A steel drum coating flue gas treatment and recycling system

Abstract

The present invention provides a steel drum painting flue gas treatment and recycling system, which relates to the field of high-temperature flue gas treatment technology, including: a flue gas heat exchanger, an absorption tower, a decolorization tower, and a storage tank. The output end of the flue gas heat exchanger is connected to the absorption tower through a pipeline, the absorption tower is connected to the decolorization tower through a pipeline, and the decolorization tower is connected to the storage tank through a pipeline. While the flue gas is cooled by the water inside the flue gas heat exchange tube, the flue gas heats the water inside the flue gas heat exchange tube. The cooled flue gas is output through the pipeline of the flue gas exhaust end cover and enters the subsequent processing equipment for further cooling and purification. The water heated by the high-temperature flue gas enters the water tank for storage, which solves the problem of needing to enter the heat exchanger when cleaning the heat exchange tube, disassembling the internal tube body of the heat exchanger and soaking it in a detergent, during which the heat exchanger needs to be shut down for maintenance, and the heat exchanger tube disassembly and assembly steps are cumbersome, which is not conducive to efficient maintenance of the heat exchanger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-temperature flue gas treatment, and particularly relates to a steel drum coating flue gas treatment and recycling system. BACKGROUND

[0002] A large amount of high-temperature flue gas is generated in the process of steel drum coating. In order to reasonably utilize the high-temperature waste gas and reduce the impact of the high-temperature waste gas on the environment, devices such as a gas-gas heat exchanger, a gas-liquid heat exchanger and an absorption tower are often used to cool and remove impurities from the high-temperature toxic flue gas, and the flue gas is further purified by a flue gas purifier so that the flue gas can be discharged into the atmosphere after reaching the emission standard. The temperature of the flue gas can be reduced by the gas-gas heat exchanger and the gas-liquid heat exchanger, and the heat in the flue gas can be recovered and stored by gas and liquid, so as to utilize the heat again, reduce energy consumption and save production cost. The heat exchanger for high-temperature flue gas treatment in the prior art has the following disadvantages in use:

[0003] Due to long-term high-temperature operation, the deposition of impurities and scale in the water in the finned tube inside the heat exchanger can accelerate the plugging speed of the finned tube inside the heat exchanger, reduce the water storage capacity and increase the water flow resistance, thereby affecting the heat exchange efficiency of the heat exchanger. The heat exchanger tube needs to be cleaned regularly. When the heat exchanger tube is cleaned, the inside of the heat exchanger needs to be entered, the pipe body inside the heat exchanger needs to be disassembled and then soaked by a cleaning agent. In this process, the heat exchanger needs to be shut down for maintenance, and the disassembly and assembly steps of the heat exchanger pipeline are complicated, which is not conducive to the efficient maintenance of the heat exchanger. SUMMARY

[0004] The disclosed embodiments relate to a steel drum coating flue gas treatment and recycling system, so as to solve the problem that due to long-term high-temperature operation, the deposition of impurities and scale in the water in the finned tube inside the heat exchanger can accelerate the plugging speed of the finned tube inside the heat exchanger, reduce the water storage capacity and increase the water flow resistance, thereby affecting the heat exchange efficiency of the heat exchanger. The heat exchanger tube needs to be cleaned regularly. When the heat exchanger tube is cleaned, the inside of the heat exchanger needs to be entered, the pipe body inside the heat exchanger needs to be disassembled and then soaked by a cleaning agent. In this process, the heat exchanger needs to be shut down for maintenance, and the disassembly and assembly steps of the heat exchanger pipeline are complicated, which is not conducive to the efficient maintenance of the heat exchanger.

