High-moisture-content wet sludge low-temperature drying and fusion treatment method

Abstract

The present application belongs to the field of environmental protection technology, especially a kind of high moisture content wet sludge low temperature drying fusion treatment method, to the problem of the existing drying needs to spend a lot of energy, low drying efficiency, the present application proposes the following scheme, it includes the following steps: S1: preparation drying agent, drying agent includes 5%~10% iron oxide, 1%~2% manganese dioxide, 5%~10% sulfuric acid, 15%~20% aluminum sulfate octadecahydrate, 0.2%~1.0% sodium pyrophosphate decahydrate, 20%~40% hydrogen peroxide and the balance of water;S2: the sulfuric acid is evenly divided into six parts, four parts of sulfuric acid is added to iron oxide, and stirring reaction is carried out, after reaction is completed, it is reserved, one portion of sulfuric acid is added to manganese dioxide, the drying agent can increase the efficiency of high moisture content wet sludge drying, so that high moisture content wet sludge can automatically discharge the internal moisture, without using energy drying, and through low temperature drying device, high moisture content wet sludge can be dehydrated and dried.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental protection, and in particular to a high-moisture-content wet sludge low-temperature drying fusion treatment method. BACKGROUND

[0002] A patent with application number 202111125857.2 discloses a sludge low-temperature drying system and drying method. The drying system includes a noodle machine for processing wet sludge with a water content of 80%-60% (by weight) into noodles, a low-temperature jet drying unit for reducing the water content of the wet sludge to 10%-50% (by weight), a low-temperature waste heat drying unit for reducing the water content of the wet sludge to below 10% (by weight), and a closed belt conveyor for feeding the wet sludge preliminarily dried by the low-temperature jet drying unit into the low-temperature waste heat drying unit for further drying. The sludge low-temperature drying system of the present application is in a closed space as a whole, which reduces energy loss during the sludge low-temperature drying process, prevents odor from overflowing, and affects the environment. At the same time, the present application cooperates the noodle machine with the low-temperature jet drying unit and the low-temperature waste heat drying unit, which can improve the drying efficiency, avoid dust explosion, and effectively reduce the amount of H2S and NH3 released.

[0003] However, the sludge low-temperature drying system and drying method also have some problems, for example, a large amount of energy is needed to dry the high-moisture-content wet sludge, which results in high drying cost of the high-moisture-content wet sludge, and the drying effect is low, which affects the drying efficiency. SUMMARY

[0004] Based on the problems of high energy consumption and low drying efficiency in the background art, the present application proposes a high-moisture-content wet sludge low-temperature drying fusion treatment method.

[0005] The high-moisture-content wet sludge low-temperature drying fusion treatment method proposed by the present application includes the following steps:

[0006] S1: preparing a drying agent, the drying agent including 5%-10% of iron oxide, 1%-2% of manganese dioxide, 5%-10% of sulfuric acid, 15%-20% of aluminum sulfate octadecahydrate, 0.2%-1.0% of sodium pyrophosphate decahydrate, 20%-40% of hydrogen peroxide, and the balance of water;

[0007] S2: dividing the sulfuric acid into six equal parts, adding four parts of the sulfuric acid to the iron oxide and stirring to react, reserving the reacted sulfuric acid, and adding one part of the sulfuric acid to the manganese dioxide and stirring to react, reserving the reacted sulfuric acid;

[0008] S3: Pour the above two reactants into a reaction vessel, then add aluminum sulfate octadechydrate, sodium pyrophosphate decahydrate and water, stir for 1 to 2 hours, let stand for 24 to 48 hours after stirring, then spray in the remaining sulfuric acid, stir for 1 hour, add hydrogen peroxide and stir slowly until uniform to obtain a dry reagent.

[0009] S4: Spread the high-moisture-content wet sludge evenly on the low-temperature drying device to form a thin layer of high-moisture-content wet sludge. Then pour the drying agent into the spraying equipment and use the spraying equipment to evenly spray the drying agent onto the thin layer of high-moisture-content wet sludge, causing the moisture in the high-moisture-content wet sludge to seep out.

