A printing and dyeing waste gas treatment device with heat recovery and utilization

Abstract

The present invention discloses a printing and dyeing waste gas treatment device with heat recovery and utilization in the technical field of waste gas recovery, including a recovery unit, which includes a box body located outside, a containing component arranged on one side inside the box body, a large spiral heat release pipe spirally wound inside the containing component, a small spiral heat release pipe vertically arranged at the central position of the large spiral heat release pipe, and the end of the small spiral heat release pipe extends outside the containing component, and a switching component arranged at the end of the large spiral heat release pipe, and the other end of the small spiral heat release pipe is connected to one side of the switching component, and at the same time, one end of the side of the switching component extends outside the containing component. The present invention recovers and utilizes the heat in the waste gas generated by printing and dyeing by setting a recovery unit, and performs double recovery operations on the waste gas heat through the large spiral heat release pipe and the small spiral heat release pipe inside the recovery unit, which can ensure that the heat inside the waste gas can be fully recovered and effectively avoid the generation of energy waste phenomena.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas recovery, and particularly to a printing and dyeing waste gas treatment device with heat recovery and utilization. Background Art

[0002] In the textile industry, the printing and dyeing stenter is a main processing equipment and also one of the energy-consuming equipment. It is a device that dries and shapes fabrics by using heated air. Generally, the hot air temperature required by the stenter is about 200°C, and the exhaust gas temperature of the stenter is also about 170°C, containing rich heat energy.

[0003] Currently, in the textile industry, the waste gas generated by printing and dyeing is usually directly discharged. This direct discharge method greatly wastes the heat energy existing in the waste gas. Therefore, how to recover and make full use of the heat energy in the waste gas is an urgent problem to be solved at present. At the same time, the waste gas is mainly composed of harmful gases such as hydrogen sulfide, carbon disulfide, and sulfur dioxide. When discharging, it needs to be filtered and purified through a filter element made of materials such as activated carbon before being discharged into the air. After a long time of purification and adsorption work, the filter element needs to be replaced or cleaned. The existing measure is to remove the filter element from the equipment for cleaning or replacement. The whole process requires the equipment to be shut down for operation, which is time-consuming and laborious, and the shutdown operation seriously delays the work efficiency. Summary of the Invention

[0004] In view of the above problems existing in the existing printing and dyeing waste gas treatment device with heat recovery and utilization, the inventor hereby proposes a printing and dyeing waste gas treatment device with heat recovery and utilization to solve such problems.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A printing and dyeing waste gas treatment device with heat recovery and utilization, including,

[0006] A recovery unit, including a box body located outside, a receiving component arranged on one side inside the box body, a large spiral heat release tube spirally wound inside the receiving component, a small spiral heat release tube vertically arranged at the central position of the large spiral heat release tube, and the end of the small spiral heat release tube extends outside the receiving component, and a switching component arranged at the end of the large spiral heat release tube, and the other end of the small spiral heat release tube is connected to one side of the switching component, and one end of the side of the switching component extends outside the receiving component;

[0007] The filtering unit includes a first fixing part fixedly arranged on the outer side of the accommodating part, a second fixing part symmetrically arranged with the first fixing part, a pallet located between the second fixing part and the first fixing part, and the pallet is in the shape of a half-cylindrical sheet, a connecting part horizontally inserted on the upper side of the first fixing part, and the switching part and the end of the small spiral heat release tube are communicated with the connecting part, and a filtering part horizontally arranged between the second fixing part and the first fixing part, and the pallet supports under the filtering part; and,

[0008] The switching unit includes a fixing part horizontally arranged at the position of the second fixing part, a pushing part horizontally inserted in the fixing part, and the outer end of the pushing part extends outward to the outside of the second fixing part, a transfer part slidably connected in the fixing part, and the top end of the transfer part abuts against the end of the pushing part, a hexagonal prism horizontally inserted at the axial center position of the transfer part, and both ends of the hexagonal prism extend outward into the second fixing part and the filtering part respectively, and a return spring sleeved on the hexagonal prism, and one end of the return spring abuts against the bottom of the transfer part.

[0009] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention, wherein: the accommodating part includes a water tank located in the box body, a water trough opened inside the water tank, and both the large spiral heat release tube and the small spiral heat release tube are arranged in the water trough, and a water outlet pipe connected to the end of the water trough, and one end of the water outlet pipe extends to the outside of the box body.