[0005] The first aspect of the present disclosure provides a steel drum painting fume treatment and recycling system, which specifically includes: a fume heat exchanger, an absorption tower, a decolorization tower, and a storage tank. The output end of the fume heat exchanger is connected to the absorption tower through a pipeline, the absorption tower is connected to the decolorization tower through a pipeline, and the decolorization tower is connected to the storage tank through a pipeline. The fume heat exchanger includes: a fume heat exchanger body, the upper and lower edges of the internal rear of the fume heat exchanger body are respectively fixedly connected with a main delivery pipe, a docking plug is fixedly connected to the left wall of the internal interior of the main delivery pipe, and a translation push plate is slidably connected to the docking plug, and a unit heat exchange tube group is movably connected to the inside of the fume heat exchanger body, and the unit heat exchange tube group is composed of a reflux heat exchange pipe, an input heat exchange pipe and a fume heat exchange pipe welded together, the reflux heat exchange pipe and the input heat exchange pipe are parallel to each other, and the reflux heat exchange pipe is parallel to the input heat exchange pipe. A flue gas heat exchange pipe is installed between the heat exchange pipe and the input heat exchange pipe, and the right ends of the return heat exchange pipe and the input heat exchange pipe are respectively connected to the two groups of main delivery pipes. A longitudinal limit socket is longitudinally penetrated through the left edge of the upper surface of the flue gas heat exchanger body, and a heat exchange pipe group locking plate is slidably connected in the longitudinal limit socket. A water tank is fixedly connected to the top of the flue gas heat exchanger body, and an input pipe is fixedly connected to the front of the flue gas heat exchanger body. The input pipe is connected to the main delivery pipe located below, and an output pipe is fixedly connected to the top of the water tank. The water tank is connected to the main delivery pipe above through a pipe. The left end of the flue gas heat exchanger body is connected to the flue gas inlet end cover by bolts, and a pipe is provided in the middle of the smoke gas inlet end cover. The right end of the flue gas heat exchanger body is connected to the smoke gas exhaust end cover by bolts, and a pipe is provided in the middle of the smoke exhaust end cover.

[0006] Preferably, a roller support plate is fixedly connected to the lower surface of the inner part of the flue gas heat exchanger body, and a balancing roller is rotatably connected to the roller support plate through a bearing. The outer edges of the balancing roller are provided with roller outer edges at both ends, and the balancing roller is rollingly connected to the lower surface of the input heat exchange pipe.

[0007] Preferably, the internal upper surface of the flue gas heat exchanger body is connected with a balancing connecting plate by bolts, and the front edge and the rear edge of the lower surface of the balancing connecting plate are rotatably connected with the limiting support wheels respectively, the wheel axle of the limiting support wheel is perpendicular to the lower surface of the balancing connecting plate, and the lower edge of the outer wheel surface of the limiting support wheel is protruding with a support wheel limiting lower edge, and the limiting support wheel is rollingly connected to the side of the reflux heat exchange pipe.

[0008] Preferably, the main delivery pipe is a pipe body with a rectangular cross section, and a pipe socket with a rectangular structure is opened through the left wall of the main delivery pipe, and the pipe socket is movably connected to the right end of the heat exchange pipe.

[0009] Preferably, the right wall of the delivery main pipe is fixedly connected with a pipe guide rod, the pipe guide rod is perpendicular to the right wall of the delivery main pipe, a sealing push spring is sleeved on the pipe guide rod, the right end of the sealing push spring is fixedly connected with the right surface of the delivery main pipe, and the left end of the sealing push spring is fixedly connected with the translation push plate.

[0010] Preferably, the docking sleeve is a rectangular tube, and the docking sleeve is docked at the opening right end of the pipe socket.

[0011] Preferably, the translation push plate is provided with a push plate guide hole penetrating through the left and right sides, the push plate guide hole is slidably connected with the pipe guide rod, and the left surface of the translation push plate is fixedly connected with a pushing top pipe.

[0012] Preferably, the pushing top pipe is movably inserted into the right end of the docking sleeve, and the left edge of the pushing top pipe is provided with a top pipe opening.

