An environmentally friendly household paper preparation device and its preparation method

Abstract

This invention discloses an environmentally friendly household paper preparation device and its preparation method, relating to the field of paper preparation technology. The device includes a support frame, a feeding device connected to one side of the support frame, a forming device connected to the other side of the support frame, a drying device connected to the forming device, and a material dispensing and packaging device connected to the drying device. A pulping device, a purification device, and a bleaching device are sequentially connected between the feeding device and the forming device, all mounted on the support frame. The pulping device includes a drive unit and a pulping unit, both mounted on the support frame, with the drive unit mounted on the pulping unit. The purification device includes a screening unit, a power unit, and a purification unit, both mounted on the support frame and connected to the power unit, with the purification unit mounted on the screening unit. This invention facilitates rapid screening and purification of pulp, improving the efficiency and quality of household paper preparation.

Description

Technical Field

[0001] This invention relates to the field of paper preparation technology, and in particular to an environmentally friendly household paper preparation device and its preparation method. Background Technology

[0002] With the continuous development of society and the increasing awareness of environmental protection, modern papermaking technology is paying more attention to energy conservation, emission reduction and circular economy. As a result, more green and environmentally friendly production methods are adopted in the production of household paper, such as improving bleaching processes to reduce the emission of harmful substances, using waste paper to recycle pulp, and developing new bio-based and biodegradable materials for papermaking. In the current technology, the process of producing paper is relatively complicated, which facilitates the screening of pulp and the removal of impurities.

[0003] Chinese patent application number "202110112819.7" proposes a pulp extrusion papermaking device. This patent, by setting up a box, a movable base, a screen plate, a return spring, a drainage trough, a conveying mechanism, and a pressure mechanism, can avoid excessive pulp from hindering the extrusion process and improve the extrusion quality. However, this patent cannot screen the pulp, nor can it quickly remove impurities after screening, which will lead to a decrease in the production efficiency and quality of papermaking. At the same time, this patent is not convenient for efficient bleaching of the pulp. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes an environmentally friendly household paper production device, comprising a support frame, a feeding device connected to one side of the support frame, a forming device connected to the other side of the support frame, a drying device connected to the forming device, and a material dispensing and packaging device connected to the drying device. A pulping device, a purification device, and a bleaching device are sequentially connected between the feeding device and the forming device, all mounted on the support frame. The pulping device includes a drive unit and a pulping unit, both mounted on the support frame, with the drive unit mounted on the pulping unit. The purification device includes a screening unit, a power unit, and a purification unit, both mounted on the support frame and connected to the power unit, with the purification unit mounted on the screening unit. The bleaching device includes a stirring unit and a bleaching unit, both mounted on the support frame, with the stirring unit mounted on the bleaching unit. The pulping unit is connected to the feeding device, and the pulping unit and bleaching unit are connected via the screening unit. The bleaching unit is connected to the forming device.

[0005] Furthermore, the pulping unit includes a pulping box, a support base one, a support base two, a feed pipe one, a water inlet pipe one, a feed pipe two, a support base three, a feed pipe three, a support base four, and a feed pipe four. The support base one, support base three, and support base four are all fixedly installed on the support frame. The pulping box and support base two are both fixedly installed on support base one. The feed pipe one, water inlet pipe one, and feed pipe two are all fixedly installed on support base two. The feed pipe one, water inlet pipe one, and feed pipe two are all connected to the pulping box. The feed pipe four is fixedly installed on support base four. The feed pipe three is fixedly installed on support base three. The feed pipe four is connected to the lower end of the pulping box. The feed pipe three is connected to the feed pipe four. A pump is installed on the feed pipe four. A water injection device is connected to the water inlet pipe one.

[0006] Furthermore, the drive unit includes a second pulley, a first rotating shaft, a first motor, and a pulping shaft. The first motor is fixedly mounted on a first support base. The third support base is coaxially fixedly mounted on the output shaft of the first motor. The second pulley is coaxially fixedly mounted on the first rotating shaft. The pulping shaft is coaxially rotatably mounted inside the pulping box. Pulping blades are provided on the pulping shaft. The first pulley is coaxially fixedly mounted on the pulping shaft. A first belt connects the first pulley and the second pulley.

[0007] Furthermore, the screening unit includes a screening box, support base five, support base eight, feed pipe five, feed pipe six, discharge pipe one, feed pipe seven, discharge pipe two, impurity removal cylinder, screening cylinder, material distribution shaft, connecting plate four, and impurity removal plate two. Support base five and support base eight are both fixedly mounted on the support frame. The screening box is fixedly mounted on support base five. Feed pipe five is fixedly mounted on support base eight. Feed pipe six, discharge pipe one, feed pipe seven, and discharge pipe two are all fixedly mounted on the screening box. Feed pipe five and feed pipe six are connected... The feed pipe six is ​​inclined, the connecting plate four is fixedly installed in the screening box, the impurity removal plate two is slidably installed in the screening box, initially, the impurity removal plate two is in contact with the connecting plate four, the impurity removal cylinder is fixedly installed on the impurity removal plate two, the screening cylinder is fixedly installed below the connecting plate four, the screening cylinder is provided with multiple filter holes, the material distribution shaft is coaxially rotatably installed in the screening box, the discharge pipe one is provided with a material pump two, the discharge pipe two is provided with a material pump three, and the feed pipe seven is provided with a material pump four.