[0010] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention, wherein: the switching part includes a three-way joint connected to one end of the small spiral heat release tube, a communication groove opened inside the three-way joint, a first communication pipe connected between the three-way joint and the end of the large spiral heat release tube, a second communication pipe arranged on one side of the three-way joint, and the second communication pipe is communicated with the connecting part, a conversion block arranged in the communication groove, a limiting ring arranged in the first communication pipe, and an expansion medium arranged between the limiting ring and the first communication pipe, a Z-shaped channel in a Z-shaped structure is opened inside the conversion block, a top communication port communicated with the first communication pipe is opened at the top of the Z-shaped structure, a lower communication port is opened at the outer side of the lower end, and an upper communication port is opened at the outer side of the upper end.

[0011] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention, wherein: the first fixing part includes a left fixing disk with an inward depression on the outside, and one end of the filtering part extends into the outer depression of the left fixing disk, and filtering holes and discharge ports symmetrically opened on the left fixing disk and symmetrically arranged up and down, and the outer end of the connecting part is installed in the discharge port.

[0012] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization described in the present invention, the second fixed component includes a right fixed plate covering the outer end of the filter component, an exhaust hole opened on the upper inside of the right fixed plate, an exhaust pipe connected to the outside of the exhaust hole, and the exhaust pipe extends upward to the outside of the box body, a clearance opening opened below the right fixed plate, a T-shaped push plate laterally inserted into the clearance opening, a fixed pipe laterally arranged outside the center position of the right fixed plate, and an installation groove opened inside the fixed pipe, and the switching unit is installed in the installation groove.

[0013] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization described in the present invention, the connecting component includes a connecting pipe located in the discharge port, and an upper connecting pipe and a lower connecting pipe symmetrically arranged on the upper and lower sides of the connecting pipe, and the upper connecting pipe and the lower connecting pipe are respectively connected to the switching component and the small spiral heat release pipe.

[0014] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery and utilization described in the present invention, wherein: the filter component includes a filter bin located between the left fixed disk and the right fixed disk, and the two ends of the filter bin extend into the left fixed disk and the right fixed disk respectively, four groups of filter element compartments are equally divided and horizontally opened on the filter bin, and each group of filter element compartments is provided with a filter element, and a hexagonal groove is horizontally opened at the axial position of the filter bin, and one end of the hexagonal column is matched and inserted in the hexagonal groove.

[0015] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery described in the present invention, wherein: the fixed component includes four groups of equally divided and surrounded limiting arc plates, and the four groups of limiting arc plates are laterally fixed in the installation groove, a limiting slide groove is located between every two groups of limiting arc plates, and a guide edge is opened at the top of the limiting arc plate, and the guide edge is set at an inclined angle.

[0016] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery described in the present invention, the pushing component includes a push tube slidably connected between four groups of limiting arc plates, multiple groups of latch teeth equally arranged around the outer end of the push tube, and both sides of each group of latch teeth are inclined outward, four groups of limiting blocks equally arranged around the outer wall of the push tube, and the limiting blocks extend outward into the limiting slide groove, a push rod laterally fixedly connected to the other end of the push tube, and a pressure plate fixedly connected to the outer end of the push rod.

[0017] As a preferred solution of the printing and dyeing waste gas treatment equipment with heat recovery described in the present invention, wherein: the adapter component includes an adapter block located between four groups of limiting arc plates, four groups of guide blocks equally divided and arranged on the outer wall of the adapter block, and the top of the guide block is arranged at an inclined angle, and a hexagonal slot is transversely opened at the axial position of the adapter block, and the hexagonal column is transversely inserted in the hexagonal slot, the guide block extends outward into the limiting slide groove, and the top of the guide block abuts on the latch tooth.

[0018] Beneficial effects of the present invention:

[0019] 1. By setting up a recovery unit to recycle the heat in the waste gas generated by printing and dyeing, and by using the large spiral heat release tube and the small spiral heat release tube inside the recovery unit to perform dual recovery operations on the waste gas heat, it can ensure that the heat inside the waste gas can be fully recovered, effectively avoiding the waste of energy.