[0013] Preferably, the right surface of the heat exchange pipe group locking plate is attached to the left end surface of the return flow heat exchange pipe, the right surface of the heat exchange pipe group locking plate is fixedly connected with a locking plate limiting protrusion, and the upper end of the heat exchange pipe group locking plate is bent leftwards to form a locking plate push plate.

[0014] Preferably, the lower surface of the locking plate push plate is fixedly connected with a locking plate reset tension spring, and the lower end of the locking plate reset tension spring is fixedly connected to the upper surface of the flue gas heat exchanger body.

[0015] The present application provides a steel drum coating flue gas treatment and recycling system, which has the following beneficial effects:

[0016] 1. The heat exchanger built-in pipe in the present application is composed of multiple unit heat exchange pipe groups, the multiple unit heat exchange pipe groups are connected with two delivery main pipes, the heat exchange medium is delivered to the heat exchanger pipe through the two delivery main pipes, under normal conditions, the high-temperature flue gas enters the flue gas heat exchanger body through the pipe of the flue gas inlet end cover, exchanges heat with the flue gas heat exchange pipe, and the water in the flue gas heat exchange pipe is cooled at the same time, the flue gas is heated to heat the water in the flue gas heat exchange pipe, the flue gas after cooling treatment is output through the pipe of the flue gas discharge end cover and enters the subsequent treatment equipment for further cooling and purification treatment, and the water heated by the high-temperature flue gas is stored in the water tank to store the heat in the flue gas and reduce the waste of heat.

[0017] 2. The unit heat exchange pipe group is movably connected with the flue gas heat exchanger body, and is inserted with the heat exchange connecting pipe and the connecting pipe spout to realize the butt joint of the unit heat exchange pipe group and the conveying main connecting pipe. In normal state, the heat exchange pipe group locking plate is located at the left end of the return flow heat exchange connecting pipe, and limits the unit heat exchange pipe group to avoid the unit heat exchange pipe group sliding to the left under the action of external force. When the heat exchange pipe is cleaned, the heat exchange pipe group locking plate is pushed upward to separate the heat exchange pipe group locking plate from the left end surface of the return flow heat exchange connecting pipe, and the unit heat exchange pipe group is pulled out to the left as a whole to complete the disassembly. The balance roller and the limiting support wheel are arranged to reduce the moving resistance of the unit heat exchange pipe group and keep appropriate spacing between adjacent unit heat exchange pipe groups. The unit heat exchange pipe group is quickly disassembled and installed, which is beneficial to improve the cleaning efficiency of the pipeline and the maintenance efficiency of the equipment, and ensures that the heat exchanger has high flue gas treatment and heat exchange effect.

[0018] 3. The conveying main connecting pipe is internally provided with a butt joint spout and a translation push plate. In normal state, the translation push plate is applied with left pushing force by the sealing push spring. In the butt joint state of the heat exchange connecting pipe and the conveying main connecting pipe, the right end of the heat exchange connecting pipe is in contact with the pushing top pipe, the pushing top pipe is pushed to the right, the top pipe connecting port is located outside the butt joint spout, and the medium in the conveying main connecting pipe can enter the heat exchange pipe group locking plate through the top pipe connecting port and the butt joint spout. When the unit heat exchange pipe group is removed, the translation push plate moves to the left under the action of the sealing push spring, the pushing top pipe is inserted into the butt joint spout, the top pipe connecting port enters the butt joint spout, the connection channel of the conveying main connecting pipe and the butt joint spout is closed, the leakage of the medium in the conveying main connecting pipe through the connecting pipe spout is avoided, the heat exchanger can work normally in the state that part of the unit heat exchange pipe groups are cleaned, and the continuous treatment of the flue gas is ensured without shutdown maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present application, and are not limited to the present application.

