Waste heat recovery device for toilet paper production and toilet paper production method

Abstract

The invention relates to the technical field of toilet paper production, and discloses a waste heat recovery device for toilet paper production and a toilet paper production method.Through cooperation of a cleaning assembly and a stirring assembly, when smoke generated in the toilet paper production process is introduced into a filtering tank, a stirring shaft of the stirring assembly drives a stirring rod to stir cold water in a heating tank; a driving rod of the cleaning assembly is driven to rotate through a transmission rod, smoke in the filtering tank is filtered through a filtering plate and then enters a heating pipe from a gas conveying pipe, cold water in the heating tank is heated through the heating pipe, heat transfer from a heat exchange pipe to water is accelerated through stirring of a stirring rod, heat resistance is reduced, and the heat exchange amount in unit time is increased; meanwhile, a driving rod drives a scraping plate to rotate to scrape impurities filtered out from a filtering plate, so that the filtering plate can be kept smooth in the working process, the filtering effect and the filtering efficiency of the filtering tank are improved, and the recovery efficiency of flue gas waste heat is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of toilet paper production, and specifically relates to a waste heat recovery device for toilet paper production and a toilet paper production method. Background Art

[0002] The paper-making industry is an important basic raw material industry closely related to the development of the national economy and social undertakings. It is characterized by intensive capital and technology, and significant scale benefits. It is an important force driving the development of industries such as scientific research, forestry, agriculture, chemical engineering, printing, packaging, machinery manufacturing, and logistics. Among them, when producing toilet paper, the waste heat of the flue gas at the boiler tail is recovered through a waste heat recovery device to achieve the purpose of energy conservation, consumption reduction, and pollution reduction. In the process of recovering the waste heat of the flue gas in the prior art, the flue gas is effectively filtered through a filtering device, and the filtered hot gas is introduced into a heat exchange device to heat the water for production use, effectively saving energy consumption. However, when the prior art uses a filtering device to filter the flue gas, the filtering device will be blocked due to impurities in the flue gas, thereby reducing the filtering effect and filtering efficiency of the filtering device, and thus reducing the waste heat recovery efficiency. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a waste heat recovery device for toilet paper production and a toilet paper production method to overcome the above technical problems existing in the related prior art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A waste heat recovery device for toilet paper production, comprising a base, on which a filter tank, a heating tank, a cleaning component, a collection component and a stirring component are arranged. The filter tank and the heating tank are connected by an air pipe. Inside the filter tank, a filter plate and a locking component are sequentially arranged. The filter plate is used to filter impurities in the flue gas, and the filtered flue gas enters the heating tank through the air pipe to heat the water in the heating tank. The locking component includes a locking column, a locking plate and a locking rod. The locking columns are arranged on both sides of the bottom of the filter tank. The locking plate and the locking rod are sequentially connected to the locking column. When the locking rod rotates, it can drive the locking plate to move vertically. The cleaning component includes a driving rod and a scraping plate. The driving rod is connected to the bottom of the filter tank, and the scraping plate is connected to the top of the driving rod, and the top end of the scraping plate is attached to the bottom of the filter plate. The collection component includes a collection box, which is installed inside the filter tank. Locking grooves are formed on both sides of the collection box. When the locking plate moves upward, it inserts into the locking grooves to fix the collection box. The stirring component includes a stirring shaft, which is installed at the bottom of the heating tank. Stirring rods are connected to the stirring shaft. A transmission rod is connected between the lower end of the stirring shaft and the lower end of the driving rod. When the stirring shaft drives the stirring rods to stir the water in the heating tank, it can drive the driving rod to rotate through the transmission rod, so as to drive the scraping plate to scrape off the impurities under the filter plate.

[0005] Preferably, an air inlet is fixedly connected to the middle of the outer side of the filter tank. One end of the air pipe is fixedly connected to the top of the filter tank. The filter plate is located above the air inlet, and the outer side of the filter plate is fixedly connected to the inner wall of the filter tank. A number of filter holes capable of filtering out impurities are formed on the filter plate. A support plate is fixedly installed at the bottom inside the filter tank, and the support plate is located below the air inlet. Disassembly openings are formed on the side walls of both sides of the filter tank, and the disassembly openings are located between the support plate and the air inlet.