[0010] Preferably, in step S2, during configuration, the operator wears a self-priming filter dust mask, chemical safety goggles, anti-toxic work clothes, and rubber gloves to ensure the operator's safety.

[0011] Preferably, in step S3, after adding the two reactants, the stirring speed of the reactor is controlled at 320 r / min to 350 r / min, and the stirring temperature is controlled at 35℃ to 45℃, to facilitate uniform mixing.

[0012] Preferably, in step S3, after adding sulfuric acid, the stirring speed of the reactor is controlled at 420 r / min to 550 r / min, and the stirring temperature is controlled at 45℃ to 55℃, which allows the sulfuric acid to dissolve into the solution and can be used to adjust the pH value.

[0013] Preferably, in step S3, before adding hydrogen peroxide, the stirring speed of the reactor is controlled at 30 r / min to 60 r / min, and the stirring temperature is controlled at 25℃ to 35℃ to ensure the effectiveness of drying the reagent.

[0014] Preferably, the low-temperature drying device includes a square frame, with a paving plate hinged to the left side of the top of the square frame and a transmission box bolted to the right side of the square frame.

[0015] A power motor is bolted to the right side inside the transmission box. The output end of the power motor is connected to a rotating shaft via a coupling. The left end of the rotating shaft extends to the bottom of the square frame and is bolted with a fan blade.

[0016] The top of the transmission box is hingedly connected with a transmission frame, the left end of the transmission frame is hingedly connected with a hinged frame, the top end of the hinged frame is hingedly connected with the right end of the paving plate, the surface of the rotating shaft is internally keyed with a transmission mechanism, the rear side of the transmission mechanism is bolted with a reciprocating mechanism, the reciprocating mechanism is hingedly connected with the transmission frame, the high water content wet sludge is paved on the paving plate, the power motor is connected with the power supply, the power motor can drive the rotating shaft to rotate, the rotating shaft can drive the fan blade to rotate, the rapid rotation of the fan blade can generate airflow, the rotating shaft can drive the transmission mechanism to rotate, the transmission mechanism drives the reciprocating mechanism to rotate, the reciprocating mechanism can drive the transmission frame to reciprocate, the transmission frame can drive the hinged frame to move up and down, and the hinged frame can drive the paving plate to vibrate up and down.

[0017] Preferably, the transmission mechanism comprises a main bevel gear, a secondary bevel gear and a transmission assembly;

[0018] The surface of the rotating shaft is internally keyed with the axis of the main bevel gear, the teeth of the main bevel gear are engaged with the teeth of the secondary bevel gear, the secondary bevel gear is bolted with the transmission assembly, the rotating shaft can drive the main bevel gear to rotate, the main bevel gear can drive the secondary bevel gear to rotate, the secondary bevel gear is rotatably arranged in the transmission box through a bearing, the stability of the rotation of the secondary bevel gear is ensured, the size of the main bevel gear is larger than that of the secondary bevel gear, an acceleration effect can be generated, and the secondary bevel gear can drive the large chain wheel to rotate.

[0019] Preferably, the transmission assembly comprises a large chain wheel, a chain and a small chain wheel;

[0020] The rear side of the secondary bevel gear is bolted with the surface of the large chain wheel, the axis of the large chain wheel is rotatably connected with the inside of the transmission box, the teeth of the large chain wheel are engaged with the top end inside the chain, the bottom end inside the chain is engaged with the teeth of the small chain wheel, the axis of the small chain wheel is rotatably connected with the inside of the transmission box, the small chain wheel is bolted with the reciprocating mechanism, the secondary bevel gear can drive the large chain wheel to rotate, the large chain wheel can drive the chain to rotate, the chain can drive the small chain wheel to rotate, the radius of the large chain wheel is twice the radius of the small chain wheel, an acceleration effect can be generated on the small chain wheel, the small chain wheel is rotatably arranged in the transmission box through a bearing, the stability of the rotation of the small chain wheel is ensured, and the small chain wheel can drive the reciprocating mechanism to rotate.