[0021] In the drawings:

[0022] Figure 1 The schematic diagram of the flue gas treatment and recycling system of the present application is shown;

[0023] Figure 2 The schematic diagram of the overall structure of the present application is shown;

[0024] Figure 3 The schematic diagram of the front view of the present application is shown;

[0025] Figure 4 The schematic diagram of the structure of the present application in the disassembled state is shown;

[0026] Figure 5 The structural schematic diagram of the flue gas heat exchange pipe of the present application is shown;

[0027] Figure 6 The structural schematic diagram of the unit heat exchange pipe group of the present application is shown in the state of being pulled out;

[0028] Figure 7 The structural schematic diagram of the balance connecting plate of the present application is shown;

[0029] Figure 8 The structural schematic diagram of the delivery main pipe and the input heat exchange pipe of the present application is shown in the state of being docked;

[0030] Figure 9 The structural schematic diagram of the inside of the delivery main pipe of the present application is shown;

[0031] Figure 10 The structural schematic diagram of the heat exchange pipe group lock plate of the present application is shown;

[0032] Figure 11 The structural schematic diagram of the part A of the present application is shown in the state of being enlarged; Figure 4

[0033] Figure 12 The structural schematic diagram of the part B of the present application is shown in the state of being enlarged; Figure 6

[0034] The structural schematic diagram of the part C of the present application is shown in the state of being enlarged; Figure 13 Figure 7 The structural schematic diagram of the part D of the present application is shown in the state of being enlarged.

[0035] Figure 14 A list of reference signs Figure 8

[0036] 1, flue gas heat exchanger main body; 101, longitudinal limiting socket; 102, roller support plate; 103, balance roller; 104, roller outer edge; 105, balance connecting plate; 106, limiting support wheel; 107, support wheel limiting lower edge;

[0037] 2, delivery main pipe; 201, pipe socket; 202, pipe guide rod; 203, sealing push spring;

[0038] 3, docking plug;

[0039] 4, translation push plate; 401, push plate guide hole; 402, push top pipe; 403, top pipe connecting port;

[0040] 4, translation push plate; 401, push plate guide hole; 402, push top pipe; 403, top pipe connecting port;

[0041] ​​​5, unit heat exchange pipe group; 501, backflow heat exchange connecting pipe; 502, input heat exchange connecting pipe; 503, flue gas heat exchange pipe;

[0042] 6, heat exchange pipe group locking plate; 601, locking plate limiting bump; 602, locking plate push plate; 603, locking plate reset tension spring;

[0043] 7, water tank;

[0044] 8, input pipe;

[0045] 9, output pipe;

[0046] 10, flue gas inlet end cover;

[0047] 11, flue gas outlet end cover. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0049] Embodiment one:

[0050] Please refer to Figures 1 to 14 :