[0008] Furthermore, the power unit includes a support base nine, a motor two, a pulley three, a belt two, a pulley four, a rotating shaft two, a rotating wheel, and a cleaning plate one. The support base nine is fixedly mounted on the support frame, the motor two is fixedly mounted on the support base nine, the pulley three is fixedly mounted on the output shaft of the motor two, the rotating shaft two is coaxially fixedly mounted inside the material distribution shaft, the pulley four is coaxially fixedly mounted on the rotating shaft two, the pulley three and the pulley four are connected by the belt two, the rotating wheel is connected to the rotating shaft two by a spline, the cleaning plate one is slidably mounted on the bottom of the screening box, the rotating wheel is rotatably connected to the cleaning plate one, and the rotating shaft two is rotatably connected to the external support plate one on the support frame.

[0009] Furthermore, the impurity removal unit includes a support base six, a guide rod, a lead screw, a support base seven, a motor three, a support base ten, a connecting plate one, a connecting plate two, a water inlet pipe two, a connecting plate three, and a connecting rod. Support base six and support base seven are both fixedly mounted on support base five, and are respectively distributed on both sides of the screening box. The guide rod is fixedly mounted on support base six, the lead screw is rotatably mounted on support base seven, support base ten is fixedly mounted on a support frame, and motor three is fixedly mounted on support base ten. The lead screw is coaxially and fixedly connected to the output shaft of motor three. The guide rod and the support... The frame is fixedly connected. The second connecting plate is slidably mounted on the guide rod. The connecting rod is fixedly mounted on the second impurity removal plate. The third connecting plate is fixedly mounted on the connecting rod. The second water inlet pipe is coaxially fixedly mounted on the third connecting plate. The second connecting plate and the third connecting plate are coaxially fixedly connected. The first connecting plate is coaxially fixedly mounted on the first impurity removal plate. The first connecting plate is slidably connected to the guide rod. The lead screw is provided with two sections of threads with opposite helical directions. The first connecting plate is threaded to one section of the lead screw. The second connecting plate is threaded to the other section of the lead screw. The second water inlet pipe is externally connected to a second water injection device.

[0010] Furthermore, the bleaching unit includes a bleaching tank, a support rod one, a support rod two, a feed pipe eight, a feed pipe nine, and a discharge pipe three. The bleaching tank is fixedly connected to a support frame via support rod one. Support rod two is fixedly installed on the support frame. Feed pipe nine and discharge pipe three are both fixedly installed on the bleaching tank. Feed pipe nine and discharge pipe three are respectively located on both sides of the bleaching tank. One end of feed pipe eight is fixedly connected to feed pipe nine, and the other end of feed pipe eight is fixedly connected to feed pipe seven. A pump five is installed on discharge pipe three, and discharge pipe three is connected to a forming device.

[0011] Furthermore, the stirring unit includes a stirring shaft, pulley five, pulley six, belt three, rotating shaft three, motor four, and stirring rods. A support plate two is externally connected to the bleaching tank. Motor four is fixedly mounted on the support plate two. Rotating shaft three is coaxially fixedly mounted on the output shaft of motor four. Pulley six is ​​coaxially fixedly mounted on rotating shaft three. The stirring shaft is rotatably mounted inside the bleaching tank. Pulley five is coaxially fixedly mounted on the stirring shaft. Pulley five and pulley six are connected by belt three. The stirring rod is fixedly mounted on the stirring shaft. Multiple stirring rods are provided, each with multiple spray nozzles. The stirring shaft has a liquid inlet, and the spray nozzles communicate with the liquid inlet. A liquid delivery device is externally connected to the stirring shaft, and the liquid delivery device stores bleach solution.

[0012] This invention also provides a method for preparing environmentally friendly household paper using an environmentally friendly household paper preparation device, comprising the following steps:

[0013] S1. The pulp used for preparing paper pulp is injected into the pulping unit through a feeding device, and water is injected into the pulping unit through a water injection device. The pulp in the pulping unit is fully pulped by the drive unit, which improves the pulping efficiency and pulping quality and can quickly form the required paper pulp.

[0014] S2. The pulp enters the screening unit. Through the cooperation of the screening unit and the power unit, the pulp can be screened in multiple stages. By using centrifugal force and gravity, large-sized materials can be screened out efficiently, thereby improving screening efficiency while ensuring pulp quality.

[0015] S3. After the pulp screening is completed and no more pulp enters the screening box, the impurity removal unit can remove the large-sized impurities remaining at both ends of the screening box at the same time, thereby ensuring the subsequent screening of pulp. This solves the problem of the screening device being difficult to clean in the existing technology, and can greatly reduce the workload of the user.