[0021] Preferably, the reciprocating mechanism comprises an eccentric wheel, a connecting ring, a fan-shaped toothed disc, a rack and a movable frame;

[0022] The bottom end of the shaft center of the small sprocket rear side is bolted with the eccentric wheel shaft center, the outer side of the eccentric wheel is rotatably sleeved with the inner part of the connecting ring, the left end of the connecting ring is hinged with the top end of the sector gear, the shaft center of the sector gear is rotatably connected with the inner part of the transmission box, the gear teeth of the sector gear bottom are engaged with the gear teeth of the rack, the right end of the rack is hinged with the left end of the movable frame, the right end of the movable frame is hinged with the bottom end of the transmission frame, the small sprocket can drive the eccentric wheel to rotate, the eccentric wheel and the small sprocket are eccentric structure, the small sprocket can drive the eccentric wheel to rotate and move left and right, the eccentric wheel rotates in the inner part of the connecting ring and drives the connecting ring to move left and right, the connecting ring is rotatably arranged with the eccentric wheel through the bearing, the transmission resistance is reduced, the connecting ring can drive the sector gear to rotate, the sector gear is rotatably arranged with the transmission box through the bearing, the stability of the sector gear rotation is ensured, the sector gear can drive the rack to move left and right, the rack can drive the movable frame to move left and right, and the movable frame can drive the transmission frame to reciprocate.

[0023] Preferably, the bottom of the rack is slidingly connected with a limiting box, the bottom of the limiting box is bolted with the bottom end inside the transmission box, the right end of the surface of the rotating shaft is rotatably sleeved with the hole of the transmission box, the left end of the rotating shaft is rotatably sleeved with the left side of the bottom of the square frame, the rack is slidingly arranged with the limiting box through the sliding rail, the rack is guided, the left and right movement of the rack is facilitated, the rack drives the movable frame to move left and right, the rotating shaft is rotatably arranged with the transmission box through the bearing, the stability of the rotating shaft rotation is ensured, and the rotating shaft is rotatably arranged with the square frame through the bearing, the stability of the rotating shaft rotation is ensured.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. The dry medicament can be made of iron oxide, manganese dioxide, sulfuric acid, aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate and hydrogen peroxide, and the dry medicament can be used for efficient and low-cost drying of high-moisture wet sludge.

[0026] 2. The power motor drives the fan blades to rotate and drive the airflow to flow, the power mechanism drives the transmission mechanism to rotate through the rotating shaft, the transmission mechanism drives the transmission frame to rotate through the reciprocating mechanism, and the transmission frame drives the paving plate to vibrate through the hinged frame.

[0027] The dry medicament can increase the efficiency of drying high-moisture wet sludge, so that the high-moisture wet sludge can automatically discharge the water inside, without using energy for drying, and the low-temperature drying device can be used for dehydrating and drying the high-moisture wet sludge. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The workflow diagram of the present application is provided;

[0029] Figure 2 The square frame structure diagram of the present application is provided;

[0030] Figure 3 The schematic diagram of the internal structure of the transmission box proposed in the present application is shown in the figure.

[0031] Figure 4 The schematic diagram of the main bevel gear proposed in the present application is shown in the figure.

[0032] Figure 5 The schematic diagram of the transmission frame proposed in the present application is shown in the figure.

[0033] In the figure: 1, square frame; 2, transmission mechanism; 21, main bevel gear; 22, auxiliary bevel gear; 23, large sprocket; 24, chain; 25, small sprocket; 3, reciprocating mechanism; 31, eccentric wheel; 32, connecting ring; 33, sector gear; 34, rack; 35, movable frame; 4, paving plate; 5, transmission box; 6, power motor; 7, rotating shaft; 8, fan blade; 9, transmission frame; 10, hinged frame. DETAILED DESCRIPTION

[0034] The present application will be further described below in combination with specific embodiments.