[0006] Preferably, the bottom of the locking column is fixedly connected to the upper side of the support plate. The locking column is located between the two disassembly openings and is attached to the inner wall of the filter tank. The top end of the locking column is beveled. A storage groove is formed between the bottom of the bevel of the locking column and the bottom of the locking column. A sliding groove is formed on the side of the locking column facing the driving rod, and the sliding groove communicates with the lower end of the storage groove.

[0007] Preferably, the locking plate is L-shaped. The vertical end of the locking plate is movably installed in the receiving groove, and the horizontal end of the locking plate is slidably installed in the sliding groove. On both sides of the top of the vertical end of the locking plate, there are fixedly connected insertion rods corresponding to the locking grooves. On both sides of the bottom of the vertical end of the locking plate, the upper ends are fixedly connected to the upper ends of the support springs, and the lower ends of the support springs are fixedly connected to the bottom of the receiving groove. The outer end of the locking rod is threaded. The locking rod penetrates through the side wall of the filter tank, extends into the sliding groove, and is threadedly assembled on the locking column. One end of the locking rod located in the sliding groove is rotatably connected to a top block. The top block is slidably installed in the sliding groove, and the upper end of the top block is wedge-shaped, with the inclined surface of the top block facing the horizontal end of the locking plate.

[0008] Preferably, the driving rod is rotatably connected to the bottom of the filter tank. The upper end of the driving rod penetrates through the support plate and extends below the filter plate. The scraping plate is fixedly connected to the driving rod. The length of the scraping plate corresponds to the diameter of the filter plate. The lower end of the driving rod penetrates through the bottom of the filter tank, and a driven bevel gear is coaxially fixedly connected to the lower end of the driving rod.

[0009] Preferably, the collection box is semi-circular, and the radius of the collection box is equal to the radius of the filter tank. The two collection boxes are respectively slidably installed into the filter tank through the two disassembly openings. Grooves are provided on both sides of the collection box, which are fitted with the locking columns. The locking grooves are opened at the upper ends of the grooves. A semi-circular protective sleeve is fixedly connected to the middle of the collection box, and a handle is fixedly connected to the outside of the collection box.

[0010] Preferably, the stirring assembly further includes a driving motor. The output shaft of the driving motor is coaxially fixedly connected to the lower end of the stirring shaft. The upper end of the stirring shaft is rotatably connected to the heating tank. The stirring rod is fixedly connected to the upper end of the stirring shaft. A driving bevel gear is coaxially fixedly connected to the lower end of the stirring shaft.

[0011] Preferably, two sets of support frames are fixedly connected to the base. The filter tank and the heating tank are respectively fixedly connected to one set of support frames. Among them, a transmission rod is rotatably connected to two adjacent support frames of the two sets of support frames. Transmission bevel gears are coaxially fixedly connected to both ends of the transmission rod. The two transmission bevel gears are respectively meshed with the driving bevel gear and the driven bevel gear.

[0012] Preferably, an air outlet and a water inlet are provided at the top of the heating tank, a water outlet is fixedly connected to the outer side of the lower end of the heating tank, a spiral heating pipe is fixedly connected inside the heating tank, the stirring rod is located between the inner wall of the heating tank and the outer side of the heating pipe, one end of the heating pipe is fixedly connected to the other end of the air delivery pipe, and the other end of the heating pipe is fixedly connected to the air outlet.

[0013] The present invention also provides a method for producing toilet paper, which uses a waste heat recovery device for toilet paper production.

[0014] Compared with the prior art, the present invention provides a waste heat recovery device for toilet paper production and a method for producing toilet paper, which have the following beneficial effects: 1. For the waste heat recovery device for toilet paper production and the method for producing toilet paper, through the cooperation of the cleaning component and the stirring component, when the flue gas generated in the production process of toilet paper is introduced into the filtering tank, the stirring shaft of the stirring component drives the stirring rod to stir the cold water in the heating tank, and drives the driving rod of the cleaning component to rotate through the transmission rod. After the flue gas in the filtering tank passes through the filtration of the filter plate, it enters the heating pipe through the air delivery pipe, and the heating pipe heats the cold water in the heating tank. The stirring of the stirring rod accelerates the heat transfer from the heat exchange pipe to the water, reduces the thermal resistance and improves the heat transfer amount per unit time, thereby improving the heating efficiency of the heating tank. At the same time, the driving rod drives the scraper to rotate, scraping off the impurities filtered out on the filter plate, so that the filter plate can remain unobstructed during operation, thereby improving the filtering effect and filtering efficiency of the filtering tank, and thus improving the recovery efficiency of the waste heat of the flue gas.

