Riverway sludge harmless ecological restoration equipment

Abstract

The present application relates to the field of river sludge treatment, in particular to a river sludge harmless ecological restoration equipment. The heating kettle is arranged on the upper end of the base, the upper end of the heating kettle is fixedly connected with the kettle cover, the kettle cover is sequentially formed with the feeding port, the wet material port, the water port, the dry material port, the strain port and the air port in the circumferential direction, the lower part of the side wall of the heating kettle is formed with the discharge port; The coaxial line of the heating kettle is provided with the middle shaft, the inside of the middle shaft is formed with the air cavity, the middle shaft is formed with the air hole in the equiangular array in the circumferential direction; The lower end of the heating kettle is provided with the power mechanism for driving the middle shaft to move, the middle part of the middle shaft is fixedly connected with the cutting blade, the upper and lower sides of the cutting blade are respectively provided with the stirrer fixedly connected with the middle shaft, the stirrer includes the scraper arranged in the uniform elastic array in the circumferential direction of the middle shaft, and the side close to the middle shaft of the scraper is uniformly and elastically inclinedly provided with the multi-rib in the circumferential direction. The present application can deal with sludge with different water contents, and can treat harmful gases in the sludge, so that the strains in the sludge can fully contact with air.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of river sludge treatment, in particular to a harmless ecological restoration equipment for river sludge. BACKGROUND

[0002] In the field of river ecological management, harmless treatment of river sludge is a key link to improve water environment and restore ecological function. However, the current mainstream harmless ecological restoration equipment for river sludge has many technical defects in practical application, which is difficult to meet the efficient and high-quality restoration requirements.

[0003] Because the water content of river sludge is greatly affected by seasonal changes, river hydrological conditions and other factors, the water content of sludge under different working conditions is significantly different. However, the existing equipment lacks an effective water content adjustment mechanism. When the water content is too high, the water will directly dilute the bacteria liquid and the reaction agent added in the restoration process, resulting in insufficient concentration of bacteria and reaction agent, which greatly reduces the decomposition efficiency of organic pollutants and the ecological restoration rate. When the water content is too low, the sludge is easy to appear serious caking phenomenon, not only increases the stirring resistance of the equipment, but also hinders the penetration of bacteria liquid and reaction agent into the sludge, further affecting the restoration effect, and cannot adapt to the treatment needs of sludge with different water contents.

[0004] In addition, the volatile harmful gases (such as some volatile organic compounds, sulfides, etc.) contained in the sludge are important hidden dangers affecting the resource utilization of sludge after restoration and the surrounding air quality. However, the existing equipment can only perform simple stirring and bacteria cultivation on the sludge, and does not set a targeted volatile matter removal structure. These volatile harmful substances accumulate in the internal treatment device for a long time, not only interfere with the normal metabolic activity of bacteria, reduce the decomposition efficiency of organic matter, but also release into the air when the equipment is opened or discharged, causing secondary pollution, and cannot effectively remove the volatile harmful substances in the sludge.

[0005] Meanwhile, due to the strong viscosity of the sludge, a large amount of sludge will adhere to the inner wall and stirring part of the device during the stirring process of the traditional treatment equipment. If not cleaned in time, it will gradually accumulate and form scaling, increasing the operating load of the equipment. Moreover, due to the difference in viscosity of the sludge in different areas, the traditional stirring part cannot adapt to the difference, such as the sludge in different areas will exert different resistance on the stirring part, resulting in uneven force on the stirring part. And during the treatment process, the operator needs to pour all the sludge into the cylinder for stirring. The sludge in the upper and lower layers is insufficient in the traditional treatment equipment during the stirring process, resulting in that the upper layer of sludge is in full contact with air and has a high oxygen content, while the lower layer of sludge is in a relatively anaerobic state, and the oxygen distribution is seriously uneven. While the decomposition of bacteria on organic matter depends on sufficient and uniform oxygen supply, the difference in oxygen distribution will lead to uneven activity of bacteria in different areas, thereby delaying the sludge repair speed, and it is difficult to meet the demand of large-scale river sludge rapid treatment. Therefore, we should design a river sludge harmless ecological repair equipment to improve the above problems. SUMMARY

[0006] Therefore, it is necessary to provide a river sludge harmless ecological repair equipment aiming at the problems in the prior art.