[0035] Reference Figures 1-5 Example One

[0036] A high-moisture-content wet sludge low-temperature drying and fusion treatment method is proposed in the present embodiment, which comprises the following steps:

[0037] S1: preparing a drying agent, which comprises 10% of iron oxide, 2% of manganese dioxide, 10% of sulfuric acid, 20% of aluminum sulfate octadecahydrate, 1.0% of sodium pyrophosphate decahydrate, 29% of hydrogen peroxide, and the balance of water;

[0038] S2: evenly dividing the sulfuric acid into six portions, adding four portions of the sulfuric acid to the iron oxide and performing stirring reaction, reserving after the reaction is completed, adding one portion of the sulfuric acid to the manganese dioxide and performing stirring reaction, reserving after the reaction is completed, when being configured, the operator wears a self-suction filtering dust mask, wears chemical safety protective glasses, wears an anti-toxic substance permeable work clothes, and wears rubber gloves;

[0039] S3: pouring the above two kinds of reactants into a reaction kettle, after the two kinds of reactants are poured, the stirring speed of the reaction kettle is controlled at 340 r / min, the stirring temperature is controlled at 38℃, then the aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate and water are poured, stirring for 1.5 hours, after the stirring is completed, standing for 32 hours, then spraying the remaining sulfuric acid, after the sulfuric acid is added, the stirring speed of the reaction kettle is controlled at 480 r / min, the stirring temperature is controlled at 49℃, after stirring for 1 hour, the stirring speed of the reaction kettle is controlled at 45 r / min, the stirring temperature is controlled at 31℃, the hydrogen peroxide is added, and slowly stirred uniformly, to obtain the drying agent;

[0040] S4: evenly spread the high-moisture-content wet sludge on the low-temperature drying device to form a high-moisture-content wet sludge thin layer, then pour the drying agent into the spraying equipment, and use the spraying equipment to uniformly spray the drying agent on the high-moisture-content wet sludge thin layer, so that the water in the high-moisture-content wet sludge seeps out.

[0041] Referring to Figures 1-5 , Example Two

[0042] A low-temperature drying and fusion treatment method for high-moisture-content wet sludge is provided in this embodiment, which includes the following steps:

[0043] S1: preparing a drying agent, the drying agent including 8% iron oxide, 1.8% manganese dioxide, 8% sulfuric acid, 18% aluminum sulfate octadecahydrate, 1.0% sodium pyrophosphate decahydrate, 30% hydrogen peroxide, and the balance water;

[0044] S2: evenly divide the sulfuric acid into six portions, add four portions of the sulfuric acid to the iron oxide and perform stirring reaction, reserve after the reaction is completed, add one portion of the sulfuric acid to the manganese dioxide and perform stirring reaction, reserve after the reaction is completed, when configuring, the operator wears a self-suction filtering dust mask, wears chemical safety protective glasses, wears a chemical protective suit, and wears rubber gloves;

[0045] S3: pour the above two reactants into a reaction kettle, after pouring the two reactants, control the stirring speed of the reaction kettle at 340 r / min, and control the stirring temperature at 38℃, then pour the aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate, and water, stir for 1.5 hours, after the stirring is completed, stand for 32 hours, then spray the remaining sulfuric acid, after adding the sulfuric acid, control the stirring speed of the reaction kettle at 480 r / min, and control the stirring temperature at 49℃, after stirring for 1 hour, control the stirring speed of the reaction kettle at 45 r / min, and control the stirring temperature at 31℃, add the hydrogen peroxide and slowly stir to be uniform, to obtain the drying agent;

[0046] S4: evenly spread the high-moisture-content wet sludge on the low-temperature drying device to form a high-moisture-content wet sludge thin layer, then pour the drying agent into the spraying equipment, and use the spraying equipment to uniformly spray the drying agent on the high-moisture-content wet sludge thin layer, so that the water in the high-moisture-content wet sludge seeps out.

[0047] Referring to Figures 1-5 , Example Three

[0048] A low-temperature drying and fusion treatment method for high-moisture-content wet sludge is provided in this embodiment, which includes the following steps:

[0049] S1: preparing a dry medicament, the dry medicament comprising 7% of iron oxide, 1.6% of manganese dioxide, 7% of sulfuric acid, 18% of aluminum sulfate octadecahydrate, 0.6% of sodium pyrophosphate decahydrate, 30% of hydrogen peroxide and the balance of water;