[0015] 2. For the waste heat recovery device for toilet paper production and the method for producing toilet paper, through the setting of the locking component and the collection component, during the production process, the impurities scraped off by the scraper will be collected by the collection box of the collection component, avoiding the scattered accumulation of the impurities scraped off by the scraper in the filtering tank, which affects the normal operation of the device. At the same time, the locking component pushes the locking plate through the locking block to insert the insertion rod into the locking groove of the collection box, so that the collection box is fixed in the filtering tank, preventing the collection box from accidentally detaching from the filtering tank, resulting in the leakage of the flue gas in the filtering tank and reducing the heating efficiency of the heating pipe, thereby further improving the recovery efficiency of the waste heat of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a schematic diagram of the internal structure of the filtering tank of the present invention; Figure 3 is a schematic diagram of the internal structure of the heating tank of the present invention; Figure 4 is a schematic diagram of the positional relationship of components such as the collection box of the present invention; Figure 5 Schematic diagram of the internal structure of the locking column of the present invention; Figure 6 is Figure 5 Partial enlarged structural schematic diagram of part A of Figure 7 Planar structural schematic diagram of the transmission rod of the present invention; Figure 8 Side view structural schematic diagram of the heating tank of the present invention.

[0017] In the figure: 1, base; 11, support frame; 2, filter tank; 21, air inlet; 22, air delivery pipe; 23, support plate; 24, disassembly port; 3, locking assembly; 31, locking column; 311, storage groove; 312, sliding groove; 32, locking plate; 33, insertion rod; 34, support spring; 35, locking rod; 36, top block; 4, filter plate; 5, cleaning assembly; 51, driving rod; 52, scraping plate; 53, driven bevel gear; 6, collection assembly; 61, collection box; 62, groove; 63, locking groove; 64, protective sleeve; 65, handle; 7, heating tank; 71, heating pipe; 72, air outlet; 73, water inlet; 74, water outlet; 8, stirring assembly; 81, driving motor; 82, stirring shaft; 821, driving bevel gear; 83, stirring rod; 9, transmission rod; 91, transmission bevel gear. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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. Embodiment 1:

[0019] Please refer to Figures 1-8, A waste heat recovery device for toilet paper production, comprising a base 1, on which a filter tank 2, a heating tank 7, a cleaning component 5, a collection component 6 and a stirring component 8 are arranged. A gas pipeline 22 is connected between the filter tank 2 and the heating tank 7. A filter plate 4 and a locking component 3 are successively arranged in the filter tank 2. The filter plate 4 is used for filtering impurities in the flue gas. The filtered flue gas enters the heating tank 7 through the gas pipeline 22 to heat the water in the heating tank 7. The locking component 3 includes a locking column 31, a locking plate 32 and a locking rod 35. The locking columns 31 are arranged on both sides of the bottom of the filter tank 2. The locking plate 32 and the locking rod 35 are successively connected to the locking column 31. When the locking rod 35 rotates, it can drive the locking plate 32 to move vertically. The cleaning component 5 includes a driving rod 51 and a scraping plate 52. The driving rod 51 is connected to the bottom of the filter tank 2. The scraping plate 52 is connected to the top of the driving rod 51, and the top end of the scraping plate 52 is attached to the bottom of the filter plate 4. The collection component 6 includes a collection box 61. The collection box 61 is installed in the filter tank 2. Locking grooves 63 are formed on both sides of the collection box 61. When the locking plate 32 moves upward, it inserts into the locking grooves 63 to fix the collection box 61. The stirring component 8 includes a stirring shaft 82. The stirring shaft 82 is installed at the bottom of the heating tank 7. Stirring rods 83 are connected to the stirring shaft 82. A transmission rod 9 is connected between the lower end of the stirring shaft 82 and the lower end of the driving rod 51. When the stirring shaft 82 drives the stirring rods 83 to stir the water in the heating tank 7, it can drive the driving rod 51 to rotate through the transmission rod 9, so as to drive the scraping plate 52 to scrape the impurities under the filter plate 4.