[0007] In order to solve the problems of the difference in moisture content of sludge at different stages, the sludge cannot be treated in time, and the viscosity of the sludge is strong, and the flow exchange between the upper and lower layers is insufficient during the stirring process in the prior art, the technical scheme adopted by the present application is:

[0008] A river sludge harmless ecological repair equipment, comprising:

[0009] A heating kettle is arranged at the upper end of the base, a kettle cover is fixedly connected to the upper end of the heating kettle, an inlet, a wet material port, a water port, a dry material port, a strain port and a gas port are sequentially formed in the circumferential direction of the kettle cover, and a discharge port is formed in the lower part of the side wall of the heating kettle;

[0010] The heating kettle is coaxial with a middle shaft, a gas cavity is formed in the middle shaft, and gas holes are formed in the middle shaft at equal angles in the circumferential direction;

[0011] A power mechanism connected with the middle shaft and driving the middle shaft to move is arranged at the lower end of the heating kettle, a cutting blade is fixedly connected to the middle part of the middle shaft, and a stirrer is arranged on the upper and lower sides of the cutting blade and fixedly connected with the middle shaft, the stirrer comprises a plurality of elastic scrapers arranged uniformly in the circumferential direction of the middle shaft, and a plurality of prismatic blocks are arranged on the side of the scraper close to the middle shaft and inclined uniformly in the circumferential direction.

[0012] Further, the side of the kettle cover is provided with an air pump fixedly connected with the heating kettle, the output end of the air pump is fixedly connected with an air pipe, the output end of the air pipe is slidingly connected with an air cylinder, the lower end of the air cylinder is fixedly connected with a top disc, the lower end of the top disc is rotatably connected with an air disc, the air disc is fixedly connected with the upper end of the middle shaft and communicates with the air cavity, and each air hole is coaxially fixedly connected with a one-way air valve.

[0013] Further, the power mechanism comprises a shaft sleeve rotatably connected with the lower end of the heating kettle in a coaxial manner, the upper end of the shaft sleeve is fixedly connected with a toothed disc, the side of the toothed disc is provided with a gear rotatably connected with the base, the gear is engaged with the toothed disc, the lower end of the gear is provided with a motor, the output end of the motor is fixedly connected with the gear in a coaxial manner, and the shaft sleeve is key-connected with the middle shaft.

[0014] Further, the power mechanism further comprises a tray fixedly connected with the lower end of the middle shaft, the lower end of the tray is provided with a steel ball roller abutting against the tray, the lower end of the steel ball roller is provided with a reciprocating air cylinder, the output end of the reciprocating air cylinder is fixedly connected with a flange seat, and the flange seat is rollingly connected with the steel ball roller.

[0015] The lower side of the tray is provided with a rotating disc rotatably connected with the base, the side of the rotating disc close to the tray is provided with a reset tension spring arranged in an equiangular array in a circumferential direction, the upper end of the reset tension spring is fixedly connected with the tray, and the lower end of the reset tension spring is fixedly connected with the rotating disc.

[0016] Further, the lower part of the inside of the heating kettle is provided with a sealing cover, the sealing cover is fixedly connected with the upper end of the shaft sleeve and is dynamically sealed with the middle shaft.

[0017] Further, the lower end of the tray is fixedly connected with a limiting shaft in an equiangular array in a circumferential direction, the lower end of the limiting shaft is slidingly connected with the rotating disc, and the reset tension spring is sleeved outside the limiting shaft in a coaxial manner.

[0018] Further, the stirrer comprises a plurality of sub-rollers arranged in an equiangular array in a circumferential direction of the middle shaft, one end of each sub-roller slidingly connected with a first sleeve, the inside of the first sleeve is provided with a first spring, one end of the first spring is fixedly connected with the sub-roller, the other end of the first spring is fixedly connected with the first sleeve, and the first sleeve is fixedly connected with the scraper.

[0019] Further, the first sleeve is fixedly connected with a support roller in an equiangular array in a circumferential direction, one end of the support roller fixedly connected with a cover plate, the cover plate slidingly connected with a guide pin in a coaxial manner, one end of the guide pin fixedly connected with a snap ring close to the support roller.

[0020] One end of the guide pin fixedly connected with a second sleeve away from the snap ring, the second sleeve slidingly connected with the support roller, the second sleeve provided with a second spring close to the cover plate, one end of the second spring fixedly connected with the second sleeve, the other end of the second spring fixedly connected with the cover plate, and the second sleeve fixedly connected with a plurality of prismatic blocks.

[0021] Further, the upper and lower ends of the inside of the heating kettle are respectively fixedly connected with wear-resistant discs.

[0022] Further, the blades of the cutting blade are helical and are respectively formed with cutting edges on both sides.

[0023] The present application has the beneficial effects compared with the prior art:

[0024] Firstly, the device can accurately control the water content of sludge, effectively solving the problem that existing devices cannot adapt to sludge with different water contents. When the water content of the sludge is too high, the operator adds dry soil or straw powder through the dry material port, and uses the water absorption characteristics of the dry material to absorb excess water, avoiding dilution of the bacteria solution and the reaction agent. When the water content is too low, water is sprayed into the heating kettle through the water port to alleviate the sludge caking phenomenon and ensure the penetration effect of the bacteria solution and the reaction agent. At the same time, the flexible multi-prong block can timely stir the sludge with different viscosities, has strong self-adaptive ability, and adapts to the processing needs of sludge in different seasons and different river sections, expanding the application scenarios of the device.