[0050] S2: evenly dividing the sulfuric acid into six portions, adding four portions of the sulfuric acid to the iron oxide and stirring to react, reserving the reaction after completion, adding one portion of the sulfuric acid to the manganese dioxide and stirring to react, reserving the reaction after completion, when configuring, the operator wears a self-suction filter dust mask, wears chemical safety protective glasses, wears a chemical permeable work clothes, and wears rubber gloves;

[0051] S3: pouring the above two reactants into a reaction kettle, after pouring the two reactants, the stirring speed of the reaction kettle is controlled at 340 r / min, the stirring temperature is controlled at 38℃, then aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate and water are poured in, stirring for 1.5 hours, after stirring is completed, standing for 32 hours, then spraying the remaining sulfuric acid, after adding the sulfuric acid, the stirring speed of the reaction kettle is controlled at 480 r / min, the stirring temperature is controlled at 49℃, after stirring for 1 hour, the stirring speed of the reaction kettle is controlled at 45 r / min, the stirring temperature is controlled at 31℃, hydrogen peroxide is added and slowly stirred uniformly to obtain a dry medicament;

[0052] S4: evenly spreading the high-moisture-content wet sludge on a low-temperature drying device to form a high-moisture-content wet sludge thin layer, then pouring the dry medicament into a spraying equipment, and uniformly spraying the dry medicament on the high-moisture-content wet sludge thin layer, so that the water in the high-moisture-content wet sludge seeps out.

[0053] Reference Figures 1-5 Example Four

[0054] A low-temperature drying and fusion treatment method for high-moisture-content wet sludge is provided in the embodiment, which comprises the following steps:

[0055] S1: preparing a dry medicament, the dry medicament comprising 7% of iron oxide, 1.6% of manganese dioxide, 7% of sulfuric acid, 18% of aluminum sulfate octadecahydrate, 0.6% of sodium pyrophosphate decahydrate, 30% of hydrogen peroxide and the balance of water;

[0056] S2: evenly dividing the sulfuric acid into six portions, adding four portions of the sulfuric acid to the iron oxide and stirring to react, reserving the reaction after completion, adding one portion of the sulfuric acid to the manganese dioxide and stirring to react, reserving the reaction after completion, when configuring, the operator wears a self-suction filter dust mask, wears chemical safety protective glasses, wears a chemical permeable work clothes, and wears rubber gloves;

[0057] S3: Pour the above two reactants into the reaction kettle, after pouring the two reactants, control the stirring speed of the reaction kettle at 340 r / min, control the stirring temperature at 38°C, then pour in aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate and water, stir for 1.5 hours, after stirring is completed, stand for 32 hours, then spray the remaining sulfuric acid, after adding sulfuric acid, control the stirring speed of the reaction kettle at 480 r / min, control the stirring temperature at 49°C, after stirring for 1 hour, control the stirring speed of the reaction kettle at 45 r / min, control the stirring temperature at 31°C, add hydrogen peroxide and slowly stir evenly to obtain a dry medicament;

[0058] S4: Spread the high-moisture wet sludge evenly on the low-temperature drying device to form a high-moisture wet sludge thin layer, then pour the dry medicament into the spraying equipment, and evenly spray the dry medicament on the high-moisture wet sludge thin layer, and the water in the high-moisture wet sludge seeps out.

[0059] Reference Figures 1-5 Example five

[0060] A low-temperature drying and integrated treatment method for high-moisture wet sludge is provided in this embodiment, which includes the following steps:

[0061] S1: Prepare a dry medicament, which includes 5% iron oxide, 1% manganese dioxide, 5% sulfuric acid, 15% aluminum sulfate octadecahydrate, 0.2% sodium pyrophosphate decahydrate, 40% hydrogen peroxide and the balance of water;

[0062] S2: Divide the sulfuric acid into six equal parts, add four parts of the sulfuric acid to the iron oxide and stir to react, then reserve after the reaction is completed, add one part of the sulfuric acid to the manganese dioxide and stir to react, then reserve after the reaction is completed, when preparing, the operator wears a self-suction filter dust mask, chemical safety protective glasses, a chemical protective suit and rubber gloves;