[0020] Among them, when in use, first input the flue gas generated during papermaking into the filtration tank 2, and fill the heating tank 7 with water. When the flue gas enters the filtration tank 2, it will pass through the filter plate 4 and enter the top of the filtration tank 2. The filter plate 4 filters out the impurities in the flue gas. The filtered flue gas enters the heating tank 7 through the gas transmission pipe 22 to heat the water in the heating tank 7. At the same time, the stirring shaft 82 of the stirring assembly 8 drives the stirring rod 83 to rotate, stirring the water in the heating tank 7, accelerating the heat transfer from the heat exchange pipe to the water, reducing the thermal resistance and increasing the heat transfer amount per unit time, thereby improving the heating efficiency of the heating tank 7. Moreover, when the stirring shaft 82 rotates, it will drive the driving rod 51 through the transmission rod 9, so that the driving rod 51 drives the scraping plate 52 to rotate under the filter plate 4, scraping off the impurities filtered out by the filter plate 4. The impurities scraped off by the scraping plate 52 will fall into the collection box 61. At this time, the locking plate 32 of the locking assembly 3 moves to the upper end of the locking column 31 and inserts into the locking groove 63 on the side of the collection box 61, thereby fixing the collection box 61 in the filtration tank 2, preventing the collection box 61 from accidentally separating from the filtration tank 2 and causing the flue gas in the filtration tank 2 to leak out, thus reducing the waste heat recovery efficiency. When the production is completed, the device stops working. The worker reversely rotates the locking rod 35 to move the locking plate 32 downward and withdraw it from the locking groove 63, ending the fixation of the locking groove 63. Subsequently, the worker can pull out the unlocked collection box 61 from the filtration tank 2. After pouring out the impurities collected in the collection box 61, insert the collection box 61 back into the filtration tank 2 and rotate the locking rod 35 forward to move the locking plate 32 upward and insert it into the locking groove 63 again to fix the collection box 61 in the filtration tank 2 for the next production.

[0021] The difference from the above embodiment is that a gas inlet 21 is fixedly connected to the middle of the outer side of the filtration tank 2. One end of the gas transmission pipe 22 is fixedly connected to the top of the filtration tank 2. The filter plate 4 is located above the gas inlet 21, and the outer side of the filter plate 4 is fixedly connected to the inner wall of the filtration tank 2. A number of filter holes capable of filtering out impurities are formed on the filter plate 4. A support plate 23 is fixedly installed at the bottom of the filtration tank 2. The support plate 23 is located below the gas inlet 21. Disassembly openings 24 are formed on the side walls of both sides of the filtration tank 2. The disassembly openings 24 are located between the support plate 23 and the gas inlet 21.

[0022] Among them, the flue gas enters the filtration tank 2 through the gas inlet 21. After being filtered by the filter plate 4, it enters the heating tank 7 through the gas transmission pipe 22. The support plate 23 at the bottom of the filtration tank 2 provides support for the collection box 61.

[0023] The difference from the above embodiment is that the bottom of the locking column 31 is fixedly connected to the upper side of the support plate 23. The locking column 31 is located between the two disassembly openings 24 and is in contact with the inner wall of the filter tank 2. The top end of the locking column 31 is beveled. A storage groove 311 is formed between the bottom of the inclined surface of the locking column 31 and the bottom of the locking column 31. A sliding groove 312 is formed on one side of the locking column 31 facing the driving rod 51. The sliding groove 312 communicates with the lower end of the storage groove 311.

[0024] Among them, when the scraper 52 scrapes the impurities under the filter plate 4, some of the falling impurities will fall onto the inclined surface of the locking column 31 and slide into the collection box 61 along the inclined surface of the locking column 31.