[0051] The application provides a steel drum coating flue gas treatment and recycling system, which comprises a flue gas heat exchanger, an absorption tower, a decoloring tower and a storage tank, the output end of the flue gas heat exchanger is connected with the absorption tower through a pipeline, the absorption tower is connected with the decoloring tower through a pipeline, the decoloring tower is connected with the storage tank through a pipeline, and the flue gas heat exchanger further comprises a flue gas heat exchanger main body 1, one conveying total connector 2 is fixedly connected to the upper edge and the lower edge of the rear inside of the flue gas heat exchanger main body 1, a butt plug 3 is fixedly connected to the left wall of the inside of the conveying total connector 2, a translation push plate 4 is slidably connected to the butt plug 3, a unit heat exchange pipe group 5 is movably connected to the inside of the flue gas heat exchanger main body 1, the unit heat exchange pipe group 5 is composed of a backflow heat exchange connector 501, an input heat exchange connector 502 and a flue gas heat exchange pipe 503, the backflow heat exchange connector 501 and the input heat exchange connector 502 are parallel to each other, the flue gas heat exchange pipe 503 is arranged between the backflow heat exchange connector 501 and the input heat exchange connector 502, the right ends of the backflow heat exchange connector 501 and the input heat exchange connector 502 are respectively connected with two groups of conveying total connectors 2, the butt plug 3 is a rectangular pipe, the butt plug 3 is connected to the opening right end of a connector spout 201, in a normal state, the right end of the heat exchange connector is inserted into the inside of the butt plug 3, a longitudinal limiting spout 101 is longitudinally and penetratively arranged on the left edge of the upper surface of the flue gas heat exchanger main body 1, a heat exchange pipe group locking plate 6 is slidably connected to the longitudinal limiting spout 101, a water tank 7 is fixedly connected to the upper side of the flue gas heat exchanger main body 1, an input pipe 8 is fixedly connected to the front side of the flue gas heat exchanger main body 1, the input pipe 8 is connected with the conveying total connector 2 arranged below, an output pipe 9 is fixedly connected to the upper side of the water tank 7, the water tank 7 is communicated with the conveying total connector 2 arranged above through a pipeline, a flue gas inlet end cover 10 is connected to the left end of the flue gas heat exchanger main body 1 through bolts, a pipeline is arranged in the middle of the flue gas inlet end cover 10, a flue gas outlet end cover 11 is connected to the right end of the flue gas heat exchanger main body 1 through bolts, a pipeline is arranged in the middle of the flue gas outlet end cover 11, the flue gas treated by the flue gas heat exchanger is treated again by the absorption tower and the decoloring tower and stored in the storage tank.

[0052] In the embodiment of the present disclosure, the lower surface of the flue gas heat exchanger main body 1 is fixedly connected with a roller support plate 102, the roller support plate 102 is rotatably connected with a balance roller 103 through a bearing, the outer surface of the balance roller 103 is provided with a roller outer edge 104 at both end edges, the balance roller 103 is rollingly connected with the lower surface of the input heat exchange connector 502, and the roller outer edge 104 is in contact with the side edge of the input heat exchange connector 502, which plays a guiding role for the lower part of the unit heat exchange pipe group 5 and facilitates the movement of the unit heat exchange pipe group 5.

[0053] In the embodiment of the present disclosure, the upper surface inside the flue gas heat exchanger body 1 is connected with a balance connecting plate 105 through bolts, the lower surface front edge and rear edge of the balance connecting plate 105 are respectively rotationally connected with a limiting support wheel 106, the wheel shaft of the limiting support wheel 106 is perpendicular to the lower surface of the balance connecting plate 105, the outer wheel surface lower edge position of the limiting support wheel 106 is protrudingly provided with a support wheel limiting lower edge 107, the limiting support wheel 106 is rollingly connected with the side surface of the backflow heat exchange connecting pipe 501, the support wheel limiting lower edge 107 is attached to the lower surface edge of the backflow heat exchange connecting pipe 501, plays a guiding role, avoids the inclination of the unit heat exchange pipe group 5, through the action of the two rolling bodies above and below the unit heat exchange pipe group 5, the resistance and noise of the unit heat exchange pipe group 5 in the process of linear movement inside the flue gas heat exchanger body 1 can be reduced, and the dismounting and installation efficiency of the unit heat exchange pipe group 5 is improved.

[0054] In the embodiment of the present disclosure, the conveying total connecting pipe 2 is a pipe body with a rectangular cross section, a rectangular structure connecting pipe socket 201 is provided on the left wall of the conveying total connecting pipe 2, and the right end of the heat exchange connecting pipe is movably inserted into the connecting pipe socket 201; a connecting pipe guide rod 202 is fixedly connected to the right wall inside the conveying total connecting pipe 2, the connecting pipe guide rod 202 is perpendicular to the right wall of the conveying total connecting pipe 2, a sealing push spring 203 is sleeved on the connecting pipe guide rod 202, the right end of the sealing push spring 203 is fixedly connected to the right surface inside the conveying total connecting pipe 2, and the left end of the sealing push spring 203 is fixedly connected to the translation push plate 4; in the normal state, the right end of the heat exchange connecting pipe is inserted into the connecting pipe socket 201, the unit heat exchange pipe group 5 is connected with the space inside the conveying total connecting pipe 2, and the medium inside the conveying total connecting pipe 2 can enter the unit heat exchange pipe group 5 to participate in heat exchange.

