Sludge digestion denitrification and sludge stabilization device for sewage plant

Abstract

The invention discloses a sludge digestion denitrification and sludge stabilization device for a sewage plant, relates to the technical field of sludge digestion treatment, and solves the technical problems that sludge is easy to accumulate, a nitrifying bacteria solution can only act on the upper surface of the sludge, and the covered sludge is not easy to fully react with the nitrifying bacteria solution. Comprising a sludge treatment box body, and a sludge denitrification chamber is formed in the sludge treatment box body; the turnover denitrification mechanism is mounted at the top of the sludge treatment box body and is used for performing turnover denitrification treatment on the sludge in the sludge denitrification chamber; sludge in the sludge denitrification chamber can be fully overturned left and right and front and back, a spraying component is matched to spray a solution to the overturned sludge for denitrification treatment, sludge overturning and solution spraying are synchronously treated, the situation that the overturned sludge flows again and covers the sludge is avoided, it is guaranteed that each part of sludge can make contact with the solution, and the sludge denitrification efficiency is improved. The sludge digestion and denitrification effects are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge digestion and denitrification, and specifically relates to a sewage treatment plant sludge digestion and denitrification and sludge stabilization device. Background Technique

[0002] Sludge digestion and denitrification is the core link of sludge treatment in sewage treatment plants, aiming to reduce the nitrogen content in sludge through biological, chemical or thermodynamic means, while achieving sludge reduction, stabilization and resource utilization. Therefore, corresponding sludge stable digestion and denitrification treatment devices will be used.

[0003] For example, a sewage treatment plant sludge digestion and denitrification and sludge stabilization device with the publication number of CN111807658B includes a first partition plate (1) and a second partition plate (2) arranged successively from top to bottom. On the first partition plate (1), a storage tank (3), a water suction pipe lowering device (4) and a wastewater denitrification device (5) are arranged successively from left to right. A sludge denitrification device (6) is arranged on the second partition plate (2). The storage tank (3) penetrates through the first partition plate (1), the top of the storage tank (3) is provided with an opening, and a vibration motor (7) is arranged on the side wall of the storage tank (3). The water suction pipe lowering device (4) includes an oil cylinder (10), a water suction pipe (11) and a hose (12), and the oil cylinder (10) is vertically arranged and fixedly installed on the first partition plate (1).

[0004] In the above patent, a nitrifying bacteria solution is sprayed on the sludge on the inclined plate. The continuous feeding of the sludge makes the inclined plate always in a falling state and not easy to vibrate, so that the sludge is prone to accumulate. The nitrifying bacteria solution can only act on the upper surface of the sludge, and the covered sludge is not easy to react fully with the digestion bacteria solution. Moreover, when spraying the nitrifying bacteria solution, the bacterial cells may settle and aggregate, resulting in uneven spraying of the bacterial cells and affecting the denitrification effect on the sludge. Summary of the Invention

[0005] The invention aims to at least solve one of the technical problems existing in the prior art; for this reason, the invention proposes a sewage treatment plant sludge digestion and denitrification and sludge stabilization device.

[0006] A sewage treatment plant sludge digestion and denitrification and sludge stabilization device includes:

[0007] A sludge treatment box body, and a sludge denitrification chamber is opened inside the sludge treatment box body;

[0008] A turnover denitrification mechanism installed on the top of the sludge treatment box body and used for turning over and denitrifying the sludge inside the sludge denitrification chamber. The turnover denitrification mechanism includes a lateral movement member installed on the inner wall of the sludge treatment box body, a spraying member driven by the lateral movement member to move horizontally and spray a solution, and a turnover member extending to the bottom of the sludge denitrification chamber to turn over the sludge;

[0009] The transverse movement member includes a driving lead screw horizontally installed on the inner wall of the sludge treatment tank. A nut seat is sleeved on the driving lead screw. A connecting rod is arranged between two relatively distributed nut seats. The flipping member is connected to the connecting rod, and the spraying member is installed on the upper surface of the nut seat.

[0010] Preferably, the transverse movement member for driving the spraying member to move horizontally further includes:

[0011] A rectangular frame horizontally fixed on the inner wall of the sludge treatment tank. The nut seat is located in the rectangular frame, and the two are in sliding fit.