[0025] Secondly, the device can remove volatile harmful substances from the sludge, making up for the defect that existing devices lack volatile substance treatment capability. During the heating process of the sludge in the heating kettle, the volatile harmful substances in the sludge can be quickly released. At the same time, the air pump sends gas to the gas cavity, and the gas enters the heating kettle through the air hole, providing the required gas environment for the reaction and pushing the volatile substances to move towards the air port. Finally, the volatile substances are discharged from the device through the air port. The one-way air valve can also prevent the sludge and water from flowing back and blocking the gas cavity, ensuring the smoothness of the volatile substance discharge channel. This structure realizes the directional collection and efficient discharge of volatile harmful substances, avoids interference with the activity of bacteria or causes secondary pollution, and improves the safety and environmental protection of the repaired sludge.

[0026] Thirdly, the device can ensure processing continuity and improve the decomposition efficiency of bacteria, solving the problem of uneven distribution of sludge adhesion and oxygen in traditional devices. In terms of preventing sludge adhesion, the scraper of the stirrer is always in close contact with the inner wall of the heating kettle through the first spring, which can remove the adhered sludge on the inner wall in real time during rotation, avoiding sludge accumulation and fouling, and ensuring processing continuity. At the same time, the middle shaft drives the cutting blades and the stirrer to cut and stir the sludge from multiple angles, improving the frequency and range of sludge turning, promoting the mixing of gas and sludge in the heating kettle, eliminating the oxygen distribution difference between the upper and lower layers of the sludge, ensuring the uniform activity of bacteria, and greatly improving the decomposition efficiency of organic matter, thereby speeding up the sludge repair speed and meeting the demand for large-scale river sludge rapid treatment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic diagram of the embodiment;

[0028] Figure 2 is a top view of the embodiment;

[0029] Figure 3 is Figure 2 is a structural plane half-section view at A-A in the middle;

[0030] Figure 4 is Figure 3 is an enlarged view of the structure at B in the middle;

[0031] Figure 5 is Figure 2 is a perspective half-section view of the structure at A-A in the middle;

[0032] Figure 6 is Figure 5 is an enlarged view of the structure at C in the middle;

[0033] Figure 7 is Figure 5 is an enlarged view of the structure at D in the middle;

[0034] Figure 8 is a perspective view of the gear and the toothed disc in the embodiment;

[0035] Figure 9 is Figure 8 is an enlarged view of the structure at E in the middle;

[0036] Figure 10 is a perspective view of the stirrer and the cutting blade in the embodiment;

[0037] Figure 11 is Figure 10 is an enlarged view of the structure at F in the middle.

[0038] Reference numerals in the drawings are:

[0039] 1, heating kettle; 2, kettle cover; 4, feed inlet; 5, wet material inlet; 6, water inlet; 7, dry material inlet; 8, strain inlet; 9, gas inlet; 10, discharge outlet; 11, air pump; 12, air pipe; 13, air cylinder; 14, top disc; 15, air disc; 16, middle shaft; 17, air cavity; 18, air hole; 19, one-way air valve; 21, tray; 22, base; 23, power mechanism; 24, motor; 25, gear; 26, toothed disc; 27, shaft sleeve; 29, sealing cover; 30, steel ball roller; 31, flange base; 32, reciprocating air cylinder; 33, limiting shaft; 34, reset tension spring; 35, rotating disc; 36, stirrer; 37, dividing roller; 38, first spring; 39, first sleeve; 40, scraper; 41, supporting roller; 42, cover plate; 43, second spring; 44, second sleeve; 45, guide pin; 46, snap ring; 47, multi-prong block; 48, cutting blade; 49, wear-resistant disc. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in conjunction with the drawings and specific embodiments.

[0041] Embodiment, please refer to Figures 1 to 11 A riverway sludge harmless ecological restoration equipment comprises:

[0042] The heating kettle 1 is arranged on the upper end of the base 22, the upper end of the heating kettle 1 is fixedly connected with a kettle cover 2, the kettle cover 2 is sequentially formed with an inlet port 4, a wet material port 5, a water port 6, a dry material port 7, a strain port 8 and a gas port 9 in the circumferential direction, and the lower part of the side wall of the heating kettle 1 is formed with a discharge port 10;

[0043] The heating kettle 1 is coaxially provided with a middle shaft 16, the middle shaft 16 is internally formed with a gas cavity 17, and the middle shaft 16 is formed with gas holes 18 at equal angles in the circumferential direction;

[0044] The lower end of the heating kettle 1 is provided with a power mechanism 23 connected with the middle shaft 16 and driving the middle shaft 16 to move, the middle part of the middle shaft 16 is fixedly connected with a cutting blade 48, and the upper and lower sides of the cutting blade 48 are respectively provided with stirrers 36 fixedly connected with the middle shaft 16, the stirrers 36 include scraper plates 40 uniformly and elastically arranged in the circumferential direction of the middle shaft 16, and the side close to the middle shaft 16 of the scraper plate 40 is uniformly and elastically inclinedly provided with a plurality of prismatic blocks 47 in the circumferential direction.

