface of the steel pipe. Compared with the prior art, the aesthetics of the steel pipe is effectively improved, and at the same time, since the annealing furnace 1 is used to provide a heat source, no additional heat source is required, which is more energy-saving and environmentally friendly.

As shown in FIG. 1 and FIG. 4 , a hot water pool for pickling steel pipe and the treatment process further includes a primary filter assembly 15 , the primary filter assembly 15 is arranged on the intake pipe 6 , and the primary filter assembly 15 It includes a casing 16, and the casing 16 is provided with a dust filter bag 17 inside.

The specific embodiment is: by providing a primary filter assembly 15, it is convenient to use the dust filter bag 17 inside the casing 16 to filter the particulate matter in the high-temperature exhaust gas generated by the annealing furnace 1, so as to prevent the particulate matter in the high-temperature exhaust gas from adhering to the heat exchange plate. The surface of the pipe 26 affects the heat exchange effect between the water and the high-temperature exhaust gas, which effectively ensures the heat exchange efficiency between the water and the high-temperature exhaust gas.

As shown in accompanying drawings 1 and 3, a hot water pool for pickling steel pipe treatment and its treatment process also includes a stagnant water wiping assembly 4, which is fixed on the other side of the cleaning pool 2, so that The stagnant water wiping assembly 4 includes a water-absorbing sponge layer 10, the stagnant water wiping assembly 4 also includes a mounting plate 18, the mounting plate 18 is fixed on the side of the cleaning pool 2, and the top of the mounting plate 18 is fixed with a side plate 19 , the side plate 19 is nested with a bearing 20, the inner side of the bearing 20 is provided with a rotating rod 21, and the outer side of the rotating rod 21 is sleeved with a rotating roller 22, and the water-absorbing sponge layer 10 is sleeved on the rotating shaft. Outside the roller 22, an L-shaped support 23 is fixed on the side of the side plate 19, and a motor 24 is fixed on the top of the L-shaped support 23, and the motor 24 is connected to the rotating rod 21 through transmission.

The specific implementation method is as follows: by providing the stagnant water wiping assembly 4, so that when the steel pipe is taken out from the cleaning pool 2, the motor 24 is used to drive the rotating rod 21 to rotate, and then the rotating rod 21 drives the water-absorbing sponge layer 10 through the rotating roller 22 Wipe the accumulated water at the bottom of the steel pipe to avoid the situation where there is too much water at the bottom of the steel pipe and cannot be dried quickly.

As shown in accompanying drawing 1, accompanying drawing 6 and accompanying drawing 7, a kind of hot water tank for pickling steel pipe treatment and processing process, also includes impurity removal filter screen 30, and described impurity removal filter screen 30 is arranged in cleaning tank 2, The impurity-removing filter screen 30 is arranged on the top of the support mechanism 27 , a rubber connecting ring 31 is fixed on the outside of the impurity-removing filter screen 30 , and a lower connecting ring 32 is fixed on the top of the rubber connecting ring 31 . The outer side of 32 is sleeved with a connecting rope 33, the end of the connecting rope 33 is provided with a hanging hook 34, the inner side of the hanging hook 34 is provided with an upper connecting ring 35, and the upper connecting ring 35 is fixed on the inner wall of the cleaning pool 2 .

The specific embodiment is as follows: by providing the impurity removal filter 30, it is convenient to use the impurity removal filter 30 to block the waste generated in the cleaning process. After the cleaning is completed, the hanging hook 34 can be directly removed from the upper connecting ring 35. Then, pull the connecting rope 33 at the bottom of the hanging hook 34, and then take out the impurity-removing filter 30 from the cleaning tank 2, so as to quickly clean the waste in the cleaning tank 2.

The working principle of the present invention:

With reference to accompanying drawings 1 and 2 of the description, the present invention heats the water in the cleaning pool 2, so that the water stains on the surface of the steel pipe after cleaning will evaporate quickly due to the high temperature, which improves the drying efficiency of the steel pipe, and at the same time It can effectively avoid the phenomenon of water spots caused by the slow drying speed of water stains on the surface of the steel pipe. Compared with the prior art, the appearance of the steel pipe is effectively improved. At the same time, since the heat source is provided by the annealing furnace 1, no additional heat source is required. More energy saving and environmental protection;

Referring to Fig. 1 and Fig. 4 of the description, the primary filter assembly 15 is provided to avoid the occurrence of the situation that the particulate matter in the high-temperature exhaust gas adheres to the surface of the heat exchange coil 26 and affects the heat exchange effect between the water and the high-temperature exhaust gas, effectively guaranteeing The heat exchange efficiency between water and high temperature exhaust gas is improved;

Referring to the accompanying drawings 1 and 3 of the description, the water wiping assembly 4 is provided, so that the rotating rod 21 drives the water-absorbing sponge layer 10 through the rotating roller 22 to wipe the water at the bottom of the steel pipe, so as to avoid the accumulation of water at the bottom of the steel pipe. There are too many situations that cannot be dried quickly;

With reference to accompanying drawing 1, accompanying drawing 6 and accompanying drawing 7 of specification, by setting the impurity removal filter screen 30, in order to quickly clean the waste in the cleaning pool 2.