[0025] The difference from the above embodiment is that the locking plate 32 is L-shaped. The vertical end of the locking plate 32 is movably installed in the storage groove 311. The horizontal end of the locking plate 32 is slidably installed in the sliding groove 312. Both sides of the top of the vertical end of the locking plate 32 are fixedly connected with insertion rods 33. The insertion rods 33 correspond to the locking grooves 63. Both sides of the bottom of the vertical end of the locking plate 32 are fixedly connected with the upper ends of the support springs 34. The lower ends of the support springs 34 are fixedly connected with the bottom of the storage groove 311. The outer end of the locking rod 35 is provided with a thread. The locking rod 35 penetrates the side wall of the filter tank 2, extends into the sliding groove 312, and is assembled on the locking column 31 through the thread. One end of the locking rod 35 located in the sliding groove 312 is rotatably connected with a top block 36. The top block 36 is slidably installed in the sliding groove 312, and the upper end of the top block 36 is wedge-shaped. The inclined surface end of the top block 36 faces the horizontal end of the locking plate 32.

[0026] Among them, when the collection box 61 is installed in the collection tank, the top block 36 is located on the side of the sliding groove 312 close to the storage groove 311, pushing the horizontal end of the locking plate 32 to the top of the sliding groove 312, so that the insertion rod 33 on the vertical end of the locking plate 32 is inserted into the locking groove 63 to fix the collection box 61 and stretch the support spring 34 under the locking plate 32. When it is necessary to take out the collection box 61 in the filter tank 2, the worker reversely rotates the locking rods 35 on both sides of the filter tank 2, so that the locking rods 35 drive the top block 36 to move towards the other end of the sliding groove 312 under the cooperation of the threads, so that the inclined surface of the top block 36 slides out from the horizontal end of the locking plate 32, and the stretched support spring 34 restores its deformation, thereby pulling down the locking plate 32, so that the horizontal end of the locking plate 32 moves down to the bottom of the sliding groove 312. At this time, the insertion rod 33 on the vertical end of the locking plate 32 is withdrawn from the locking groove 63 and stored in the storage groove 311, thereby releasing the fixation of the locking assembly 3 on the collection box 61. When reinstalling the collection box 61 into the filter tank 2, the worker positively rotates the locking rods 35 on both sides of the filter tank 2, so that the locking rods 35 drive the top block 36 to slide towards the side of the sliding groove 312 close to the storage groove 311 under the cooperation of the threads. The inclined surface of the top block 36 is inserted under the horizontal end of the locking plate 32, so that the horizontal end of the locking plate 32 moves upward along the inclined surface of the top block 36 to the top of the sliding groove 312, so that the vertical end of the locking plate 32 pushes the insertion rod 33 out of the storage groove 311 and inserts it into the locking groove 63 again to fix the collection box 61 and stretch the support spring 34.

[0027] The difference from the above embodiment is that the driving rod 51 is rotatably connected to the bottom of the filter tank 2, the upper end of the driving rod 51 penetrates through the support plate 23 and extends below the filter plate 4, the scraping plate 52 is fixedly connected to the driving rod 51, the length of the scraping plate 52 corresponds to the diameter of the filter plate 4, the lower end of the driving rod 51 penetrates through the bottom of the filter tank 2, and a driven bevel gear 53 is coaxially and fixedly connected to the lower end of the driving rod 51.

[0028] Among them, after the stirring assembly 8 is started, the driven bevel gear 53 is driven to drive the driving rod 51 to rotate through the transmission rod 9, so that the driving rod 51 drives the scraping plate 52 to scrape the impurities under the filter plate 4.

[0029] The difference from the above embodiment is that the collection box 61 is semicircular, the radius of the collection box 61 is equal to the radius of the filter tank 2, the two collection boxes 61 are respectively slidably installed into the filter tank 2 through the two disassembly ports 24, grooves 62 are opened on both sides of the collection box 61, the grooves 62 are fitted with the locking posts 31, the locking groove 63 is opened at the upper end of the grooves 62, a semicircular protective sleeve 64 is fixedly connected to the middle of the collection box 61, and a handle 65 is fixedly connected to the outside of the collection box 61.