[0045] When the device operates, the operator pours the river sludge to be treated into the heating kettle 1 through the inlet port 4, and then pours the reagent into the heating kettle 1 through the wet material port 5 to decompose the organic pollutants in the river sludge. When the pollutants are decomposed, the middle shaft 16 rotates while reciprocating along the axial direction, and then stirs the river sludge through the stirrers 36. When stirring, the heating kettle 1 heats the river sludge, the external gas is injected into the heating kettle 1 through the gas holes 18 after passing through the gas cavity 17, and the volatile gas generated in the process of stirring and heating the river sludge is discharged from the heating kettle 1 through the gas port 9.

[0046] When the stirrers 36 work, the scraper plates 40 scrape the sludge on the inner wall of the heating kettle 1, the prismatic blocks 47 break the sludge, and the cutting blade 48 further cuts and refines the sludge that is turned up and down. When the decomposition of the organic pollutants is completed, the heating kettle 1 stops heating the sludge, the middle shaft 16 continues to rotate and continuously stirs the sludge, and when the sludge is cooled to an appropriate temperature, the compound strain liquid is injected into the heating kettle 1 through the strain port 8.

[0047] Meanwhile, the water content of the river sludge fluctuates greatly due to the influence of seasons and river sections, and the water content of the river sludge is different. When the water content is too high, the strain liquid and the reagent are easily diluted, resulting in insufficient strain concentration and reagent concentration, and then causing the processing efficiency to be too low. The operator can quantitatively add dry soil or straw powder to the heating kettle 1 through the dry material port 7, and when the water content is too low, in order to avoid serious sludge caking and large stirring resistance, the operator sprays water to the heating kettle 1 through the water port 6 to accurately improve the water content to the adaptive range. Finally, the repaired river sludge is discharged from the discharge port 10.

[0048] In order to avoid the water and sludge in the heating kettle 1 from flowing back to the air cavity 17 through the air holes 18, the following features are also provided:

[0049] As shown in Figure 1 , Figure 6 and Figure 11 , the kettle cover 2 is provided with an air pump 11 fixedly connected to the heating kettle 1, the output end of the air pump 11 is fixedly connected with an air pipe 12, the output end of the air pipe 12 is slidingly connected with an air cylinder 13, the lower end of the air cylinder 13 is fixedly connected with a top disc 14, the lower end of the top disc 14 is rotatably connected with an air disc 15, the air disc 15 is fixedly connected to the upper end of the middle shaft 16 and communicates with the air cavity 17, and each air hole 18 is coaxially fixedly connected with a one-way air valve 19.

[0050] After the air pump 11 is started, the air pump 11 will continuously deliver external gas to the air cavity 17 inside the middle shaft 16 through the air pipe 12, the air cylinder 13, the top disc 14 and the air disc 15 in sequence, the gas accumulates in the air cavity 17 and generates a certain pressure, and then flows to each air hole 18 along the air cavity 17 channel. Since each air hole 18 is provided with a one-way air valve 19, the one-way air valve 19 only allows the gas to flow from the air cavity 17 to the inside of the heating kettle 1 in one direction, when the gas pressure in the air cavity 17 reaches a certain value, the gas will smoothly enter the heating kettle 1 through the one-way air valve 19 and fully contact with the river sludge, providing the required gas environment for the reaction and treatment process of the sludge. When the air pump 11 stops supplying gas or pressure fluctuation occurs in the heating kettle 1, which may cause the sludge or water to have a tendency to flow back, the one-way air valve 19 automatically closes, thereby effectively blocking the water and sludge in the heating kettle 1 from entering the air cavity 17 through the air holes 18, ensuring the smoothness of the gas delivery channel and the stable operation of the equipment.

[0051] In order to realize the rotation of the middle shaft 16, the following features are also provided:

[0052] As shown in Figure 1 and Figure 8 , the power mechanism 23 includes a shaft sleeve 27 rotatably connected to the lower end of the heating kettle 1 in a coaxial line, the upper end of the shaft sleeve 27 is fixedly connected with a toothed disc 26, the toothed disc 26 is provided with a gear 25 rotatably connected to the base 22, the gear 25 is engaged with the toothed disc 26, the lower end of the gear 25 is provided with a motor 24, the output end of the motor 24 is fixedly connected with the gear 25 in a coaxial line, and the shaft sleeve 27 is key-connected with the middle shaft 16.

[0053] When the middle shaft 16 needs to be driven to rotate, the motor 24 is started and drives the gear 25 to rotate, and the gear 25 drives the shaft sleeve 27 to rotate through the toothed disc 26. The shaft sleeve 27 is connected with the middle shaft 16 by a key, the key connection can transmit torque and ensure that the shaft sleeve 27 and the middle shaft 16 do not rotate relative to each other, so the rotation of the shaft sleeve 27 will directly drive the middle shaft 16 to rotate together, providing rotary power for the work of the cutting blade 48 and the stirrer 36 on the middle shaft 16, so that the cutting blade 48 can cut and refine the sludge, and the stirrer 36 can stir and mix the sludge, promoting the sludge to fully contact and react with the reaction agent, the bacterial liquid and other substances.