[0063] S3: Pour the above two reactants into the reaction kettle, after pouring the two reactants, control the stirring speed of the reaction kettle at 340 r / min, control the stirring temperature at 38°C, then pour in aluminum sulfate octadecahydrate, sodium pyrophosphate decahydrate and water, stir for 1.5 hours, after stirring is completed, stand for 32 hours, then spray the remaining sulfuric acid, after adding sulfuric acid, control the stirring speed of the reaction kettle at 480 r / min, control the stirring temperature at 49°C, after stirring for 1 hour, control the stirring speed of the reaction kettle at 45 r / min, control the stirring temperature at 31°C, add hydrogen peroxide and slowly stir evenly to obtain a dry medicament;

[0064] S4: evenly spread the high-moisture-content wet sludge on the low-temperature drying device to form a high-moisture-content wet sludge thin layer, then pour the drying agent into the spraying device, and use the spraying device to evenly spray the drying agent on the high-moisture-content wet sludge thin layer, so that the water in the high-moisture-content wet sludge seeps out.

[0065] The low-temperature drying device comprises a square frame 1, a paving plate 4 hinged to the left top of the square frame 1, a transmission box 5 bolted to the right of the square frame 1, a power motor 6 bolted to the right inside of the transmission box 5, a rotating shaft 7 connected to the output end of the power motor 6 through a shaft coupling, a fan blade 8 bolted to the left end of the rotating shaft 7 and extending to the bottom of the square frame 1, a transmission frame 9 hinged to the top of the transmission box 5, a hinge frame 10 hinged to the left end of the transmission frame 9 and the right end of the paving plate 4, a transmission mechanism 2 keyed to the surface of the rotating shaft 7 and located inside the transmission box 5, and a reciprocating mechanism 3 bolted to the rear side of the transmission mechanism 2 and hinged to the transmission frame 9.The bottom end of the shaft core of the small sprocket 25 at the rear side is connected with the eccentric wheel 31, the outer side of the eccentric wheel 31 is rotatably connected with the inner side of the connecting ring 32, the left end of the connecting ring 32 is hingedly connected with the top end of the sector gear 33, the shaft core of the sector gear 33 is rotatably connected with the inner side of the transmission box 5, the gear teeth at the bottom of the sector gear 33 are meshed with the gear teeth of the rack 34, the right end of the rack 34 is hingedly connected with the left end of the movable frame 35, the right end of the movable frame 35 is hingedly connected with the bottom end of the transmission frame 9, the small sprocket 25 can drive the eccentric wheel 31 to rotate, the small sprocket 25 and the eccentric wheel 31 are eccentrically arranged, the small sprocket 25 can drive the eccentric wheel 31 to move left and right during rotation, the eccentric wheel 31 rotates in the connecting ring 32 and drives the connecting ring 32 to move left and right, the connecting ring 32 is rotatably arranged with the eccentric wheel 31 through a bearing, so that the transmission resistance is reduced, the connecting ring 32 can drive the sector gear 33 to rotate, the sector gear 33 is rotatably arranged with the transmission box 5 through a bearing, so that the stability of the rotation of the sector gear 33 is ensured, the sector gear 33 can drive the rack 34 to move left and right, the rack 34 can drive the movable frame 35 to move left and right, the movable frame 35 can drive the transmission frame 9 to reciprocate, the bottom of the rack 34 is slidably connected with the limiting frame, the bottom of the limiting frame is connected with the bottom end in the transmission box 5, the right end on the surface of the rotating shaft 7 is rotatably connected with the hole of the transmission box 5, the left end of the rotating shaft 7 is rotatably connected with the left side of the bottom of the square frame 1, the rack 34 is slidably arranged with the limiting frame through a sliding rail, so that the rack 34 is guided, the left and right movement of the rack 34 is facilitated, the rack 34 drives the movable frame 35 to move left and right is facilitated, the rotating shaft 7 is rotatably arranged with the transmission box 5 through a bearing, so that the stability of the rotation of the rotating shaft 7 is ensured, the rotating shaft 7 is rotatably arranged with the square frame 1 through a bearing, so that the stability of the rotation of the rotating shaft 7 is ensured.