[0030] Among them, two collection boxes 61 are respectively installed into the filter tank 2 through the disassembly openings 24 on both sides of the filter tank 2. After the two collection boxes 61 are installed, they are circular and fit with the filter tank 2. Moreover, the protective sleeves 64 on the two collection boxes 61 are closed to wrap the driving rod 51, so that the impurities falling along the driving rod 51 fall into the collection boxes 61 along the protective sleeves 64, preventing the impurities scraped by the scraper 52 from falling into the connection part between the driving rod 51 and the filter tank 2, ensuring the normal operation of the driving rod 51. After the locking assembly 3 is unlocked, the worker pulls out the collection box 61 from the filter tank 2 through the handle 65.

[0031] The difference from the above embodiment is that the stirring assembly 8 further includes a driving motor 81. The output shaft of the driving motor 81 is coaxially and fixedly connected to the lower end of the stirring shaft 82. The upper end of the stirring shaft 82 is rotatably connected to the heating tank 7. The stirring rod 83 is fixedly connected to the upper end of the stirring shaft 82. A driving bevel gear 821 is coaxially and fixedly connected to the lower end of the stirring shaft 82.

[0032] Among them, after the device is started, the driving motor 81 drives the stirring shaft 82 to rotate, so that the stirring shaft 82 stirs the water in the heating tank 7 through the stirring rod 83. At the same time, the stirring shaft 82 drives the driving bevel gear 821 to rotate.

[0033] The difference from the above embodiment is that two groups of support frames 11 are fixedly connected to the base 1. The filter tank 2 and the heating tank 7 are respectively fixedly connected to one group of the support frames 11. Among them, a transmission rod 9 is rotatably connected to two adjacent support frames 11 among the two groups of support frames 11. Transmission bevel gears 91 are coaxially and fixedly connected to both ends of the transmission rod 9. The two transmission bevel gears 91 are respectively meshed with the driving bevel gear 821 and the driven bevel gear 53. Among them, when the driving bevel gear 821 rotates, it drives the transmission rod 9 to rotate through the meshed transmission bevel gear 91, so that the transmission bevel gear 91 at the other end of the transmission rod 9 drives the driven bevel gear 53 to rotate. Embodiment 2:

[0034] The difference from the above embodiment is that an air outlet 72 and a water inlet 73 are respectively opened at the top of the heating tank 7. A water outlet 74 is fixedly connected to the outer side of the lower end of the heating tank 7. A spiral heating pipe 71 is fixedly connected inside the heating tank 7. The stirring rod 83 is located between the inner wall of the heating tank 7 and the outer side of the heating pipe 71. One end of the heating pipe 71 is fixedly connected to the other end of the air delivery pipe 22. The other end of the heating pipe 71 is fixedly connected to the air outlet 72.

[0035] Among them, when using this device, cold water is added to the heating tank 7 through the water inlet 73. After the filtered flue gas is introduced into the heating pipe 71 through the gas transmission pipe 22, the filtered flue gas flows along the spiral heating pipe 71, heating the cold water in the heating tank 7, and finally discharging from the gas outlet 72. The spiral heating pipe 71 increases the contact path and contact time between the heating pipe 71 and the fluid, making the heat transfer in the filtered flue gas more sufficient, thereby further improving the waste heat recovery efficiency. After the cold water in the heating tank 7 is heated, the worker can open the water outlet 74 and use the hot water in the heating tank 7 when producing toilet paper.

[0036] The present invention also provides a method for producing toilet paper, which uses a waste heat recovery device for producing toilet paper.