[0054] In order to realize the reciprocating movement of the middle shaft 16 along the axis direction thereof, the following features are further provided:

[0055] As shown in Figure 1 , Figure 8 and Figure 9 , the power mechanism 23 further comprises a tray 21 fixedly connected with the lower end of the middle shaft 16, the lower end of the tray 21 is provided with a steel ball roller 30 abutting against the tray 21, the lower end of the steel ball roller 30 is provided with a reciprocating air cylinder 32, the output end of the reciprocating air cylinder 32 is fixedly connected with a flange seat 31, and the flange seat 31 is in rolling connection with the steel ball roller 30.

[0056] The lower side of the tray 21 is provided with a rotating disc 35 in rotating connection with the base 22, and the side of the rotating disc 35 close to the tray 21 is provided with a plurality of reset tension springs 34 arranged at equal angles along the circumferential direction, the upper end of each reset tension spring 34 is fixedly connected with the tray 21, and the lower end thereof is fixedly connected with the rotating disc 35.

[0057] When the reciprocating air cylinder 32 is started, the output end of the reciprocating air cylinder 32 will drive the steel ball roller 30 to move up and down through the flange seat 31, and the steel ball roller 30 will generate an upward thrust on the tray 21 in the process of moving upward, and at this time the reset tension spring 34 is stretched, and when the steel ball roller 30 moves downward, the reset tension spring 34 restores the deformation and drives the tray 21 to move downward, thereby realizing the reciprocating displacement of the tray 21.

[0058] At the same time, because the middle shaft 16 and the shaft sleeve 27 are connected by a key, the shaft sleeve 27 only limits the axial rotation of the middle shaft 16, but does not limit the movement of the middle shaft 16 along the axis direction, so under the driving of the tray 21, the middle shaft 16 can move up and down with the steel ball roller 30 and move synchronously along the axis direction thereof. Moreover, the steel ball roller 30 and the tray 21 are in rolling contact, which can effectively reduce the friction therebetween, reduce the operating load of the reciprocating air cylinder 32, make the reciprocating movement of the middle shaft 16 more smooth and stable, avoid the movement of the middle shaft 16 from being stuck or the components from being worn due to excessive friction, and protect the normal operation and service life of the equipment.

[0059] In order to limit the reciprocating movement of the middle shaft 16, the following features are further provided:

[0060] As shown in Figure 4 , the lower part of the inside of the heating kettle 1 is provided with a sealing cover 29, which is fixed to the upper end of the shaft sleeve 27 and is in dynamic sealing connection with the middle shaft 16. The sealing cover 29 is in dynamic sealing connection with the middle shaft 16. This dynamic sealing structure can effectively prevent the sludge and moisture in the heating kettle 1 from leaking out of the gap between the shaft sleeve 27 and the middle shaft 16 to the outside of the equipment without affecting the reciprocating movement of the middle shaft 16, thereby avoiding pollution to the environment around the equipment.

[0061] In order to limit the reciprocating movement of the tray 21, the following features are also provided:

[0062] As shown in Figure 8 and Figure 9 , the lower end of the tray 21 is fixed to the limit shaft 33 at equal angles in the circumferential direction, the lower end of the limit shaft 33 is in sliding connection with the rotating disc 35, and the reset tension spring 34 is coaxially sleeved outside the limit shaft 33.

[0063] When the tray 21 moves up and down with the middle shaft 16, the limit shaft 33 fixed to the lower end of the tray 21 will slide synchronously along the sliding track on the rotating disc 35. The sliding connection structure of the limit shaft 33 and the rotating disc 35 can guide and limit the movement of the tray 21, prevent the reset tension spring 34 from being twisted and deformed due to the rotation of the tray 21, and effectively ensure the stability of the device operation.

[0064] In order to realize the elastic abutment of the scraper 40 and the side wall of the heating kettle 1, the following features are also provided:

[0065] As shown in Figure 5 , Figure 7 and Figure 11 , the stirrer 36 includes a plurality of sub-rollers 37 arranged at equal angles in the circumferential direction of the middle shaft 16, the first sleeve 39 is slidably connected to one end of the sub-roller 37 away from the middle shaft 16, the first spring 38 is arranged inside the first sleeve 39, one end of the first spring 38 is fixed to the sub-roller 37, the other end is fixed to the first sleeve 39, and the first sleeve 39 is fixed to the scraper 40.

[0066] When the stirrer 36 rotates with the middle shaft 16 to stir the sludge in the heating kettle 1, the scraper 40 will be in contact with the inner wall of the heating kettle 1. When the scraper 40 encounters thicker sludge or slight protrusions on the inner wall of the heating kettle 1 during rotation, the first spring 38 ensures that the scraper 40 always maintains close contact with the inner wall of the heating kettle 1, ensuring that the scraper 40 can effectively remove the sludge attached to the inner wall of the heating kettle 1, avoiding the accumulation of sludge on the inner wall of the heating kettle 1, affecting the heating efficiency of the heating kettle 1 and the normal operation of the equipment.