[0020] 2. By setting the filter unit to filter the exhaust gas after absorbing the heat, it can avoid the exhaust gas with heat to damage the filter element, and at the same time avoid the filter element to consume extra heat in the exhaust gas, so as to ensure the full utilization of heat. At the same time, the switching unit is set to be used in conjunction with the filter unit, so that the filter element can be replaced without stopping the machine, thereby significantly improving the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0023] Figure 2 It is a schematic diagram of the internal structure of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0024] Figure 3 It is a schematic structural diagram of the switching components of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0025] Figure 4 It is a schematic structural diagram of a filter unit of a printing and dyeing waste gas treatment device with heat recovery and utilization according to the present invention.

[0026] Figure 5 It is a schematic diagram of the structural decomposition of the filter unit of the printing and dyeing waste gas treatment equipment with heat recovery and utilization of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the second fixed component of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0028] Figure 7 It is a structural schematic diagram of a switching unit of a printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0029] Figure 8 It is a schematic diagram of the structural decomposition of the switching unit of the printing and dyeing waste gas treatment equipment with heat recovery and utilization according to the present invention.

[0030] Figure 9 It is a schematic diagram of the initial state structure of the switching unit of the printing and dyeing waste gas treatment equipment with heat recovery and utilization of the present invention.

[0031] Figure 10 It is a schematic diagram of the pressing state structure of the switching unit of the printing and dyeing waste gas treatment equipment with heat recovery and utilization of the present invention.

[0032] Reference numerals: 100, recovery unit; 101, box; 102, containing component; 1021, water tank; 1022, water tank; 1023, water outlet pipe; 103, large spiral heat release pipe; 104, small spiral heat release pipe; 105, switching component; 1051, three-way joint; 1052, connecting groove; 1053, first connecting pipe; 1054, second connecting pipe; 1055, conversion block; 1056, limiting ring; 1057, expansion medium; 1058, Z-shaped channel; 1059, top connecting port; 10510, lower connecting port; 10511, upper connecting port; 200, filtering unit; 201, first fixing component; 2011, left fixing plate; 2012, filtering hole; 2013, discharge port; 202, second fixing component; 2021, right fixing plate; 2022, exhaust hole; 2 023, exhaust pipe; 2024, clearance port; 2025, T-shaped push plate; 2026, fixed pipe; 2027, installation groove; 203, support plate; 204, connecting component; 2041, connecting pipe; 2042, upper connecting pipe; 2043, lower connecting pipe; 205, filter component; 2051, filter compartment; 2052, filter element compartment; 2053, hexagonal groove; 300, switching unit; 301 , fixing parts; 3011, limiting arc plate; 3012, limiting slide groove; 3013, guiding edge; 302, pushing parts; 3021, pushing tube; 3022, latching teeth; 3023, limiting block; 3024, pushing rod; 3025, pressing plate; 303, adapter parts; 3031, adapter block; 3032, guiding block; 3033, hexagonal slot; 304, hexagonal column; 305, reset spring. DETAILED DESCRIPTION

[0033] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings of the specification.

[0034] In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Persons skilled in the art may make similar generalizations without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Embodiment

[0036] Referring to Figures 1 to 10 , an embodiment of the present invention includes a printing and dyeing waste gas treatment device with heat recovery and utilization, including

[0037] A recovery unit 100 includes a box body 101 located outside, a receiving component 102 disposed on one side inside the box body 101, a large spiral heat release tube 103 spirally wound inside the receiving component 102, a small spiral heat release tube 104 vertically disposed at the central position of the large spiral heat release tube 103, and the end of the small spiral heat release tube 104 extends outside the receiving component 102. A switching component 105 is disposed at the end of the large spiral heat release tube 103, and the other end of the small spiral heat release tube 104 is connected to one side of the switching component 105. At the same time, one end of the side surface of the switching component 105 extends outside the receiving component 102;

[0038] A filtering unit 200 includes a first fixing component 201 fixedly disposed on one side outside the receiving component 102, a second fixing component 202 symmetrically disposed with the first fixing component 201, a support plate 203 located between the second fixing component 202 and the first fixing component 201, and the support plate 203 is in the shape of a semi-cylindrical sheet. A connecting component 204 is horizontally inserted into the upper side of the first fixing component 201, and the switching component 105 and the end of the small spiral heat release tube 104 are communicated with the connecting component 204. A filtering component 205 is horizontally disposed between the second fixing component 202 and the first fixing component 201, and the support plate 203 supports the filtering component 205 from below; and