[0012] A driving motor installed on the outer side wall of the sludge treatment tank. The driving lead screw rotates in the rectangular frame, and the driving motor is connected to one end of the driving lead screw.

[0013] Preferably, the flipping member for flipping the sludge includes:

[0014] A mounting plate longitudinally located at the bottom of the sludge denitrification chamber. A plurality of bidirectional pawls are arranged on the lower surface of the mounting plate.

[0015] A connecting plate for connecting and fixing a plurality of mounting plates;

[0016] And a fixing plate vertically fixed on the upper surface of the connecting plate. The fixing plate is movably connected to the connecting rod.

[0017] Preferably, a longitudinal movement member for driving the flipping member to move back and forth is arranged between the fixing plate and the connecting rod. The longitudinal movement member includes:

[0018] A fixed rack fixed on the inner surface of the lower end of the rectangular frame. A linear gear meshing with the fixed rack is sleeved on the connecting rod;

[0019] A cylindrical cam sleeved at the middle position of the connecting rod. A cam groove is formed on the surface of the cylindrical cam, and a limiting slider is arranged in the cam groove;

[0020] A T-shaped rod connected to the limiting slider. The upper end of the fixing plate is fixedly sleeved on the transverse end of the T-shaped rod.

[0021] Preferably, the longitudinal movement member further includes a limiting frame fixed on the left side of the nut seat. The two relatively distributed limiting frames are respectively movably connected to the longitudinal ends of the T-shaped rod.

[0022] Preferably, the spraying member for spraying the solution onto the sludge at the bottom of the sludge denitrification chamber includes:

[0023] A spraying tank installed on the upper surface of the nut seat. A piston plate is arranged inside the spraying tank;

[0024] A moving rack vertically located outside the spur gear, with the other end of the moving rack passing through the top of the spraying tank and connecting to the upper surface of the piston plate;

[0025] A distribution pipe is arranged between the sides of the two spraying tanks, and a plurality of spray heads are arranged on the lower surface of the distribution pipe.

[0026] Preferably, the spraying member further includes a medicine storage cylinder fixed on the outer surface of the sludge treatment box body, and a material extraction pipe is arranged between the top of the medicine storage cylinder and the rear surface of the spraying tank.

[0027] Preferably, a plurality of anti-settlement members are arranged between the lower surface of the piston plate and the bottom of the spraying tank. The anti-settlement members perform anti-settlement treatment on the solution in the spraying tank. The anti-settlement members include:

[0028] An outer pipe fixed on the lower surface of the piston plate, and a chassis is arranged below the outer pipe at the bottom of the spraying tank;

[0029] An inner twist rod fixed on the upper surface of the chassis and extending into the inner part of the outer pipe;

[0030] A plurality of mixing rods installed on the circumferential surface of the chassis, and a plurality of ball head columns for supporting the chassis are arranged at the bottom of the spraying tank.

[0031] Preferably, an annular groove is formed on the lower surface of the chassis and is slidably matched with the upper end of the ball head column. A cylindrical cavity is left at the upper end of the outer pipe, and a movable plate is arranged at the bottom of the cylindrical cavity. An elastic member is arranged between the upper surface of the movable plate and the top of the cylindrical cavity.

[0032] Preferably, a partition is arranged inside the sludge treatment box body, and the partition divides the inside of the sludge treatment box body into a sludge denitrification chamber and a sewage treatment chamber. Sewage pipes are arranged inside both the sludge denitrification chamber and the sewage treatment chamber.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] (1) The present invention can fully turn the sludge in the sludge denitrification chamber left and right, front and back, and cooperate with the spraying member to spray the solution for denitrification treatment on the turned sludge. The turning of the sludge and the spraying of the solution are processed synchronously, and the situation that the turned sludge flows and covers again will not occur, ensuring that every part of the sludge can contact the solution and improving the denitrification effect of sludge digestion.

[0035] (2) The present invention utilizes the longitudinal moving member to move left and right of the turning member and, at the same time, cooperate with the connecting rod to realize the front and back movement of the turning member, so as to solve the problem of the distance between adjacent bidirectional pawls while turning the sludge, thereby fully turning the sludge and making it contact with the sprayed solution, and the situation of stacking dead angles will not occur, improving the denitrification effect of sludge digestion.