[0066] Compared with the conventional dry fusion treatment method and the dry fusion treatment methods prepared in Examples 1 to 5, the dry fusion treatment methods prepared in Examples 1 to 5 are as follows:

[0067] Example One Example Two Example Three Example Four Example Five Energy consumption reduced relative to comparative example 76% 77% 76% 75% 73% Dehydration efficiency improved relative to comparative example 103% 105% 103% 101% 96%

[0068] The comparative example is a patent with application number 202111125857.2.

[0069] From the above table, it can be seen that the dry fusion treatment method prepared by the present application has low energy consumption, high dry efficiency, and the second implementation is the best embodiment.

[0070] Working principle: the high moisture content wet sludge is spread on the spreading plate 4, the power motor 6 is connected to the power supply, the power motor 6 can drive the rotating shaft 7 to rotate, the rotating shaft 7 can drive the fan blade 8 to rotate, the rapid rotation of the fan blade 8 can produce airflow, the rotating shaft 7 can drive the main bevel gear 21 to rotate, the main bevel gear 21 can drive the auxiliary bevel gear 22 to rotate, the auxiliary bevel gear 22 is rotatably arranged with the transmission box 5 through the bearing, the stability of the auxiliary bevel gear 22 is ensured, the size of the main bevel gear 21 is larger than that of the auxiliary bevel gear 22, the acceleration effect can be generated, the auxiliary bevel gear 22 can drive the large chain wheel 23 to rotate, the large chain wheel 23 can drive the chain 24 to rotate, the chain 24 can drive the small chain wheel 25 to rotate, the radius of the large chain wheel 23 is twice that of the small chain wheel 25, the acceleration effect can be generated to the small chain wheel 25, the small chain wheel 25 is rotatably arranged with the transmission box 5 through the bearing, the stability of the small chain wheel 25 is ensured, the small chain wheel 25 can drive the eccentric wheel 31 to rotate, the eccentric wheel 31 and the small chain wheel 25 are eccentrically arranged, the small chain wheel 25 can drive the eccentric wheel 31 to rotate and move left and right, the eccentric wheel 31 rotates inside the connecting ring 32 and drives the connecting ring 32 to move left and right, the connecting ring 32 is rotatably arranged with the eccentric wheel 31 through the bearing, the transmission resistance is reduced, the connecting ring 32 can drive the fan-shaped tooth disc 33 to rotate, the fan-shaped tooth disc 33 is rotatably arranged with the transmission box 5 through the bearing, the stability of the fan-shaped tooth disc 33 is ensured, the fan-shaped tooth disc 33 can drive the rack 34 to move left and right, the rack 34 can drive the movable frame 35 to move left and right, the movable frame 35 can drive the transmission frame 9 to reciprocate, the transmission frame 9 can drive the hinged frame 10 to move up and down, the hinged frame 10 can drive the spreading plate 4 to vibrate up and down.