[0039] The switching unit 300 includes a fixing component 301 which is laterally arranged at the position of the second fixing component 202, a pushing component 302 which is laterally inserted into the fixing component 301, and the outer end of the pushing component 302 extends outward to the outside of the second fixing component 202, a switching component 303 which is slidably connected to the fixing component 301, and the top of the switching component 303 abuts against the end of the pushing component 302, a hexagonal prism 304 which is laterally inserted into the axial position of the switching component 303, and the two ends of the hexagonal prism 304 extend outward to the second fixing component 202 and the filtering component 205 respectively, and a return spring 305 which is sleeved on the hexagonal prism 304, and one end of the return spring 305 abuts against the bottom of the switching component 303.

[0040] Among them, combined Figure 2 The accommodating component 102 includes a water tank 1021 located in the box body 101, a water tank 1022 opened inside the water tank 1021, and the large spiral heat release tube 103 and the small spiral heat release tube 104 are both arranged in the water tank 1022, and a water outlet pipe 1023 connected to the end of the water tank 1022, and one end of the water outlet pipe 1023 extends to the outside of the box body 101.

[0041] During use, a water inlet is provided at the top of the water tank 1021, and the outer end of the water inlet is connected to a water pump. When in use, the water tank 1022 is filled with water, and the heat in the exhaust gas is used to heat the water flow through the large spiral heat release tube 103 and the small spiral heat release tube 104, thereby realizing the recovery and utilization of the exhaust gas heat.

[0042] Further, combined with Figure 2 The large spiral heat release tube 103 is a spiral structure as a whole and is evenly distributed in the water tank 1022. The spiral structure can increase the contact area with the water flow in the water tank 1022, thereby releasing heat better and more fully and accelerating the heat recovery efficiency. The small spiral heat release tube 104 is erected at the winding center of the large spiral heat release tube 103, and can release the heat of the secondary circulating exhaust gas in the same way as the large spiral heat release tube 103.

[0043] Among them, combined Figure 3 The switching component 105 includes a three-way joint 1051 connected to one end of the small spiral heat release tube 104, a connecting groove 1052 opened inside the three-way joint 1051, a first connecting tube 1053 connected between the three-way joint 1051 and the end of the large spiral heat release tube 103, a second connecting tube 1054 arranged on one side of the three-way joint 1051, and the second connecting tube 1054 is connected to the connecting component 204, a conversion block 1055 arranged in the connecting groove 1052, a limiting ring 1056 arranged in the first connecting tube 1053, and an expansion medium 1057 arranged between the limiting ring 1056 and the first connecting tube 1053.

[0044] During use, the first connecting pipe 1053 is connected to the end of the large spiral heat-releasing pipe 103, and the second connecting pipe 1054 is connected to the filtering unit 200. The expansion medium 1057 is made of a spiral heat-absorbing material. When it receives a certain amount of heat, it will expand according to the principle of thermal expansion and contraction. After expansion, the expansion medium 1057 will increase its own area, and then push the conversion block 1055 at the other end of it, causing the conversion block 1055 to displace and slide in the connecting groove 1052. The limiting ring 1056 is of a circular ring structure and will not hinder the normal transportation and connection inside the first connecting pipe 1053.

[0045] Furthermore, in combination with Figure 3 , a Z-shaped channel 1058 with a Z-shaped structure is opened inside the conversion block 1055. At the top of the Z-shaped structure, a top connecting port 1059 connected to the first connecting pipe 1053 is opened. On the outer side of the lower end, a lower connecting port 10510 is opened, and on the outer side of the upper end, an upper connecting port 10511 is opened.