[0036] (3) By using the anti-dropping component, during the process of spraying the solution, the solution in the spraying tank can be mixed to prevent the aggregation of bacteria colonies, ensuring the uniformity of the solution, facilitating the contact between the sprayed solution and the sludge, and fully carrying out denitrification treatment on the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of the sludge stable digestion and denitrification device of the present invention;

[0038] Figure 2 It is a schematic internal structure diagram of the sludge stable digestion and denitrification device of the present invention;

[0039] Figure 3 For the present invention Figure 2 It is a schematic structural diagram of the flipping denitrification mechanism in the present invention;

[0040] Figure 4 For the present invention Figure 3 It is a schematic structural diagram of the transverse moving component in the present invention;

[0041] Figure 5 For the present invention Figure 4 It is an enlarged view of area A in the present invention;

[0042] Figure 6 For the present invention Figure 4 It is an enlarged view of area B in the present invention;

[0043] Figure 7 For the present invention Figure 3 It is a schematic structural diagram of the spraying component in the present invention;

[0044] Figure 8 For the present invention Figure 7 It is a cross-sectional view of the anti-dropping component in the present invention;

[0045] In the figure: 100, sludge treatment box body; 101, sludge denitrification chamber; 102, sewage treatment chamber; 103, sewage pipe; 104, support frame; 200, flipping denitrification mechanism; 201, flipping member; 2011, mounting plate; 2012, bidirectional pawl; 2013, connecting plate; 2014, fixing plate; 202, transverse moving member; 2021, driving motor; 2022, rectangular frame; 2023, driving lead screw; 2024, nut seat; 203, spraying member; 2031, spraying tank; 2032, medicine storage cylinder; 2033, material extraction pipe; 2034, piston plate; 2035, moving rack; 2036, limiting base; 2037, distribution pipe; 2038, spraying head; 204, longitudinal moving member; 2041, fixed rack; 2042, linear gear; 2043, limiting frame; 2044, cylindrical cam; 2045, cam groove; 2046, T-shaped rod; 2047, limiting slider; 205, connecting rod; 300, anti-drop member; 301, outer pipe; 302, inner twist rod; 303, chassis; 304, ball head column; 305, mixing rod; 306, annular groove; 307, movable plate; 308, elastic member. Specific embodiments

[0046] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Embodiment 1

[0048] Please refer to Figure 1 - Figure 4 and Figure 7 This application provides a sewage plant sludge digestion denitrification and sludge stabilization device, including:

[0049] A sludge treatment box body 100, with a sludge denitrification chamber 101 opened inside the sludge treatment box body 100, where sewage precipitates in the sludge denitrification chamber 101;

[0050] A turnover denitrification mechanism 200 installed on the top of the sludge treatment box body 100 and used for turning over and denitrifying the sludge inside the sludge denitrification chamber 101. By setting the turnover denitrification mechanism 200, the sludge in the sludge denitrification chamber 101 can be fully turned over left, right, front and back, and the turned-over sludge is sprayed with a solution for denitrification treatment in cooperation with the spraying component 203. The turnover of the sludge and the spraying of the solution are processed synchronously, and the situation that the turned-over sludge flows and covers again will not occur, ensuring that every part of the sludge can contact the solution and improving the effect of sludge digestion and denitrification. The turnover denitrification mechanism 200 includes a lateral movement component 202 installed on the inner wall of the sludge treatment box body 100, a spraying component 203 driven by the lateral movement component 202 to laterally move and spray the solution, and a turnover component 201 extending to the bottom of the sludge denitrification chamber 101 to turn over the sludge;

[0051] The lateral movement component 202 includes a driving lead screw 2023 horizontally installed on the inner wall of the sludge treatment box body 100. A nut seat 2024 is sleeved on the driving lead screw 2023, which facilitates the movement of the nut seat 2024 as the driving lead screw 2023 rotates. And the number of nut seats 2024 is two, and its specific number can be set according to the size of the sludge denitrification chamber 101. The set number is even, which is convenient for fully turning over the sludge in the sludge denitrification chamber 101. And the size of the moving rack 2035 is set according to the distance of the left and right movement of the nut seat 2024. A connecting rod 205 is arranged between two relatively distributed nut seats 2024. The connecting rod 205 is rotatably connected to the nut seat 2024. The turnover component 201 is connected to the connecting rod 205. The spraying component 203 is installed on the upper surface of the nut seat 2024, and the two move synchronously.