[0067] To make a detailed supplement to the specific connection structure of the multi-prism block 47, the following features are also provided:

[0068] As shown in Figure 7 and Figure 10 , the first sleeve 39 is fixedly connected with a supporting roller 41 at equal angles in the circumferential direction, the end of the supporting roller 41 away from the splitter roller 37 is fixedly connected with a cover plate 42, the cover plate 42 is coaxially slidingly connected with a guide pin 45, the end of the guide pin 45 close to the supporting roller 41 is fixedly connected with a snap ring 46;

[0069] The end of the guide pin 45 away from the snap ring 46 is fixedly connected with a second sleeve 44, the second sleeve 44 is slidingly connected with the supporting roller 41, the end of the second sleeve 44 close to the cover plate 42 is provided with a second spring 43, one end of the second spring 43 is fixedly connected with the second sleeve 44, and the other end is fixedly connected with the cover plate 42, and the second sleeve 44 is fixedly connected with the multi-prism block 47.

[0070] During the rotation of the stirrer 36, the multi-prism block 47 will rotate with the stirrer 36 to break up the large sludge in the heating kettle 1. Because the multi-prism block 47 is limited by the second spring 43, when the sludge has too high viscosity, the sludge will exert a viscous resistance vibration on the stirring part during stirring. At this time, the second spring 43 absorbs part of the vibration through its elastic deformation, maintains the stability of the device operation, and at the same time, because the viscosity of the sludge in different regions is different, the multi-prism block 47 will contact the sludge in different regions during the rotation and reciprocating movement of the central shaft 16. At this time, the second spring 43 can ensure that the multi-prism block 47 is self-adaptively adjusted, and when the central shaft 16 moves the multi-prism block 47 from sludge with different viscosities, the second spring 43 can cause the multi-prism block 47 to vibrate. Not only can it break the sludge lumps that are about to form, but also can avoid the long-term adhesion of the sludge to the surface of the multi-prism block 47.

[0071] In addition, because the sludge itself has plasticity, and the second spring 43 causes the multi-prism block 47 to have non-rigid contact with the sludge, it can avoid local compaction of the sludge due to rigid extrusion, thereby increasing the penetration efficiency of the medicament and the bacteria. The elastically arranged multi-prism block 47 can assist the sludge to form a flowing state, thereby improving the repair effect.

[0072] At the same time, the sliding connection of the guide pin 45 and the cover plate 42 and the setting of the snap ring 46 can guide and limit the sliding direction of the second sleeve 44, preventing the second sleeve 44 from deviating and separating from the guide pin 45 during sliding.

[0073] In order to avoid scratching the inner wall of the heating kettle 1 during the movement of the multi-prism block 47, the following features are also provided:

[0074] The upper and lower ends inside the heating kettle 1 are respectively fixedly connected with wear-resistant discs 49.

[0075] During the operation of the device, when the multi-prism 47 rotates with the stirrer 36 to break the sludge, due to the weight and rotation speed of the multi-prism 47, the multi-prism 47 may contact or collide with the upper and lower ends inside the heating kettle 1 during movement due to uneven distribution of sludge or equipment vibration. The wear-resistant disc 49 fixed at the upper and lower ends inside the heating kettle 1 is made of high-strength and high-wear-resistant material, which can effectively withstand the impact and friction of the multi-prism 47, prolong the service life of the heating kettle 1, and reduce the maintenance cost of the equipment.

[0076] In order to supplement the specific structure of the cutting blade 48, the following features are also provided:

[0077] As shown in Figure 10 , the blade of the cutting blade 48 is spiral-shaped and has a cutting edge formed on both sides.

[0078] When the cutting blade 48 is rotated by the central shaft 16, the spiral-shaped blade can increase the stirring frequency and range of the sludge, so that the sludge can be more fully contacted with the heat, gas and reaction agent in the heating kettle 1. At the same time, the cutting edges formed on both sides of the blade can quickly and effectively cut the sludge passing through the blade. Whether it is a larger sludge aggregate or a sludge particle after preliminary crushing, the cutting edge can further cut and refine it, making the sludge particles more uniform and smaller. This creates good conditions for subsequent reaction agent decomposition of organic pollutants and bacteria liquid for ecological restoration, improving the treatment quality and efficiency of river sludge.

[0079] The detailed working principle of the device is: when the device is used for harmless ecological restoration treatment of river sludge, the operator first pours the river sludge to be treated into the heating kettle 1 through the inlet 4 on the upper kettle cover 2 of the heating kettle 1. After the sludge is fed, the reaction agent is injected into the heating kettle 1 through the wet material port 5. After the reaction agent enters the heating kettle 1, it initially contacts with the river sludge and begins to decompose the organic pollutants in the sludge.