[0016] S4. After screening, the pulp enters the bleaching unit. With the cooperation of the stirring unit and the bleaching unit, the pulp can be bleached thoroughly and evenly, which improves the bleaching effect, thereby making the paper pure in color and minimizing the environmental impact.

[0017] S5. After bleaching, the pulp enters the forming device for forming, and after forming, it enters the drying device for drying, thus obtaining the required environmentally friendly household paper.

[0018] The beneficial effects of this invention compared with the prior art are: (1) This invention injects the material into the pulping unit through the feeding device and simultaneously injects water into the pulping unit through the water injection device. The pulp in the pulping unit is fully pulped by the driving unit, which improves the pulping efficiency and pulping quality and can quickly form the required pulp; (2) This invention can perform multi-stage screening of pulp by the cooperation of the screening unit and the power unit. It can efficiently screen out large-sized materials by using centrifugal force and gravity, thereby improving screening efficiency and ensuring pulp quality. When the pulp screening is completed and no more pulp enters the screening box, the impurity removal unit can remove the large-sized impurities remaining at both ends of the screening box, thereby ensuring the subsequent pulp screening. This solves the problem of the screening device in the prior art being difficult to clean and can greatly reduce the workload of users; (3) This invention can fully and evenly bleach the pulp by the cooperation of the stirring unit and the bleaching unit, which improves the bleaching effect, makes the paper color pure and minimizes the environmental impact. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a top view of the present invention.

[0021] Figure 3 This is a front view of the present invention.

[0022] Figure 4 This is a side view of the present invention.

[0023] Figure 5 This is a schematic diagram of the pulping device of the present invention.

[0024] Figure 6 This is a partial structural diagram of the purification device and support frame of the present invention.

[0025] Figure 7 This is a schematic diagram of a partial structure of the purification device of the present invention. Figure 1 .

[0026] Figure 8 This is a schematic diagram of a partial structure of the purification device of the present invention. Figure 2 .

[0027] Figure 9 This is a schematic diagram of a partial structure of the purification device of the present invention. Figure 3 .

[0028] Figure 10 This is a schematic diagram of a partial structure of the purification device of the present invention. Figure 4 .

[0029] Figure 11 For the present invention Figure 10 A cross-sectional view along the AA direction.

[0030] Figure 12 This is a schematic diagram of a partial structure of the purification device of the present invention. Figure 5 .

[0031] Figure 13 This is a schematic diagram of the bleaching device of the present invention.

[0032] Figure 14 This is a partial structural diagram of the bleaching device of the present invention.

[0033] Reference numerals: 101-Support frame; 201-Pulping box; 202-Support base one; 203-Support base two; 204-Feed pipe one; 205-Water inlet pipe one; 206-Feed pipe two; 207-Pulley one; 208-Belt one; 209-Pulley two; 210-Shaft one; 211-Motor one; 212-Support base three; 213-Feed pipe three; 214-Support base four 215-Feed pipe four; 216-Pulping shaft; 301-Screwing box; 302-Support base five; 303-Support base six; 304-Guide rod; 305-Screw screw; 306-Support base seven; 307-Support base eight; 308-Feed pipe five; 309-Feed pipe six; 310-Support base nine; 311-Motor two; 312-Pulley three; 313-Belt two; 314-Belt 315-Motor 3; 316-Support base 10; 317-Shaft 2; 318-Rotating wheel; 319-Impurity removal plate 1; 320-Connecting plate 1; 321-Discharge pipe 1; 322-Infeed pipe 7; 323-Discharge pipe 2; 324-Connecting plate 2; 325-Water inlet pipe 2; 326-Connecting plate 3; 327-Connecting rod; 328-Impurity removal cylinder; 329-Screening cylinder; 33 0-Distribution shaft; 331-Connecting plate four; 332-Impurity removal plate two; 401-Bleaching box; 402-Support rod one; 403-Support rod two; 404-Feed pipe eight; 405-Feed pipe nine; 406-Stirring shaft; 407-Pulley five; 408-Pulley six; 409-Belt three; 410-Rotating shaft three; 411-Motor four; 412-Discharge pipe three; 413-Stirring rod. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0035] Example: Figures 1-14The environmentally friendly household paper production equipment shown includes a support frame 101. A feeding device is connected to one side of the support frame 101, and a forming device is connected to the other side. A drying device is connected to the forming device, and a material dispensing and packaging device is connected to the drying device. A pulping device, a purification device, and a bleaching device are sequentially connected between the feeding device and the forming device. All three devices are mounted on the support frame 101. The pulping device includes a drive unit and a pulping unit, which are mounted on the support frame 101. The drive unit is mounted on the pulping unit. The purification device includes a screening unit, a power unit, and a purification unit. The screening unit and the power unit are both mounted on the support frame 101 and connected. The purification unit is mounted on the screening unit. The bleaching device includes a stirring unit and a bleaching unit, which are mounted on the support frame 101. The stirring unit is mounted on the bleaching unit. The pulping unit is connected to the feeding device, and the pulping unit and the bleaching unit are connected through the screening unit. The bleaching unit is connected to the forming device.