[0046] During use, in combination with Figure 3 , when the conversion block 1055 is not pushed by the expansion medium 1057, the lower connecting port 10510 remains connected to the second connecting pipe 1054, and the upper connecting port 10511 fits on the inner wall of the connecting groove 1052 and is not connected to the outside. At this time, the waste gas with a lower temperature after the large spiral heat-releasing pipe 103 absorbs heat can enter the Z-shaped channel 1058 through the first connecting pipe 1053 and the top connecting port 1059, and then be transported into the second connecting pipe 1054 through the lower connecting port 10510 on the side of the Z-shaped channel 1058, and finally be transported to the filtering unit 200 through the second connecting pipe 1054 for filtration; when there is still a large amount of heat energy in the waste gas transported by the large spiral heat-releasing pipe 103, the temperature of the waste gas is too high at this time, which will cause the expansion medium 1057 to expand due to heat, and then push the conversion block 1055 to move in the connecting groove 1052. At this time, the lower connecting port 10510 will be misaligned with the second connecting pipe 1054, so that the two are no longer connected, and the upper connecting port 10511 will be connected to the small spiral heat-releasing pipe 104. At this time, the waste gas with heat in the large spiral heat-releasing pipe 103 will be transported to the Z-shaped channel 1058 through the first connecting pipe 1053 and the top connecting port 1059, and then be transported into the small spiral heat-releasing pipe 104 through the upper connecting port 10511 on the side of the Z-shaped channel 1058, so as to assist in the secondary recovery of the waste gas heat energy through the small spiral heat-releasing pipe 104. By performing a double recovery operation on the waste gas heat, it can ensure that the heat inside the waste gas can be fully recovered, effectively avoiding the generation of energy waste phenomenon. Finally, the waste gas after absorbing the heat will be transported into the filtering unit 200 through the end of the small spiral heat-releasing pipe 104 for filtration and purification.

[0047] Among them, in combination with Figure 5, the first fixing member 201 includes a left fixing disk 2011 that is recessed inwardly on the outside, and one end of the filtering member 205 extends into the outer recess of the left fixing disk 2011, and filtering holes 2012 and discharge ports 2013 that are symmetrically formed on the left fixing disk 2011 and are symmetrically arranged up and down, and the outer end of the connecting member 204 is installed in the discharge port 2013.

[0048] Among them, combined with Figure 6 , the second fixing member 202 includes a right fixing disk 2021 that covers the outer end of the filtering member 205, an exhaust hole 2022 formed above the inside of the right fixing disk 2021, an exhaust pipe 2023 connected to the outside of the exhaust hole 2022, and the exhaust pipe 2023 extends upward to the outside of the box body 101, a relief opening 2024 formed below the right fixing disk 2021, a T-shaped push plate 2025 horizontally inserted on the relief opening 2024, a fixing pipe 2026 horizontally arranged outside the center position of the right fixing disk 2021, and an installation groove 2027 formed inside the fixing pipe 2026, and the switching unit 300 is installed in the installation groove 2027.

[0049] During use, the concave structures of the left fixing disk 2011 and the right fixing disk 2021 can surround and seal both ends of the filtering member 205, thereby preventing the leakage of waste gas during the filtering process. The two can be further installed and fixed with the cooperation of the support plate 203. The exhaust hole 2022 and the discharge port 2013 are on the same axis, and the exhaust pipe 2023 is used to discharge the gas filtered by the filtering member 205. The T-shaped push plate 2025 is slidably inserted in the relief opening 2024 and can displace horizontally in the relief opening 2024.

[0050] Among them, combined with Figure 5 , the connecting member 204 includes a combined pipe 2041 located in the discharge 2013, and an upper connecting pipe 2042 and a lower connecting pipe 2043 symmetrically arranged on the upper and lower sides of the combined pipe 2041. The upper connecting pipe 2042 and the lower connecting pipe 2043 are respectively communicated with the switching member 105 and the small spiral heat release pipe 104, and the inner ends of the upper connecting pipe 2042 and the lower connecting pipe 2043 are both communicated with the combined pipe 2041.

[0051] Among them, combined with Figure 5 , the filtering member 205 includes a filtering chamber 2051 located between the left fixing disk 2011 and the right fixing disk 2021, and both ends of the filtering chamber 2051 respectively extend into the left fixing disk 2011 and the right fixing disk 2021. Four groups of filter element chambers 2052 are horizontally formed on the filtering chamber 2051 at equal intervals, and each group of filter element chambers 2052 is provided with a filter element, and a hexagonal groove 2053 is horizontally formed at the center position of the filtering chamber 2051, and one end of the hexagonal prism 304 is inserted into the hexagonal groove 2053 in a matching manner.