[0055] In the embodiment of the present disclosure, the push plate 4 is provided with a push plate guide hole 401 on the left and right, the push plate guide hole 401 is slidably connected with the pipe guide rod 202, and the left surface of the push plate 4 is fixedly connected with a pushing top pipe 402; the pushing top pipe 402 is movably inserted into the right end of the butt joint socket 3, and the left edge of the pushing top pipe 402 is provided with a top pipe connecting port 403; when the heat exchange pipe is inserted into the inside of the delivery main pipe 2, the push plate 4 is dragged by the sealing push spring 203 to apply a pushing force to the left, so that the left end surface of the pushing top pipe 402 is tightly combined with the right end surface of the heat exchange pipe, and at the same time, due to the limiting action of the heat exchange pipe, the pushing top pipe 402 cannot be completely inserted into the inside of the butt joint socket 3, the top pipe connecting port 403 is located on the right side of the butt joint socket 3, and in this state, the medium in the inside of the delivery main pipe 2 can enter the unit heat exchange pipe group 5 through the top pipe connecting port 403, and when the single unit heat exchange pipe group 5 is removed, the push plate 4 is moved to the left under the action of the sealing push spring 203, so that the pushing top pipe 402 is inserted into the inside of the butt joint socket 3, and the top pipe connecting port 403 enters the inside of the butt joint socket 3, so that the connection channel of the delivery main pipe 2 and the butt joint socket 3 is closed, avoiding the leakage of the medium in the inside of the delivery main pipe 2 through the pipe connecting port 201, so that the heat exchanger can still work normally in the state that a part of the unit heat exchange pipe group 5 is missing when cleaning the part of the unit heat exchange pipe group 5, and maintenance is not required.

[0056] In the embodiment two, on the basis of the embodiment one, the right surface of the heat exchange pipe group locking plate 6 is combined with the left end surface of the backflow heat exchange pipe 501, the right surface of the heat exchange pipe group locking plate 6 is fixedly connected with a locking plate limiting protrusion 601, the upper end of the heat exchange pipe group locking plate 6 is bent to the left to process a locking plate push plate 602, the lower surface of the locking plate push plate 602 is fixedly connected with a locking plate reset tension spring 603, and the lower end of the locking plate reset tension spring 603 is fixedly connected to the upper surface of the flue gas heat exchanger main body 1; in the normal state, the heat exchange pipe group locking plate 6 is located at the left end of the backflow heat exchange pipe 501 to limit the unit heat exchange pipe group 5, so as to avoid that the unit heat exchange pipe group 5 slides to the left under the action of an external force; when the heat exchange pipe is cleaned, the heat exchange pipe group locking plate 6 can be pushed upward to separate the heat exchange pipe group locking plate 6 from the left end surface of the backflow heat exchange pipe 501, and the unit heat exchange pipe group 5 can be pulled out to the left as a whole to complete the disassembly, so as to improve the disassembly and installation efficiency of the unit heat exchange pipe group 5 and improve the maintenance efficiency of the equipment.