[0052] In this embodiment, preferably, the lateral movement component 202 for driving the lateral movement of the spraying component 203 further includes:

[0053] A rectangular frame 2022 horizontally fixed on the inner wall of the sludge treatment box body 100. The nut seat 2024 is located in the rectangular frame 2022, and the two are slidably matched. The upper and lower surfaces of the nut seat 2024 are attached to the inner surface of the rectangular frame 2022, so that the nut seat 2024 will not rotate;

[0054] A driving motor 2021 installed on the outer side wall of the sludge treatment box body 100. The driving lead screw 2023 rotates in the rectangular frame 2022, and a bearing is embedded between the two, so that the driving lead screw 2023 rotates in place. And the driving motor 2021 is connected to one end of the driving lead screw 2023 to drive the driving lead screw 2023 to rotate.

[0055] In this embodiment, preferably, the turnover component 201 for turning over the sludge includes:

[0056] The mounting plate 2011 longitudinally located at the bottom of the sludge denitrification chamber 101. The number of the mounting plates 2011 can be set to multiple. A plurality of bidirectional pawls 2012 are arranged on the lower surface of the mounting plate 2011. The bidirectional pawls 2012 are Y-shaped, which is convenient for turning the sludge when moving left and right, and the shape can be set according to needs.

[0057] The connecting plate 2013 that connects and fixes the multiple mounting plates 2011, which is convenient for the multiple mounting plates 2011 to move simultaneously.

[0058] And the fixing plate 2014 vertically fixed on the upper surface of the connecting plate 2013. The fixing plate 2014 is movably connected with the connecting rod 205, which is convenient for the fixing plate 2014 to move along with the connecting rod 205 to fully turn the sludge.

[0059] In this embodiment, preferably, the spraying member 203 for spraying the solution onto the sludge at the bottom of the sludge denitrification chamber 101 includes:

[0060] The spraying tank 2031 installed on the upper surface of the nut seat 2024. A limiting base 2036 is arranged between the two. And a rectangular sliding hole for the limiting base 2036 to slide is opened at the upper end of the rectangular frame 2022 to further limit and guide the nut seat 2024. A piston plate 2034 is arranged inside the spraying tank 2031. The piston plate 2034 fits the inner wall of the spraying tank 2031. And the solution in the spraying tank 2031 can be the medicine for sludge denitrification treatment, including but not limited to nitrifying bacteria solution.

[0061] The moving rack 2035 vertically located outside the straight gear 2042. The moving rack 2035 is also located outside the fixed rack 2041, and there is no conflict in their use. The other end of the moving rack 2035 penetrates through the top of the spraying tank 2031 and is connected to the upper surface of the piston plate 2034. The side view of the moving rack 2035 can be U-shaped. Teeth meshing with the straight gear 2042 are arranged on the inner side of its front end, while there are no teeth on the rear end surface, which is convenient for penetrating through the top of the spraying tank 2031 and connecting with the piston plate 2034. And the spraying tank 2031 and the rear end of the moving rack 2035 cooperate to play a guiding role.

[0062] A distribution pipe 2037 is arranged between the sides of the two spraying tanks 2031. The distribution pipe 2037 is longitudinally distributed. The number of the distribution pipes 2037 can be set according to needs, and the distribution angle of the spraying heads 2038 on it can also be set. A plurality of spraying heads 2038 are arranged on the lower surface of the distribution pipe 2037. The arrangement of the plurality of spraying heads 2038 expands the contact area with the sludge.