[0037] Working principle: When in use, first, the flue gas generated during production is input into the filtration tank 2 through the air inlet 21, and cold water is added to the heating tank 7 through the water inlet 73. When the flue gas enters the filtration tank 2, it will pass through the filter plate 4 and enter the top of the filtration tank 2. The filter plate 4 filters out the impurities in the flue gas. The filtered flue gas enters the heating pipe 71 in the heating tank 7 through the gas transmission pipe 22 to heat the water in the heating tank 7. At the same time, the drive motor 81 of the stirring assembly 8 drives the stirring shaft 82 to rotate, so that the stirring shaft 82 stirs the water in the heating tank 7 through the stirring rod 83, accelerating the heat transfer from the heat exchange pipe to the water, reducing the thermal resistance and increasing the heat transfer per unit time, thereby improving the heating efficiency of the heating tank 7 and driving the driving bevel gear 821 to rotate; When the driving bevel gear 821 rotates, it will drive the transmission rod 9 to rotate through the meshing transmission bevel gear 91, so that the transmission bevel gear 91 at the other end of the transmission rod 9 drives the driven bevel gear 53 to rotate, driving the driving rod 51 to drive the scraper 52 to rotate under the filter plate 4, scraping off the impurities filtered out by the filter plate 4. The impurities scraped off by the scraper 52 will fall into the collection box 61. At this time, the top block 36 is located on the side of the sliding groove 312 close to the storage groove 311, pushing the horizontal end of the locking plate 32 to the top of the sliding groove 312, so that the insertion rod 33 on the vertical end of the locking plate 32 is inserted into the locking groove 63 to fix the collection box 61, and stretching the support spring 34 under the locking plate 32, preventing the collection box 61 from accidentally separating from the filtration tank 2, resulting in the leakage of the flue gas in the filtration tank 2 and reducing the waste heat recovery efficiency; When the production is completed, the device stops working. The worker reversely rotates the locking rods 35 on both sides of the filter tank 2, so that the locking rods 35 drive the top block 36 to move towards the other end of the sliding groove 312 under the cooperation of the threads, so that the inclined surface of the top block 36 slides out from the horizontal end of the locking plate 32. The stretched support spring 34 restores its deformation, thereby pulling down the locking plate 32, so that the horizontal end of the locking plate 32 moves down to the bottom of the sliding groove 312. At this time, the insertion rod 33 on the vertical end of the locking plate 32 is withdrawn from the locking groove 63 and received in the storage groove 311, thereby releasing the fixation of the locking assembly 3 on the collection box 61. Subsequently, the worker can pull out the unlocked collection box 61 from the filter tank 2. After pouring out the impurities collected in the collection box 61, the collection box 61 is reinserted into the filter tank 2, and the locking rods 35 on both sides of the filter tank 2 are rotated forward, so that the locking rods 35 drive the top block 36 to slide towards the side of the sliding groove 312 close to the storage groove 311 under the cooperation of the threads. The inclined surface of the top block 36 is inserted under the horizontal end of the locking plate 32, so that the horizontal end of the locking plate 32 moves upward along the inclined surface of the top block 36 to the top of the sliding groove 312, so that the vertical end of the locking plate 32 pushes the insertion rod 33 out of the storage groove 311 and inserts it into the locking groove 63 again to fix the collection box 61 and stretch the support spring 34 to prepare for the next production.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for toilet paper production, comprising a base, characterized in that: The base is provided with a filter tank, a heating tank, a cleaning component, a collecting component and a stirring component. The filter tank and the heating tank are connected by an air pipe. A filter plate and a locking component are sequentially arranged in the filter tank. The filter plate is used to filter impurities in the smoke. The filtered smoke enters the heating tank through the air pipe to heat the water in the heating tank. The locking component includes a locking column, a locking plate and a locking rod. The locking columns are arranged on both sides of the bottom of the filter tank. The locking plate and the locking rod are sequentially connected to the locking columns. When the locking rod rotates, it can drive the locking plate to move vertically. The cleaning component includes a driving rod and a scraper. The driving rod is connected to the The bottom of the filter tank, the scraper is connected to the top of the driving rod, and the top of the scraper is in contact with the bottom of the filter plate, the collecting assembly includes a collecting box, the collecting box is installed in the filter tank, locking grooves are provided on both sides of the collecting box, and the locking plates are inserted into the locking grooves to fix the collecting box when moving upward, the stirring assembly includes a stirring shaft, the stirring shaft is installed at the bottom of the heating tank, a stirring rod is connected to the stirring shaft, a transmission rod is connected between the lower end of the stirring shaft and the lower end of the driving rod, when the stirring shaft drives the stirring rod to stir the water in the heating tank, the driving rod can be driven to rotate through the transmission rod, and the scraper is driven to scrape off impurities under the filter plate.

2. A waste heat recovery device for toilet paper production according to claim 1, characterized in that: An air inlet is fixedly connected to the middle of the outer side of the filter tank, one end of the air supply pipe is fixedly connected to the top of the filter tank, the filter plate is located above the air inlet, and the outer side of the filter plate is fixedly connected to the inner wall of the filter tank, a plurality of filter holes for filtering out impurities are provided on the filter plate, a support plate is fixedly installed at the bottom of the filter tank, the support plate is located below the air inlet, and disassembly openings are provided on the side walls on both sides of the filter tank, and the disassembly openings are located between the support plate and the air inlet.