[0057] The working principle of the embodiment is as follows: first, the high-temperature flue gas is transported into the inside of the flue gas heat exchanger main body 1 through the pipeline of the flue gas inlet end cover 10, the normal-temperature water or the water in the water tank 7 is pumped into the input pipe 8 by a water pump, the water enters the inside of the delivery total pipe 2 below, the water enters the input heat exchange pipe 502 through the top pipe connecting port 403 and slowly flows upwards along the flue gas heat exchange pipe 503, the high-temperature flue gas exchanges heat with the flue gas heat exchange pipe 503, the water in the flue gas heat exchange pipe 503 reduces the temperature of the flue gas at the same time that the flue gas heats the water in the flue gas heat exchange pipe 503, the flue gas after the temperature reduction treatment is output through the pipeline of the flue gas discharge end cover 11 and enters the equipment for further temperature reduction and purification treatment, the water heated by the high-temperature flue gas is stored in the water tank 7, so that the waste of heat is reduced, when the unit heat exchange pipe group 5 is cleaned and maintained, the flue gas inlet end cover 10 is disassembled, the heat exchange pipe group locking plate 6 is pushed upwards, the heat exchange pipe group locking plate 6 is separated from the left end surface of the backflow heat exchange pipe 501, the unit heat exchange pipe group 5 is integrally pulled out to the left for disassembly, when the unit heat exchange pipe group 5 is removed, the translation push plate 4 moves to the left under the action of the sealing push spring 203, the push top pipe 402 is inserted into the inside of the butt joint plug cylinder 3, the top pipe connecting port 403 enters the inside of the butt joint plug cylinder 3, the connection channel of the delivery total pipe 2 and the butt joint plug cylinder 3 is closed, the leakage of the medium in the delivery total pipe 2 through the pipe connecting port 201 is avoided, the heat exchanger can still work normally in the state that part of the unit heat exchange pipe group 5 is missing, the operation of the equipment does not need to be paused, and the continuous treatment of the flue gas is ensured.

[0058] In this paper, the following points need to be noted:

[0059] 1. The drawings of the embodiments of the disclosure only relate to the structures involved in the embodiments of the disclosure, and other structures can refer to the general design.

[0060] 2. In the case of no conflict, the embodiments of the disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0061] The above is only a specific implementation of the disclosure, but the protection scope of the disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the disclosure, which should be covered within the protection scope of the disclosure. Therefore, the protection scope of the disclosure should be subject to the protection scope of the claims.

Claims

1. A steel drum painting fume treatment and recycling system, comprising: A flue gas heat exchanger, an absorption tower, a decolorization tower, and a storage tank. The output end of the flue gas heat exchanger is connected to the absorption tower via a pipeline, the absorption tower is connected to the decolorization tower via a pipeline, and the decolorization tower is connected to the storage tank via a pipeline. The flue gas heat exchanger further comprises: A flue gas heat exchanger body (1), wherein the upper and lower edges of the rear interior of the flue gas heat exchanger body (1) are respectively fixedly connected to a main delivery pipe (2), a docking plug (3) is fixedly connected to the left wall of the interior of the main delivery pipe (2), a translation push plate (4) is slidably connected to the docking plug (3), and a unit heat exchange tube group (5) is movably connected to the interior of the flue gas heat exchanger body (1); The unit heat exchange pipe group (5) is composed of a reflux heat exchange pipe (501), an input heat exchange pipe (502) and a flue gas heat exchange pipe (503) welded together. The reflux heat exchange pipe (501) and the input heat exchange pipe (502) are parallel to each other. A flue gas heat exchange pipe (503) is installed between the reflux heat exchange pipe (501) and the input heat exchange pipe (502). The right ends of the reflux heat exchange pipe (501) and the input heat exchange pipe (502) are respectively connected to the two groups of main delivery pipes (2). A longitudinal limiting socket (101) is longitudinally penetrated through the left edge of the upper surface of the flue gas heat exchanger body (1), and a heat exchange tube group locking plate (6) is slidably connected in the longitudinal limiting socket (101). A water tank (7) is fixedly connected above the flue gas heat exchanger body (1), and an input pipe (8) is fixedly connected to the front of the flue gas heat exchanger body (1). The input pipe (8) is connected to the main delivery pipe (2) located below, and an output pipe (9) is fixedly connected above the water tank (7). The water tank (7) is connected to the upper delivery main pipe (2) through a pipeline. The left end of the flue gas heat exchanger body (1) is connected to a flue gas inlet end cover (10) through bolts. A pipeline is provided in the middle of the flue gas inlet end cover (10). The right end of the flue gas heat exchanger body (1) is connected to a flue gas outlet end cover (11) through bolts. A pipeline is provided in the middle of the flue gas outlet end cover (11).