[0036] The pulping unit includes a pulping box 201, support base 1 202, support base 203, feed pipe 1 204, water inlet pipe 1 205, feed pipe 206, support base 3 212, feed pipe 3 213, support base 4 214, and feed pipe 4 215. Support base 1 202, support base 3 212, and support base 4 214 are all fixedly mounted on support frame 101. The pulping box 201 and support base 203 are both fixedly mounted on support base 1 202. Feed pipe 1 204, water inlet pipe 1 205, and... Feed pipe 206 is fixedly installed on support base 203. Feed pipe 1 204, water inlet pipe 1 205 and feed pipe 206 are all connected to pulping box 201. Feed pipe 4 215 is fixedly installed on support base 4 214. Feed pipe 3 213 is fixedly installed on support base 3 212. Feed pipe 4 215 is connected to the lower end of pulping box 201. Feed pipe 3 213 is connected to feed pipe 4 215. Feed pump 1 is installed on feed pipe 4 215. Water injection device 1 is connected to water inlet pipe 1 205.

[0037] The drive unit includes a second pulley 209, a first rotating shaft 210, a first motor 211, and a pulping shaft 216. The first motor 211 is fixedly mounted on a first support base 202. The third support base 212 is coaxially fixedly mounted on the output shaft of the first motor 211. The second pulley 209 is coaxially fixedly mounted on the first rotating shaft 210. The pulping shaft 216 is coaxially rotatably mounted inside the pulping box 201. Pulping blades are provided on the pulping shaft 216. A first pulley 207 is coaxially fixedly mounted on the pulping shaft 216. A first belt 208 connects the first pulley 207 and the second pulley 209.

[0038] The screening unit includes a screening box 301, support base 5 302, support base 8 307, feed pipe 5 308, feed pipe 6 309, discharge pipe 1 321, feed pipe 7 322, discharge pipe 2 323, impurity removal cylinder 328, screening cylinder 329, material distribution shaft 330, connecting plate 4 331, and impurity removal plate 2 332. Support base 5 302 and support base 8 307 are both fixedly mounted on support frame 101. Screening box 301 is fixedly mounted on support base 5 302. Feed pipe 5 308 is fixedly mounted on support base 8 307. Feed pipe 6 309, discharge pipe 1 321, feed pipe 7 322, and discharge pipe 2 323 are all fixedly mounted on screening box 301. Feed pipe 5 308 is connected to feed pipe 6 309. Feed pipe 6 309 is inclined. Connecting plate 4 331 is fixedly installed in screening box 301. Impurity removal plate 2 332 is slidably installed in screening box 301. Initially, impurity removal plate 2 332 is in contact with connecting plate 4 331. Impurity removal cylinder 328 is fixedly installed on impurity removal plate 2 332. Screening cylinder 329 is fixedly installed below connecting plate 4 331. Screening cylinder 329 is provided with multiple filter holes. Distributing shaft 330 is coaxially rotatably installed in screening box 301. Discharge pipe 1 321 is provided with pump 2. Discharge pipe 2 323 is provided with pump 3. Feed pipe 7 322 is provided with pump 4.

[0039] The power unit includes a support base 310, a motor 311, a pulley 312, a belt 313, a pulley 314, a shaft 317, a rotating wheel 318, and a cleaning plate 319. The support base 310 is fixedly mounted on the support frame 101. The motor 311 is fixedly mounted on the support base 310. The pulley 312 is fixedly mounted on the output shaft of the motor 311. The shaft 317 is coaxially fixedly mounted inside the material distribution shaft 330. The pulley 314 is coaxially fixedly mounted on the shaft 317. The pulley 312 and the pulley 314 are connected by the belt 313. The rotating wheel 318 is connected to the shaft 317 by a spline. The cleaning plate 319 is slidably mounted on the bottom of the screening box 301. The rotating wheel 318 is rotatably connected to the cleaning plate 319. The shaft 317 is rotatably connected to the external support plate 319 on the support frame 101.