3. A waste heat recovery device for toilet paper production according to claim 2, characterized in that: The bottom of the locking column is fixedly connected to the upper side of the support plate, the locking column is located between the two disassembly ports and fits against the inner wall of the filter tank, the top of the locking column is inclined, a receiving groove is provided between the inclined bottom of the locking column and the bottom of the locking column, a sliding groove is provided on the side of the locking column facing the driving rod, and the sliding groove is connected to the lower end of the receiving groove.

4. A waste heat recovery device for toilet paper production according to claim 3, characterized in that: The locking plate is L-shaped, and the vertical end of the locking plate is movably mounted in the receiving groove, and the horizontal end of the locking plate is slidably mounted in the sliding groove, and both sides of the top of the vertical end of the locking plate are fixedly connected with plug rods, and the plug rods correspond to the locking groove, and the bottom sides of the vertical end of the locking plate are fixedly connected with the upper ends of the support springs, and the lower ends of the support springs are fixedly connected to the bottom of the receiving groove, and a thread is provided on the outward end of the locking rod, and the locking rod passes through the side wall of the filter tank and extends into the sliding groove, and is assembled on the locking column by threading, and a top block is rotatably connected to the end of the locking rod located in the sliding groove, and the top block is slidably mounted in the sliding groove, and the upper end of the top block is wedge-shaped, and the inclined surface of the top block faces the horizontal end of the locking plate.

5. A waste heat recovery device for toilet paper production according to claim 2, characterized in that: The driving rod is rotatably connected to the bottom of the filter tank, the upper end of the driving rod passes through the support plate and extends to the bottom of the filter plate, the scraper is fixedly connected to the driving rod, the length of the scraper corresponds to the diameter of the filter plate, the lower end of the driving rod passes through the bottom of the filter tank, and a driven bevel gear is coaxially fixedly connected to the lower end of the driving rod.

6. A waste heat recovery device for toilet paper production according to claim 4, characterized in that: The collecting box is semicircular in shape, and the radius of the collecting box is equal to the radius of the filtering tank. The two collecting boxes are slidably installed into the filtering tank through the two disassembly openings respectively. Grooves are provided on both sides of the collecting box, and the grooves are matched with the locking columns. The locking grooves are provided at the upper ends of the grooves. A semicircular protective sleeve is fixedly connected to the middle of the collecting box, and a handle is fixedly connected to the outer side of the collecting box.

7. A waste heat recovery device for toilet paper production according to claim 5, characterized in that: The stirring assembly also includes a driving motor, the output shaft of the driving motor is coaxially fixedly connected to the lower end of the stirring shaft, the upper end of the stirring shaft is rotatably connected to the heating tank, the stirring rod is fixedly connected to the upper end of the stirring shaft, and a driving bevel gear is coaxially fixedly connected to the lower end of the stirring shaft.

8. A waste heat recovery device for toilet paper production according to claim 7, characterized in that: Two groups of support frames are fixedly connected to the base, and the filter tank and the heating tank are fixedly connected to one group of the support frames, wherein two adjacent support frames in the two groups of the support frames are rotatably connected with a transmission rod, and both ends of the transmission rod are coaxially fixedly connected with a transmission bevel gear, and the two transmission bevel gears are respectively meshed with the driving bevel gear and the driven bevel gear.

9. A waste heat recovery device for toilet paper production according to claim 7, characterized in that: The top portion of the heating tank is provided with an air outlet and a water inlet, the outer side of the lower end of the heating tank is fixedly connected with the water outlet, a spiral heating tube is fixedly connected inside the heating tank, the stirring rod is located between the inner wall of the heating tank and the outer side of the heating tube, one end of the heating tube is fixedly connected to the other end of the gas pipe, and the other end of the heating tube is fixedly connected to the air outlet.

10. A method for producing toilet paper, characterized in that: A waste heat recovery device for toilet paper production as described in any one of claims 1 to 9 is used.

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