[0052] During use, since the hexagonal prism 304 is inserted into the hexagonal groove 2053, the hexagonal groove 2053 can rotate circumferentially around the hexagonal prism 304 with the hexagonal prism 304 as the axis. Among the four filter element compartments 2052, two of them will always be located between the discharge port 2013 and the exhaust hole 2022, and between the filter hole 2012 and the relief opening 2024 respectively. Moreover, the filter element in the filter element compartment 2052 located between the filter hole 2012 and the relief opening 2024 can be pushed out of the filter hole 2012 by the T-shaped push plate 2025 slidably connected to the relief opening 2024, thus realizing the removal operation of the filter element.

[0053] Among them, in combination with Figure 8 , the fixing component 301 includes four equally spaced and circumferentially arranged limiting arc plates 3011, and the four limiting arc plates 3011 are horizontally fixed in the installation groove 2027, the limiting sliding grooves 3012 between every two limiting arc plates 3011, and the guiding edges 3013 opened at the top of the limiting arc plates 3011, and the guiding edges 3013 are arranged at an inclined angle.

[0054] During use, the four limiting sliding grooves 3012 equally divide the fixing component 301 circumferentially, and the angle between every two limiting sliding grooves 3012 is 90 degrees. And the two ends of the guiding edge 3013 are inclined from one side of a limiting sliding groove 3012 to the other side of another limiting sliding groove 3012. Therefore, an object sliding along the guiding edge 3013 can slide from one limiting sliding groove 3012 into another limiting sliding groove 3012.

[0055] Among them, in combination with Figure 8 , the pushing component 302 includes a push tube 3021 slidably connected between the four limiting arc plates 3011, multiple groups of teeth 3022 equally spaced and circumferentially arranged at the outer end of the push tube 3021, and both sides of each group of teeth 3022 are inclined outward, four equally spaced and circumferentially arranged limiting blocks 3023 on the outer wall of the push tube 3021, and the limiting blocks 3023 extend outward into the limiting sliding grooves 3012, a push rod 3024 horizontally and fixedly connected to the other end of the push tube 3021, and a pressing plate 3025 fixedly connected to the outer end of the push rod 3024.

[0056] During use, the pushing component 302 is limited by the limiting blocks 3023 in the limiting sliding grooves 3012, so it can only slide horizontally along the limiting sliding grooves 3012. At the same time, an empty groove with a diameter larger than the size of the hexagonal prism 304 is opened inside the push rod 3024. Therefore, one end of the hexagonal prism 304 can extend into the push rod 3024, and the two will not limit each other.

[0057] Among them, in combination with Figure 8, the transfer component 303 includes a transfer block 3031 located between four groups of limiting arc plates 3011, four groups of guiding blocks 3032 equally spaced and circumferentially arranged on the outer wall of the transfer block 3031, with the top of the guiding block 3032 arranged at an inclined angle, and a hexagonal slot 3033 horizontally opened at the axial center position of the transfer block 3031, and a hexagonal prism 304 horizontally inserted into the hexagonal slot 3033. The guiding block 3032 extends outward into the limiting sliding groove 3012, and the top of the guiding block 3032 abuts against the tooth 3022.

[0058] During the use process, the transfer component 303 always exists in a way that the guiding block 3032 abuts against the tooth 3022 under the elastic support of the return spring 305, and the hexagonal prism 304 passes through via the hexagonal slot 3033, so there is a circumferential limit between the two. Therefore, the transfer component 303 can drive the hexagonal prism 304 to rotate synchronously in a circumferential direction through the hexagonal slot 3033, and the transfer component 303 is limited by the limiting sliding groove 3012 through the guiding block 3032 on the side. Therefore, when the limiting sliding groove 3012 is not separated, the transfer component 303 is limited by it.