[0040] The impurity removal unit includes a support base 303, a guide rod 304, a lead screw 305, a support base 306, a motor 315, a support base 316, a connecting plate 320, a connecting plate 324, a water inlet pipe 325, a connecting plate 326, and a connecting rod 327. Support bases 303 and 306 are both fixedly mounted on support base 302. Support bases 303 and 306 are distributed on both sides of the screening box 301. The guide rod 304 is fixedly mounted on support base 303. The lead screw 305 is rotatably mounted on support base 306. Support base 316 is fixedly mounted on support frame 101. Motor 315 is fixedly mounted on support base 316. The lead screw 305 is coaxially and fixedly connected to the output shaft of motor 315. The guide rod 304 is fixedly connected to the support frame 101. The second connecting plate 324 is slidably installed on the guide rod 304. The connecting rod 327 is fixedly installed on the second impurity removal plate 332. The third connecting plate 326 is fixedly installed on the connecting rod 327. The second water inlet pipe 325 is coaxially fixedly installed on the third connecting plate 326. The second connecting plate 324 and the third connecting plate 326 are coaxially fixedly connected. The first connecting plate 320 is coaxially fixedly installed on the first impurity removal plate 319. The first connecting plate 320 is slidably connected to the guide rod 304. The lead screw 305 is provided with two sections of threads with opposite spiral directions. The first connecting plate 320 is connected to one section of the thread on the lead screw 305. The second connecting plate 324 is connected to the other section of the thread on the lead screw 305. The second water inlet pipe 325 is externally connected to the second water injection device.

[0041] The bleaching unit includes a bleaching tank 401, a first support rod 402, a second support rod 403, an eighth feed pipe 404, a ninth feed pipe 405, and a third discharge pipe 412. The bleaching tank 401 is fixedly connected to the support frame 101 via the first support rod 402. The second support rod 403 is fixedly installed on the support frame 101. The ninth feed pipe 405 and the third discharge pipe 412 are both fixedly installed on the bleaching tank 401. The ninth feed pipe 405 and the third discharge pipe 412 are respectively located on both sides of the bleaching tank 401. One end of the eighth feed pipe 404 is fixedly connected to the ninth feed pipe 405, and the other end of the eighth feed pipe 404 is fixedly connected to the seventh feed pipe 322. A fifth pump is installed on the third discharge pipe 412, and the third discharge pipe 412 is connected to the molding device.

[0042] The mixing unit includes a mixing shaft 406, pulley 407, pulley 408, belt 409, rotating shaft 410, motor 411, and mixing rod 413. A support plate 2 is externally connected to the bleaching tank 401. Motor 411 is fixedly mounted on the support plate 2. Rotating shaft 410 is coaxially fixedly mounted on the output shaft of motor 411. Pulley 408 is coaxially fixedly mounted on rotating shaft 410. The mixing shaft 406 is rotatably mounted on the bleaching tank 401. Inside, pulley 5 407 is coaxially fixedly installed on stirring shaft 406. Pulley 5 407 and pulley 6 408 are connected by belt 3 409. Stirring rod 413 is fixedly installed on stirring shaft 406. Multiple stirring rods 413 are provided, and each stirring rod 413 is provided with multiple liquid spraying ports. Stirring shaft 406 is provided with liquid inlet. The liquid spraying ports are connected to the liquid inlet. Stirring shaft 406 is connected to a liquid delivery device, which stores bleach.

[0043] This invention also provides a method for preparing environmentally friendly household paper using an environmentally friendly household paper preparation device, comprising the following steps:

[0044] S1. The pulp used for preparing paper pulp is injected into the pulping unit through a feeding device, and water is injected into the pulping unit through a water injection device. The pulp in the pulping unit is fully pulped by the drive unit, which improves the pulping efficiency and pulping quality and can quickly form the required paper pulp.

[0045] S2. The pulp enters the screening unit. Through the cooperation of the screening unit and the power unit, the pulp can be screened in multiple stages. By using centrifugal force and gravity, large-sized materials can be screened out efficiently, thereby improving screening efficiency while ensuring pulp quality.

[0046] S3. After the pulp screening is completed and no more pulp enters the screening box 301, the impurity removal unit can remove the large-sized impurities remaining at both ends of the screening box 301 at the same time, thereby ensuring the subsequent screening of pulp. This solves the problem of the screening device being difficult to clean in the prior art, and can greatly reduce the workload of the user.

[0047] S4. After screening, the pulp enters the bleaching unit. With the cooperation of the stirring unit and the bleaching unit, the pulp can be bleached thoroughly and evenly, which improves the bleaching effect, thereby making the paper pure in color and minimizing the environmental impact.

[0048] S5. After bleaching, the pulp enters the forming device for forming, and after forming, it enters the drying device for drying, thus obtaining the required environmentally friendly household paper.

[0049] When the pulping unit and drive unit are working: the feeding device feeds the pulp into the pulping box 201 through the feed pipe 1 204 and the feed pipe 2 206; the water injection device 1 feeds water into the pulping box 201 through the water inlet pipe 1 205; the output shaft of the motor 1 211 drives the pulley 2 209 to rotate through the rotating shaft 1 210; the pulley 2 209 drives the pulley 207 to rotate through the belt 1 208; the pulley 207 drives the pulping blade to rotate through the pulping shaft 216; the rotation of the pulping blade further breaks down the pulp in the pulping box 201 into fine fibers, and an appropriate amount of water is added to form pulp; the pump 1 feeds the pulp in the pulping box 201 into the screening box 301 through the feed pipe 4 215, the feed pipe 3 213, the feed pipe 5 308, and the feed pipe 6 309.