The last points to be noted are: First of all, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, and may be mechanical connection. or electrical connection, or internal communication between two components, or direct connection, "up", "down", "left", "right", etc. are only used to indicate relative positional relationship, when the absolute position of the object being described changes, the relative positional relationship may change;

Secondly: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, other structures can refer to the usual design, and the same embodiment and different embodiments of the present invention can be combined with each other if there is no conflict;

Finally: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention within the scope of protection.

Claims (8)

1. A pickling steel pipe is processed with a hot water pool and a treatment process, comprising an annealing furnace (1) and a cleaning pool (2), and the cleaning pool (2) is located on one side of the annealing furnace (1), and is characterized in that: One side of the cleaning pool (2) is provided with a plate heat exchange assembly (3) and the other side is provided with an accumulated water wiping assembly (4); The plate heat exchange assembly (3) includes a shell (36), a heat exchange mechanism (5) is provided inside the shell (36), and an air intake pipe (6) and An exhaust pipe (7) runs through the bottom of the side, a water inlet pipe (8) runs through the top of the side of the housing (36), and a water outlet pipe (9) runs through the bottom; The accumulated water wiping assembly (4) includes a mounting plate (18), the mounting plate (18) is fixed on the side of the cleaning pool (2), and the top of the mounting plate (18) is fixed with a side plate (19), The side plate (19) is nested with a bearing (20), the inner side of the bearing (20) is provided with a rotating rod (21), and the outer side of the rotating rod (21) is sleeved with a rotating roller (22). The outer side of the rotating roller (22) is sleeved with a water-absorbing sponge layer (10). 2 . The hot water pool for pickling steel pipe treatment and the treatment process according to claim 1 , wherein the water inlet pipe (8) is provided with a first suction pump (11), and the water outlet pipe is provided with a first suction pump (11). 3 . There is a second suction pump (12) and a shut-off valve (13). 3. A kind of pickling steel pipe treatment according to claim 1 is characterized in that: described exhaust pipe (7) end is provided with tail gas treater (14), and described inlet pipe ( 6) The end is connected to the annealing furnace (1), the inlet pipe (6) is provided with a primary filter assembly (15), and the primary filter assembly (15) includes a casing (16), and the casing (16 ) is provided with a dust filter bag (17) inside. 4. A kind of pickling steel pipe treatment hot water pool and treatment process according to claim 1, characterized in that: the side plate (19) is fixedly provided with an L-shaped bracket (23), and the L-shaped bracket ( 23) A motor (24) is fixedly installed on the top, and the motor (24) is connected to the rotating rod (21) in transmission. 5. A hot water pool for pickling steel pipe treatment and the treatment process according to claim 1, characterized in that: the heat exchange mechanism (5) comprises an installation frame (25), and an inner side of the installation frame (25) is provided with There is a heat exchange coil (26), the top end of the heat exchange coil (26) is connected with the air intake pipe (6) and the bottom end is connected with the exhaust pipe (7). 6 . The hot water pool for pickling steel pipe and the treatment process according to claim 1 , wherein a support mechanism ( 27 ) is provided inside the cleaning pool ( 2 ), and the support mechanism ( 27 ) comprises: 7 . A grid plate (28) is provided with a support rod (29) fixed at the bottom of the grid plate (28). 7. A hot water pool for pickling steel pipe treatment according to claim 6 and the treatment process, characterized in that: the cleaning pool (2) is provided with an impurity removal filter (30), and the impurity removal filter (30) is located on the top of the support mechanism (27), the outer side of the impurity removal filter (30) is fixed with a rubber connecting ring (31), and the top of the rubber connecting ring (31) is fixed with a lower connecting ring (32) , the outer side of the lower connecting ring (32) is sleeved with a connecting rope (33), and the end of the connecting rope (33) is provided with a hanging hook (34). 8. A pickling steel pipe treatment hot water pool and treatment process according to claim 7, characterized in that: the inner side of the hanging hook (34) is provided with an upper connecting ring (35), and the upper connecting ring (35) ) is fixed on the inner wall of the cleaning pool (2).