[0071] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A method for low-temperature drying and fusion treatment of wet sludge with high moisture content, characterized in that, Includes the following steps: S1: Prepare a drying agent, which includes 5%–10% iron oxide, 1%–2% manganese dioxide, 5%–10% sulfuric acid, 15%–20% aluminum sulfate octadechydrate, 0.2%–1.0% sodium pyrophosphate decahydrate, 20%–40% hydrogen peroxide, and the balance being water. S2: Divide the sulfuric acid into six equal parts. Add four parts of the sulfuric acid to iron oxide and stir to react. Set aside after the reaction is complete. Add one part of the sulfuric acid to manganese dioxide and stir to react. Set aside after the reaction is complete. S3: Pour the above two reactants into a reaction vessel, then add aluminum sulfate octadechydrate, sodium pyrophosphate decahydrate and water, stir for 1 to 2 hours, let stand for 24 to 48 hours after stirring, then spray in the remaining sulfuric acid, stir for 1 hour, add hydrogen peroxide and stir slowly until uniform to obtain a dry reagent. S4: Spread the high moisture content wet sludge evenly on the low temperature drying device to form a thin layer of high moisture content wet sludge. Then pour the drying agent into the spraying equipment and use the spraying equipment to spray the drying agent evenly on the thin layer of high moisture content wet sludge, and the water in the high moisture content wet sludge seeps out. The low-temperature drying device includes a square frame (1), with a paving plate (4) hinged to the left side of the top of the square frame (1) and a transmission box (5) bolted to the right side of the square frame (1). A power motor (6) is bolted to the right side inside the transmission box (5). The output end of the power motor (6) is connected to a rotating shaft (7) via a coupling. The left end of the rotating shaft (7) extends to the bottom of the square frame (1) and is bolted with a fan blade (8). A transmission frame (9) is hinged to the top of the transmission box (5), and a hinge frame (10) is hinged to the left end of the transmission frame (9). The top of the hinge frame (10) is hinged to the right end of the paving plate (4). A transmission mechanism (2) is keyed to the surface of the rotating shaft (7) and located inside the transmission box (5). A reciprocating mechanism (3) is bolted to the rear side of the transmission mechanism (2). The reciprocating mechanism (3) is hinged to the transmission frame (9). The transmission mechanism (2) includes a main bevel gear (21), a secondary bevel gear (22), and a transmission assembly; The surface of the rotating shaft (7) and the inside of the transmission box (5) are keyed to the shaft of the main bevel gear (21). The teeth of the main bevel gear (21) mesh with the teeth of the secondary bevel gear (22). The secondary bevel gear (22) is bolted to the transmission assembly. The transmission assembly includes a large sprocket (23), a chain (24), and a small sprocket (25); The rear side of the secondary bevel gear (22) is bolted to the surface of the large sprocket (23). The shaft of the large sprocket (23) is rotatably connected to the inside of the transmission box (5). The teeth of the large sprocket (23) mesh with the top end of the chain (24). The bottom end of the chain (24) meshes with the teeth of the small sprocket (25). The shaft of the small sprocket (25) is rotatably connected to the inside of the transmission box (5). The small sprocket (25) is bolted to the reciprocating mechanism (3). The reciprocating mechanism (3) includes an eccentric wheel (31), a connecting ring (32), a sector toothed disc (33), a rack (34), and a movable frame (35). The small sprocket (25) is bolted to the bottom of the eccentric wheel (31) at the rear of the shaft. The outer side of the eccentric wheel (31) is rotated and sleeved with the inside of the connecting ring (32). The left end of the connecting ring (32) is hinged to the top of the fan-shaped toothed disc (33). The shaft of the fan-shaped toothed disc (33) is rotated and connected with the inside of the transmission box (5). The teeth at the bottom of the fan-shaped toothed disc (33) mesh with the teeth of the rack (34). The right end of the rack (34) is hinged to the left end of the movable frame (35). The right end of the movable frame (35) is hinged to the bottom end of the transmission frame (9).

2. The method for low-temperature drying and fusion treatment of high-moisture-content wet sludge according to claim 1, characterized in that, In S2, during configuration, the operator wears a self-priming filter dust mask, chemical safety goggles, protective clothing against toxic substances, and rubber gloves.

3. The method for low-temperature drying and fusion treatment of high-moisture-content wet sludge according to claim 1, characterized in that, In step S3, after the two reactants are added, the stirring speed of the reactor is controlled at 320 r / min to 350 r / min, and the stirring temperature is controlled at 35℃ to 45℃.

4. The method for low-temperature drying and fusion treatment of high-moisture-content wet sludge according to claim 1, characterized in that, In step S3, after adding sulfuric acid, the stirring speed of the reactor is controlled at 420 r / min to 550 r / min, and the stirring temperature is controlled at 45℃ to 55℃.

5. The method for low-temperature drying and fusion treatment of high-moisture-content wet sludge according to claim 1, characterized in that, In step S3, before adding hydrogen peroxide, the stirring speed of the reactor is controlled at 30 r / min to 60 r / min, and the stirring temperature is controlled at 25℃ to 35℃.

6. The method for low-temperature drying and fusion treatment of high-moisture-content wet sludge according to claim 1, characterized in that, The bottom of the rack (34) is slidably connected to a limiting frame, the bottom of the limiting frame is bolted to the bottom of the transmission box (5), the right end of the surface of the rotating shaft (7) is rotatably sleeved with the hole of the transmission box (5), and the left end of the rotating shaft (7) is rotatably sleeved with the left side of the bottom of the square frame (1).

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