[0059] In summary, when it is necessary to replace the filter element in the filter component 205, there is no need to stop the equipment. Pressing the pushing component 302 can push the transfer component 303 to slide in the fixed component 301. At this time, the return spring 305 is compressed, while the hexagonal prism 304 remains stationary. At the same time, the top of the guiding block 3032 abuts against the position of half of the side of the tooth 3022 and is not completely inserted into the notch between the teeth 3022 (as Figure 8 shown), and when the pushing component 302 pushes the transfer component 303 to move to the end of the fixed component 301, the tooth 3022 is separated from the limit of the limiting sliding groove 3012. Under the reverse acting force of the return spring 305, the top of the tooth 3022 at the outer end of the transfer component 303 will be completely stuck into the card slot between the teeth 3022. At this time, the transfer component 303 generates a certain degree of misalignment. At this time, release the pressing of the pushing component 302, and the return spring 305 rebounds strongly, which will push the transfer component 303, so that the top of the tooth 3022 will slide along the guiding edge 3013 (as shown in Figure 9), and then enter another group of limiting sliding grooves 3012. At this time, the transfer component 303 has rotated 90 degrees compared to the initial state. Due to the mutual limitation between the transfer component 303 and the hexagonal prism 304, the hexagonal prism 304 drives the filter component 205 to rotate 90 degrees, thereby switching the filter element chamber 2052 with the filter element to be replaced between the discharge port 2013 and the exhaust hole 2022 to the filter element chamber 2052 equipped with a new filter element, so as to realize the replacement of the filter element, and there is no need to stop the operation when switching to a new filter element.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A printing and dyeing waste gas treatment device with heat recovery, characterized in that: include, The recovery unit (100) comprises a box body (101) located outside, a containing component (102) arranged on one side inside the box body (101), a large spiral heat release pipe (103) spirally wound and arranged inside the containing component (102), a small spiral heat release pipe (104) arranged at the center of the large spiral heat release pipe (103) in a vertical direction, wherein the end of the small spiral heat release pipe (104) extends to the outside of the containing component (102), and a switching component (105) arranged at the end of the large spiral heat release pipe (103), wherein the other end of the small spiral heat release pipe (104) is connected to one side of the switching component (105), and at the same time, one end of the side surface of the switching component (105) extends to the outside of the containing component (102); The filter unit (200) comprises a first fixing component (201) fixedly arranged on an outer side of a containing component (102), a second fixing component (202) symmetrically arranged with respect to the first fixing component (201), a support plate (203) located between the second fixing component (202) and the first fixing component (201), wherein the support plate (203) is in the shape of a half-cylindrical sheet and is laterally plugged into a connecting component (204) on an upper side of the first fixing component (201), wherein the switching component (105) and the end of the small spiral heat release tube (104) are connected to the connecting component (204), and a filter component (205) is laterally arranged between the second fixing component (202) and the first fixing component (201), wherein the support plate (203) is supported below the filter component (205); The switching unit (300) comprises a fixing component (301) arranged transversely at the position of the second fixing component (202), a pushing component (302) inserted transversely into the fixing component (301), and the outer end of the pushing component (302) extends outward to the outside of the second fixing component (202), a switching component (303) slidably connected to the fixing component (301), and the top end of the switching component (303) abuts against the end of the pushing component (302), a hexagonal prism (304) inserted transversely at the axial position of the switching component (303), and the two ends of the hexagonal prism (304) extend outwardly into the second fixing component (202) and the filtering component (205), respectively, and a return spring (305) sleeved on the hexagonal prism (304), and one end of the return spring (305) abuts against the bottom of the switching component (303); The containing component (102) comprises a water tank (1021) located in the box body (101), a water tank (1022) opened inside the water tank (1021), the large spiral heat release tube (103) and the small spiral heat release tube (104) both being arranged in the water tank (1022), and a water outlet pipe (1023) connected to the end of the water tank (1022), and one end of the water outlet pipe (1023) extending to the outside of the box body (101); The switching component (105) comprises a three-way joint (1051) connected to one end of the small spiral heat release tube (104), a connecting groove (1052) provided inside the three-way joint (1051), a first connecting tube (1053) connected between the three-way joint (1051) and the end of the large spiral heat release tube (103), a second connecting tube (1054) provided on one side of the three-way joint (1051), and the second connecting tube (1054) is connected to the connecting component (204), and a conversion block provided in the connecting groove (1052). (1055), a limiting ring (1056) arranged in the first connecting tube (1053), and an expansion medium (1057) arranged between the limiting ring (1056) and the first connecting tube (1053), the conversion block (1055) has a Z-shaped channel (1058) with a Z-shaped structure inside, a top connecting port (1059) connected to the first connecting tube (1053) is opened at the top of the Z-shaped structure, a lower connecting port (10510) is opened on the outer side of the lower end, and an upper connecting port (10511) is opened on the outer side of the upper end.