[0050] When the screening unit and power unit are working: Pulp enters the screening box 301 through the feed pipe 309 along the tangential direction inside the screening box 301. The output shaft of motor 311 drives pulley 312 to rotate. Pulp 312 drives pulley 314 to rotate through belt 313. Pulp 314 drives rotating wheel 318 and distribution shaft 330 to rotate through shaft 317. When the pulp fills the space between the impurity removal cylinder 328 and the screening box 301, the pulp enters the space between the distribution shaft 330 and the impurity removal cylinder 328. Due to the rotation of the distribution shaft 330, the pulp rotates under the action of centrifugal force. Some large-sized substances in the pulp are precipitated into the space between the impurity removal cylinder 328 and the screening box 301. The pulp then enters the space between the distribution shaft 328 and the screening box 301. After the material distribution shaft 330 and the screening cylinder 329 are connected, the qualified pulp flows out through the screening cylinder 329 under the action of the material distribution shaft 330 and the screening cylinder 329, and the large-sized material falls onto the impurity removal plate 319 below the screening cylinder 329; the pumping pump 4 draws the qualified pulp into the bleaching tank 401 through the feed pipe 7 322, feed pipe 8 404, and feed pipe 9 405; the pumping pump 3 sucks out the large-sized material impurities that have settled in the space between the impurity removal cylinder 328 and the screening tank 301 through the discharge pipe 2 323, and the pumping pump 2 sucks out the material impurities that have settled on the impurity removal plate 319 through the discharge pipe 1 321. When it is necessary to dilute the concentration of the pulp, the water injection device 2 injects water into the screening tank 301 through the water inlet pipe 2 325, thereby diluting the concentration of the pulp in the screening tank 301.

[0051] When the impurity removal unit is working: after the pulp screening is completed and no more pulp enters the screening box 301, the output shaft of motor 315 drives the lead screw 305 to rotate. When the lead screw 305 rotates, it drives the connecting plate 326 to rise through the connecting plate 2 324. It drives the impurity removal plate 319 and the rotating wheel 318 to slide down through the connecting plate 1 320. When the connecting plate 2 324 rises, it drives the feed pipe 322 to rise through the connecting plate 326 and the connecting rod 327, thereby separating the feed pipe 322 and the impurity removal plate 319 from the screening box 301, and removing the residual impurities on the feed pipe 322 and the impurity removal plate 319 to facilitate the subsequent screening of pulp.

[0052] When the mixing and bleaching units are working: After the pulp enters the bleaching tank 401, the output shaft of motor 411 drives pulley 408 to rotate through shaft 410. Pulp 408 drives pulley 407 to rotate through belt 409. Pulp 407 drives the mixing shaft 406 to rotate. The bleaching liquid is injected through the mixing shaft 406 by the injection device. When the mixing shaft 406 rotates, it drives multiple mixing rods 413 to rotate. When the mixing rods 413 rotate, the bleaching liquid is sprayed out through the spray nozzle, which facilitates the thorough bleaching of the pulp in the bleaching tank 401 and improves the bleaching efficiency and bleaching quality.

[0053] The working principle of this invention is as follows: the pulp (including new wood pulp and recycled pulp) used to prepare paper pulp is injected into the pulping unit through a feeding device, and water is injected into the pulping unit through a water injection device. The pulp in the pulping unit is fully pulped by the driving unit, which improves the pulping efficiency and pulping quality, and can quickly form the required paper pulp.

[0054] The pulp enters the screening unit, where it is screened in multiple stages through the cooperation of the screening unit and the power unit. The centrifugal force and gravity are used to efficiently screen out large-sized materials, thereby improving screening efficiency while ensuring pulp quality. After the pulp screening is completed and no more pulp enters the screening box 301, the impurity removal unit can remove the large-sized impurities remaining at both ends of the screening box 301, thus ensuring the screening of subsequent pulp. This solves the problem of inconvenient cleaning in existing screening devices and greatly reduces the workload of users.

[0055] After screening, the pulp enters the bleaching unit. With the cooperation of the stirring unit and the bleaching unit, the pulp can be bleached thoroughly and evenly, improving the bleaching effect. It should be noted that the bleaching agent used in this embodiment is an environmentally friendly bleaching agent, namely hydrogen peroxide bleaching agent, which can make the paper color pure and minimize the environmental impact.

[0056] After bleaching, the pulp enters the forming device for forming, and then enters the drying device for drying, thus obtaining the desired environmentally friendly household paper.