[0080] In the process of the reaction agent decomposing the organic pollutants, the motor 24 is started and drives the gear 25 to rotate, the gear 25 is engaged with the toothed disc 26 at the lower end of the shaft sleeve 27, and then drives the shaft sleeve 27 to rotate, the shaft sleeve 27 drives the central shaft 16 to rotate synchronously through the key connection. When the central shaft 16 rotates, the cutting blade 48 fixed in the middle and the agitator 36 on both sides of the cutting blade 48 also rotate. The spiral blade of the cutting blade 48 cooperates with the two side edges to cut and refine the sludge that is turned up and down, and to destroy the sludge aggregates; when the agitator 36 rotates, the first sleeve pipe 39 and the scraper 40 are driven to rotate by the roller 37, the scraper 40 is in close contact with the inner wall of the heating kettle 1 at all times under the action of the first spring 38, and the sludge attached to the inner wall is scraped off, and the second sleeve pipe 44 and the multi-prong block 47 are driven to rotate by the branch roller 41 on the roller 37, and the multi-prong block 47 breaks the large sludge under the action of the second spring 43, further improving the sludge refinement degree.

[0081] When the motor 24 is started, the reciprocating air cylinder 32 is started and drives the steel ball roller 30 to move up and down through the flange seat 31, the steel ball roller 30 pushes the tray 21 and the central shaft 16 to move upward. The reset tension spring 34 pulls the tray 21 and the central shaft 16 to move downward to reset, ensuring that the central shaft 16 moves stably. The combination of rotation and reciprocating movement of the central shaft 16 enables the cutting blade 48 and the agitator 36 to cut and stir the sludge from different angles and positions, greatly improving the uniformity of the sludge and the reaction agent, and accelerating the decomposition of the organic pollutants.

[0082] After the reaction agent is injected into the heating kettle 1, the heating kettle 1 continues to heat the sludge inside, provides a suitable temperature environment for the reaction agent to decompose the organic pollutants, and promotes the reaction rate to improve. At the same time, the air pump 11 sends gas to the air cavity 17 inside the central shaft 16, and after the gas accumulates in the air cavity 17, the one-way air valve 19 at the air hole 18 opens to enter the heating kettle 1 and fully contacts with the sludge, promoting the release of volatile substances in the sludge. The volatile gas generated during the sludge stirring and heating process is discharged from the heating kettle 1 through the gas port 9 on the kettle cover 2, to avoid the accumulation of gas in the heating kettle 1 affecting the treatment process or causing safety hazards. In the above process, the sliding connection of the air pipe 12 and the air pipe 12 corresponds to the reciprocating movement of the central shaft 16, and the rotary connection of the top disc 14 and the air disc 15 corresponds to the continuous rotation of the central shaft 16, to ensure that the air pump 11 can still continuously send air to the air cavity 17 during the movement of the central shaft 16.

[0083] When the decomposition of organic pollutants is completed, the heating kettle 1 stops heating, the central shaft 16 continues to rotate and reciprocate to drive the cutting blades 48 and the stirrer 36 to continuously stir the sludge, so that the temperature of the sludge uniformly decreases. After the sludge is cooled to a suitable temperature for the growth and reproduction of bacteria, the composite bacterial liquid is injected into the heating kettle 1 through the bacterial port 8, and the composite bacterial liquid and the refined sludge are fully mixed under the stirring action, and the ecological restoration of the sludge is started, the residual pollutants are degraded, and the properties of the sludge are improved.

[0084] Considering that the water content of the river sludge fluctuates greatly due to seasons and river sections, if the water content is too high, the bacterial liquid and the reaction agent will be diluted, resulting in insufficient concentration of the bacteria and the reaction agent, and reducing the processing efficiency. At this time, the operator can quantitatively add dry soil or straw powder to the heating kettle 1 through the dry material port 7 to absorb the excess water in the sludge and adjust the water content; if the water content is too low, the sludge is easy to be caked, the stirring resistance is increased, and the bacterial liquid and the reaction agent are difficult to penetrate, and the operator sprays clean water into the heating kettle 1 through the water port 6 to accurately increase the water content to the adaptive range, so that the bacterial liquid and the reaction agent can fully play a role and ensure the ecological restoration effect.

[0085] Finally, the river sludge treated by harmless ecological restoration is discharged through the discharge port 10 at the lower part of the side wall of the heating kettle 1, and the whole restoration treatment process is completed.