2. The printing and dyeing waste gas treatment equipment with heat recovery according to claim 1 is characterized in that: The first fixing component (201) comprises a left fixing disk (2011) whose outer side is concave inwards, one end of the filter component (205) extends into the outer concave of the left fixing disk (2011), and filter holes (2012) and a discharge port (2013) are symmetrically arranged on the left fixing disk (2011) and are symmetrical in upper and lower directions, and the outer end of the connecting component (204) is installed in the discharge port (2013).

3. The printing and dyeing waste gas treatment equipment with heat recovery according to claim 2 is characterized in that: The second fixing component (202) comprises a right fixing plate (2021) covering the outer end of the filter component (205), an exhaust hole (2022) provided at the upper part of the right fixing plate (2021), an exhaust pipe (2023) connected to the outer side of the exhaust hole (2022), and the exhaust pipe (2023) extends upward to the outside of the box body (101), a clearance opening (2024) provided at the bottom of the right fixing plate (2021), a T-shaped push plate (2025) laterally plugged into the clearance opening (2024), a fixing pipe (2026) laterally provided at the outer side of the center position of the right fixing plate (2021), and a mounting groove (2027) provided inside the fixing pipe (2026), and the switching unit (300) is installed in the mounting groove (2027).

4. The printing and dyeing waste gas treatment equipment with heat recovery according to claim 3 is characterized in that: The connecting component (204) comprises a connecting pipe (2041) located in the discharge port (2013), and an upper connecting pipe (2042) and a lower connecting pipe (2043) symmetrically arranged on the upper and lower sides of the connecting pipe (2041), and the upper connecting pipe (2042) and the lower connecting pipe (2043) are respectively connected to the switching component (105) and the small spiral heat release pipe (104).

5. The printing and dyeing waste gas treatment equipment with heat recovery and utilization according to claim 4 is characterized in that: The filter component (205) comprises a filter bin (2051) located between a left fixed disk (2011) and a right fixed disk (2021), and two ends of the filter bin (2051) extend into the left fixed disk (2011) and the right fixed disk (2021) respectively, four groups of filter cartridge bins (2052) equally divided and laterally opened on the filter bin (2051), and a filter cartridge is arranged in each group of filter cartridge bins (2052), and a hexagonal groove (2053) is laterally opened at the axis position of the filter bin (2051), and one end of the hexagonal column (304) is matched and inserted into the hexagonal groove (2053).

6. The printing and dyeing waste gas treatment equipment with heat recovery and utilization according to claim 3 is characterized in that: The fixing component (301) comprises four groups of equally divided and circumferentially arranged limiting arc plates (3011), and the four groups of limiting arc plates (3011) are transversely fixedly arranged in the installation groove (2027), a limiting sliding groove (3012) located between every two groups of limiting arc plates (3011), and a guiding edge (3013) opened at the top of the limiting arc plate (3011), and the guiding edge (3013) is arranged at an inclined angle.

7. The printing and dyeing waste gas treatment equipment with heat recovery and utilization according to claim 6 is characterized in that: The pushing component (302) comprises a pushing tube (3021) slidably connected between four groups of limiting arc plates (3011), a plurality of groups of latch teeth (3022) equally arranged around the outer end of the pushing tube (3021), and both sides of each group of latch teeth (3022) are inclined outwardly, four groups of limiting blocks (3023) equally arranged around the outer wall of the pushing tube (3021), and the limiting blocks (3023) extend outwardly into the limiting sliding groove (3012), a pushing rod (3024) transversely fixedly connected to the other end of the pushing tube (3021), and a pressing plate (3025) fixedly connected to the outer end of the pushing rod (3024).

8. The printing and dyeing waste gas treatment equipment with heat recovery according to claim 7 is characterized in that: The transfer component (303) comprises a transfer block (3031) located between four groups of limiting arc plates (3011), four groups of guide blocks (3032) equally divided and arranged around the outer wall of the transfer block (3031), the top of the guide block (3032) being arranged at an inclined angle, and a hexagonal slot (3033) transversely opened at the axial position of the transfer block (3031), and the hexagonal column (304) being transversely inserted into the hexagonal slot (3033), the guide block (3032) extending outwardly into the limiting sliding groove (3012), and the top of the guide block (3032) abutting against the latching tooth (3022).

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