Claims

1. An environmentally friendly household paper production device, comprising a support frame (101), a feeding device connected to one side of the support frame (101), a forming device connected to the other side of the support frame (101), a drying device connected to the forming device, and a material dispensing and packaging device connected to the drying device, characterized in that, A pulping device, a purification device, and a bleaching device are sequentially connected between the feeding device and the forming device. The pulping device, purification device, and bleaching device are all mounted on a support frame (101). The pulping device includes a drive unit and a pulping unit. The pulping unit is mounted on the support frame (101), and the drive unit is mounted on the pulping unit. The purification device includes a screening unit, a power unit, and a purification unit. The screening unit and the power unit are both mounted on the support frame (101). The screening unit and the power unit are connected, and the purification unit is mounted on the screening unit. The bleaching device includes a stirring unit and a bleaching unit. The bleaching unit is mounted on the support frame (101), and the stirring unit is mounted on the bleaching unit. The pulping unit is connected to the feeding device. The pulping unit and the bleaching unit are connected through the screening unit. The bleaching unit is connected to the forming device. The screening unit includes a screening box (301), a feed pipe six (309), a cleaning cylinder (328), a screening cylinder (329), a distributing shaft (330), a connecting plate four (331), and a cleaning plate two (332). The feed pipe six (309) is inclined. The connecting plate four (331) is fixedly installed in the screening box (301). The cleaning plate two (332) is slidably installed in the screening box (301). Initially, the cleaning plate two (332) is in contact with the connecting plate four (331). The cleaning cylinder (328) is fixedly installed on the cleaning plate two (332). The screening cylinder (329) is fixedly installed below the connecting plate four (331). The screening cylinder (329) is provided with multiple filter holes. The distributing shaft (330) is coaxially rotatably installed in the screening box (301). The power unit includes a second motor (311), a second rotating shaft (317), a rotating wheel (318), and a first impurity removal plate (319). The second rotating shaft (317) is coaxially fixedly installed inside the material distribution shaft (330). The rotating wheel (318) is connected to the second rotating shaft (317) via a spline. The first impurity removal plate (319) is slidably installed at the bottom of the screening box (301). The rotating wheel (318) is rotatably connected to the first impurity removal plate (319). The impurity removal unit includes a guide rod (304), a lead screw (305), a third motor (315), a first connecting plate (320), a second connecting plate (324), a third connecting plate (326), and a connecting rod (327). The lead screw (305) is coaxially and fixedly connected to the output shaft of the third motor (315). The guide rod (304) is fixedly connected to the support frame (101). The second connecting plate (324) is slidably mounted on the guide rod (304). The connecting rod (327) is fixedly mounted on the second impurity removal plate (332). The third connecting plate (320) is slidably mounted on the second connecting plate (326). 326) is fixedly installed on the connecting rod (327). The second connecting plate (324) is coaxially fixedly connected to the third connecting plate (326). The first connecting plate (320) is coaxially fixedly installed on the first impurity removal plate (319). The first connecting plate (320) is slidably connected to the guide rod (304). The lead screw (305) is provided with two sections of threads with opposite spiral directions. The first connecting plate (320) is threadedly connected to one section of the lead screw (305). The second connecting plate (324) is threadedly connected to the other section of the lead screw (305).

2. The environmentally friendly household paper production equipment as described in claim 1, characterized in that, The pulping unit includes a pulping box (201), a first support base (202), a second support base (203), a first feed pipe (204), a first water inlet pipe (205), a second feed pipe (206), a third support base (212), a third feed pipe (213), a fourth support base (214), and a fourth feed pipe (215). The first support base (202), the third support base (212), and the fourth support base (214) are all fixedly mounted on a support frame (101). The pulping box (201) and the second support base (203) are both fixedly mounted on the first support base (202). The first feed pipe (204), the first water inlet pipe (205), and the second feed pipe (206) are all fixedly mounted on the first support base (206). Feed pipe two (206) is fixedly installed on support base two (203). Feed pipe one (204), water inlet pipe one (205) and feed pipe two (206) are all connected to pulp box (201). Feed pipe four (215) is fixedly installed on support base four (214). Feed pipe three (213) is fixedly installed on support base three (212). Feed pipe four (215) is connected to the lower end of pulp box (201). Feed pipe three (213) is connected to feed pipe four (215). Feed pump one is installed on feed pipe four (215). Water inlet pipe one (205) is connected to water injection device one.

3. The environmentally friendly household paper production equipment as described in claim 2, characterized in that, The drive unit includes a second pulley (209), a first rotating shaft (210), a first motor (211), and a pulping shaft (216). The first motor (211) is fixedly mounted on a first support base (202). The third support base (212) is coaxially fixedly mounted on the output shaft of the first motor (211). The second pulley (209) is coaxially fixedly mounted on the first rotating shaft (210). The pulping shaft (216) is coaxially rotatably mounted inside the pulping box (201). The pulping shaft (216) is provided with pulping blades. The first pulley (207) is coaxially fixedly mounted on the pulping shaft (216). The first belt (208) connects the first pulley (207) and the second pulley (209).