[0086] The above examples only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A river channel sludge harmless ecological restoration equipment, characterized in that, The utility model relates to a kind of fermentation tank and power mechanism, including: Heating kettle (1) is arranged on the upper end of base (22), the upper end of heating kettle (1) is fixedly connected with kettle cover (2), kettle cover (2) is successively profiled with feed inlet (4), wet material port (5), water port (6), dry material port (7), strain port (8) and gas port (9) in circumferential direction, the lower part of the side wall of heating kettle (1) is profiled with discharge port (10); Heating kettle (1) is coaxially provided with middle shaft (16), the inside of middle shaft (16) is profiled with air cavity (17), middle shaft (16) is profiled with air hole (18) in equiangular array in circumferential direction; The lower end of heating kettle (1) is provided with power mechanism (23) connected with middle shaft (16) and driving middle shaft (16) to move, the middle part of middle shaft (16) is fixedly connected with cutting blade (48), the upper and lower sides of cutting blade (48) are respectively provided with stirrer (36) fixedly connected with middle shaft (16), and stirrer (36) includes scraper (40) arranged in equiangular array in circumferential direction of middle shaft (16), the side close to middle shaft (16) of scraper (40) is uniformly and elastically inclined in circumferential direction and is provided with multi-rib (47); Stirrer (36) includes sub-roller (37) arranged in equiangular array in circumferential direction of middle shaft (16), one end of sub-roller (37) away from middle shaft (16) is slidably connected with first sleeve (39), first sleeve (39) is provided with first spring (38) in the inside, one end of first spring (38) is fixedly connected with sub-roller (37), the other end is fixedly connected with first sleeve (39), and first sleeve (39) is fixedly connected with scraper (40); First sleeve (39) is fixedly connected with support roller (41) in equiangular array in circumferential direction, one end of support roller (41) away from sub-roller (37) is fixedly connected with cover plate (42), cover plate (42) is slidably connected with guide pin (45) in coaxial line, one end of guide pin (45) close to support roller (41) is fixedly connected with snap ring (46); One end of guide pin (45) away from snap ring (46) is fixedly connected with second sleeve (44), second sleeve (44) is slidably connected with support roller (41), and second sleeve (44) is provided with second spring (43) in the end close to cover plate (42), one end of second spring (43) is fixedly connected with second sleeve (44), the other end is fixedly connected with cover plate (42), and second sleeve (44) is fixedly connected with multi-rib (47).

2. The river sludge harmless ecological restoration equipment according to claim 1, characterized in that, The side of kettle cover (2) is provided with gas pump (11) fixedly connected with heating kettle (1), the output end of gas pump (11) is fixedly connected with air pipe (12), the output end of air pipe (12) is slidably connected with air cylinder (13), the lower end of air cylinder (13) is fixedly connected with top disc (14), top disc (14) is rotatably connected with air disc (15) in the lower end, air disc (15) is fixedly connected with the upper end of middle shaft (16) and is communicated with air cavity (17), and each air hole (18) is fixedly connected with one-way air valve (19) in coaxial line.

3. The river sludge harmless ecological restoration equipment according to claim 1, characterized in that, The power mechanism (23) comprises a shaft sleeve (27) coaxially connected with the lower end of the heating kettle (1), a gear disc (26) fixedly connected with the upper end of the shaft sleeve (27), a gear (25) rotatably connected with the base (22) and arranged beside the gear disc (26), the gear (25) engaged with the gear disc (26), a motor (24) provided at the lower end of the gear (25), the output end of the motor (24) coaxially fixedly connected with the gear (25), and the shaft sleeve (27) key-connected with the middle shaft (16).

4. The river sludge harmless ecological restoration equipment according to claim 3, characterized in that, The power mechanism (23) further comprises a tray (21) fixedly connected with the lower end of the middle shaft (16), a steel ball roller (30) provided at the lower end of the tray (21) and abutting against the tray (21), a reciprocating air cylinder (32) provided at the lower end of the steel ball roller (30), a flange seat (31) fixedly connected with the output end of the reciprocating air cylinder (32), and the flange seat (31) rollingly connected with the steel ball roller (30). A rotating disc (35) rotatably connected with the base (22) is arranged below the tray (21), a plurality of reset tension springs (34) are arranged at equal angles in the circumferential direction on the side of the rotating disc (35) close to the tray (21), the upper end of each reset tension spring (34) is fixedly connected with the tray (21), and the lower end of each reset tension spring (34) is fixedly connected with the rotating disc (35).

5. The equipment according to claim 3, wherein A sealing cover (29) is arranged at the lower part of the inside of the heating kettle (1), the sealing cover (29) is fixedly connected with the upper end of the shaft sleeve (27) and is dynamically sealed with the middle shaft (16).

6. The river sludge harmless ecological restoration equipment according to claim 4, characterized in that, The lower end of the tray (21) is fixedly connected with a limiting shaft (33) at equal angles in the circumferential direction, the lower end of the limiting shaft (33) is slidingly connected with the rotating disc (35), and the reset tension spring (34) is coaxially sleeved outside the limiting shaft (33).

7. The river sludge harmless ecological restoration equipment according to claim 1, characterized in that, The upper and lower ends of the inside of the heating kettle (1) are respectively fixedly connected with wear-resistant discs (49).

8. The river sludge harmless ecological restoration equipment according to claim 1, characterized in that, The blades of the cutting blade (48) are helical and are respectively formed with cutting edges at two sides.

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