2. The steel drum painting fume treatment and recycling system according to claim 1 is characterized in that: A roller support plate (102) is fixedly connected to the lower surface of the interior of the flue gas heat exchanger body (1); a balancing roller (103) is rotatably connected to the roller support plate (102) via a bearing; roller outer edges (104) are protruding from both ends of the outer surface of the balancing roller (103); and the balancing roller (103) is rollingly connected to the lower surface of the input heat exchange pipe (502).

3. The steel drum painting fume treatment and recycling system according to claim 2 is characterized in that: The internal upper surface of the flue gas heat exchanger body (1) is connected to a balancing connecting plate (105) by bolts, and the front edge and the rear edge of the lower surface of the balancing connecting plate (105) are respectively rotatably connected to the limiting support wheel (106), the wheel axle of the limiting support wheel (106) is perpendicular to the lower surface of the balancing connecting plate (105), and the lower edge of the outer wheel surface of the limiting support wheel (106) is protrudingly provided with a support wheel limiting lower edge (107), and the limiting support wheel (106) is rollingly connected to the side of the reflux heat exchange pipe (501).

4. The steel drum painting fume treatment and recycling system according to claim 1 is characterized in that: The main delivery pipe (2) is a pipe body with a rectangular cross section. A pipe socket (201) with a rectangular structure is provided through the left wall of the main delivery pipe (2). The pipe socket (201) is movably connected to the right end of the heat exchange pipe.

5. The steel drum painting fume treatment and recycling system according to claim 1 is characterized in that: A pipe guide rod (202) is fixedly connected to the right wall of the interior of the conveying main pipe (2), and the pipe guide rod (202) is perpendicular to the right wall of the conveying main pipe (2). A sealing push spring (203) is sleeved on the pipe guide rod (202), and the right end of the sealing push spring (203) is fixedly connected to the right surface of the interior of the conveying main pipe (2), and the left end of the sealing push spring (203) is fixedly connected to the translation push plate (4).

6. The steel drum painting fume treatment and recycling system according to claim 4 is characterized in that: The docking plug-in sleeve (3) is a rectangular tube, and the docking plug-in sleeve (3) is docked at the right end of the opening of the pipe socket (201).

7. The steel drum painting fume treatment and recycling system according to claim 5 is characterized in that: The translation push plate (4) is provided with push plate guide holes (401) on the left and right sides, the push plate guide holes (401) are slidably connected to the pipe guide rod (202), and a push-up pipe (402) is fixedly connected to the left surface of the translation push plate (4).

8. The steel drum painting fume treatment and recycling system according to claim 7 is characterized in that: The pushing jacking pipe (402) is movably plugged into the right end of the docking plug (3), and a jacking pipe connection opening (403) is provided on the left edge of the pushing jacking pipe (402).

9. The steel drum painting fume treatment and recycling system according to claim 1 is characterized in that: The right surface of the heat exchange tube group locking plate (6) is fitted with the left end surface of the reflux heat exchange pipe (501), the right surface of the heat exchange tube group locking plate (6) is fixedly connected with a locking plate limiting protrusion (601), and the upper end of the heat exchange tube group locking plate (6) is bent to the left and processed with a locking plate push plate (602).

10. The steel drum painting fume treatment and recycling system according to claim 9, characterized in that: The lower surface of the lock plate push plate (602) is fixedly connected to a lock plate reset tension spring (603), and the lower end of the lock plate reset tension spring (603) is fixedly connected to the upper surface of the flue gas heat exchanger body (1).

Images