4. The environmentally friendly household paper production equipment as described in claim 3, characterized in that, The screening unit also includes support base five (302), support base eight (307), feed pipe five (308), discharge pipe one (321), feed pipe seven (322), and discharge pipe two (323). Support base five (302) and support base eight (307) are both fixedly installed on the support frame (101). The screening box (301) is fixedly installed on support base five (302), and feed pipe five (308) is fixedly installed on the support frame (101). On seat 8 (307), the feed pipe 6 (309), the discharge pipe 1 (321), the feed pipe 7 (322), and the discharge pipe 2 (323) are all fixedly installed on the screening box (301). The feed pipe 5 (308) is connected to the feed pipe 6 (309). The discharge pipe 1 (321) is equipped with a second pump, the discharge pipe 2 (323) is equipped with a third pump, and the feed pipe 7 (322) is equipped with a fourth pump.

5. The environmentally friendly household paper production equipment as described in claim 4, characterized in that, The power unit also includes a support base nine (310), a pulley three (312), a belt two (313), and a pulley four (314). The support base nine (310) is fixedly installed on the support frame (101). The motor two (311) is fixedly installed on the support base nine (310). The pulley three (312) is fixedly installed on the output shaft of the motor two (311). The pulley four (314) is coaxially fixedly installed on the rotating shaft two (317). The pulley three (312) and the pulley four (314) are connected by the belt two (313). The rotating shaft two (317) is rotatably connected to the support plate one externally connected to the support frame (101).

6. The environmentally friendly household paper production equipment as described in claim 5, characterized in that, The impurity removal unit also includes support seat six (303), support seat seven (306), support seat ten (316), and water inlet pipe two (325). Support seat six (303) and support seat seven (306) are both fixedly installed on support seat five (302). Support seat six (303) and support seat seven (306) are respectively distributed on both sides of the screening box (301). The guide rod (304) is fixedly installed on support seat six (303). The lead screw (305) is rotatably installed on support seat seven (306). Support seat ten (316) is fixedly installed on support frame (101). Motor three (315) is fixedly installed on support seat ten (316). Water inlet pipe two (325) is coaxially fixedly installed on connecting plate three (326). Water inlet pipe two (325) is externally connected to water injection device two.

7. The environmentally friendly household paper production equipment as described in claim 6, characterized in that, The bleaching unit includes a bleaching tank (401), a first support rod (402), a second support rod (403), an eighth feed pipe (404), a ninth feed pipe (405), and a third discharge pipe (412). The bleaching tank (401) is fixedly connected to the support frame (101) via the first support rod (402). The second support rod (403) is fixedly installed on the support frame (101). The ninth feed pipe (405) and the third discharge pipe (412) are both... The feed pipe nine (405) and the discharge pipe three (412) are fixedly installed on the bleaching box (401). The feed pipe nine (405) and the discharge pipe three (412) are respectively set on both sides of the bleaching box (401). One end of the feed pipe eight (404) is fixedly connected to the feed pipe nine (405), and the other end of the feed pipe eight (404) is fixedly connected to the feed pipe seven (322). The discharge pipe three (412) is equipped with a pump five and is connected to the molding device.

8. The environmentally friendly household paper production equipment as described in claim 7, characterized in that, The stirring unit includes a stirring shaft (406), pulley five (407), pulley six (408), belt three (409), rotating shaft three (410), motor four (411), and stirring rod (413). A support plate two is externally connected to the bleaching tank (401). Motor four (411) is fixedly mounted on the support plate two. Rotating shaft three (410) is coaxially fixedly mounted on the output shaft of motor four (411). Pulley six (408) is coaxially fixedly mounted on rotating shaft three (410). The stirring shaft (406) is rotatably mounted on the bleaching tank (401). 1) Inside, the pulley five (407) is coaxially fixedly installed on the stirring shaft (406). The pulley five (407) and the pulley six (408) are connected by the belt three (409). The stirring rod (413) is fixedly installed on the stirring shaft (406). There are multiple stirring rods (413). Each stirring rod (413) is provided with multiple spray nozzles. The stirring shaft (406) is provided with a liquid inlet. The spray nozzles are connected to the liquid inlet. The stirring shaft (406) is connected to a liquid delivery device. The liquid delivery device stores bleach.

9. A method for preparing environmentally friendly household paper using the environmentally friendly household paper preparation equipment as described in claim 8, characterized in that, Includes the following steps: S1. The pulp used for preparing paper pulp is injected into the pulping unit through a feeding device, and water is injected into the pulping unit through a water injection device. The pulp in the pulping unit is fully pulped by the drive unit. S2. The pulp enters the screening unit. Through the cooperation of the screening unit and the power unit, the pulp can be screened in multiple stages. Large-sized materials can be screened out by using centrifugal force and gravity. S3. After the pulp screening is completed and no more pulp enters the screening box (301), the impurity removal unit can simultaneously remove the large-sized impurities remaining at both ends of the screening box (301). S4. After screening, the pulp enters the bleaching unit. With the cooperation of the stirring unit and the bleaching unit, the pulp can be bleached thoroughly and evenly. S5. After bleaching, the pulp enters the forming device for forming, and after forming, it enters the drying device for drying, thus obtaining the required environmentally friendly household paper.

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