[0063] In this embodiment, preferably, the spraying member 203 further includes a medicine storage cylinder 2032 fixed on the outer surface of the sludge treatment box body 100. A clamp is provided between the medicine storage cylinder 2032 and the sludge treatment box body 100 to support and fix the medicine storage cylinder 2032. The medicine storage cylinder 203 is internally stored with a solution for replenishing the spraying box 2031. A pumping pipe 2033 is provided between the top of the medicine storage cylinder 2032 and the rear surface of the spraying box 2031. The pumping pipe 2033 is a flexible pipe, which does not affect the movement of the spraying box 2031. One-way valves are provided on both the pumping pipe 2033 and the distribution pipe 2037 to facilitate the suction or discharge of the solution.

[0064] In summary, during use, the spraying tank 2031 is filled with a solution for sludge denitrification. The two driving motors 2021 work simultaneously to drive the driving lead screw 2023 to rotate, driving the nut seat 2024 thereon to move. The movement of the nut seat 2024 drives the spraying tank 2031 and the connecting rod 205 thereon to move to the right. The rightward movement of the nut seat 2024 drives the limit frame 2043 and the fixing plate 2014 to move to the right, thereby driving a plurality of two-way pawls 2012 to move to the right to turn over the sludge. At the same time, as the connecting rod 205 moves to the right, the linear gear 2042 thereon meshes with the fixed rack 2041. The rotation of the linear gear 2042 drives the connecting rod 205 and the cylindrical cam 2044 thereon to rotate, driving the limit slider 2047 to slide in the cam groove 2045, driving the T-shaped rod 2046 to move back and forth, thereby driving the fixing plate 2014 and the two-way pawl 2012 to move back and forth, solving the problem of the distance between the two-way pawls 2012 and facilitating the full turning over of the sludge. While turning over the sludge, as the linear gear 2042 rotates, it drives the moving rack 2035 on the left side that meshes with it to move downward, while the moving rack 2035 on the right side meshes with the linear gear 2042 on the right side, and the moving rack 2035 on the right side moves upward. The distribution positions of the moving racks 2035 on the left and right sides and the linear gear 2042 can be set as needed. When the moving rack 2035 on the left side moves downward, it drives the piston plate 2034 to move downward, squeezing the solution downward into the distribution pipe 2037 and spraying it out through the spray head 2038 onto the turned-over sludge. At the same time, the moving rack 2035 on the right side moves upward, and the spray head 2038 does not spray the solution. The feeding pipe 2033 replenishes the solution in the medicine storage cylinder 2032 into the spraying tank 2031. After the driving motor 2021 rotates for a set time, the forward and reverse rotation technology of the driving motor 2021 is an existing technology and will not be described in detail in this application. The nut seat 2024 stops moving to the right, and the driving motor 2021 works in reverse again, driving the driving lead screw 2023 to reverse, and the nut seat 2024 moves to the left, driving the two spraying components 203 to move to the left. At this time, the moving directions of the two moving racks 2035 are opposite, realizing the replenishment of the solution in the spraying tank 2031 on the left side and the spraying of the solution from the spraying tank 2031 on the right side. Throughout the process, the solution is continuously replenished and sprayed onto the turned-over sludge, ensuring that the sludge is fully in contact with the solution for denitrification treatment, improving the sludge digestion and denitrification effect and stability.

[0065] Embodiment 2

[0066] Refer to Figure 5 and Figure 6 , which is the second embodiment of the present invention.

[0067] In this embodiment, preferably, a longitudinal moving member 204 for driving the flipping member 201 to move back and forth is provided between the fixing plate 2014 and the connecting rod 205. By using the longitudinal moving member 204, while the flipping member 201 can move left and right, it can cooperate with the connecting rod 205 to realize the front and back movement of the flipping member 201, so as to solve the problem of the distance between adjacent bidirectional pawls 2012 while flipping the sludge, so that the sludge can be fully flipped and contacted with the sprayed solution, and there will be no accumulation dead angle, improving the sludge digestion and denitrification effect. The longitudinal moving member 204 includes:

[0068] A fixed rack 2041 fixed on the inner surface of the lower end of the rectangular frame 2022. A linear gear 2042 meshing with the fixed rack 2041 is sleeved on the connecting rod 205. The two are meshed to facilitate driving the connecting rod 205 to rotate;

[0069] A cylindrical cam 2044 sleeved on the middle position of the connecting rod 205. A cam groove 2045 is provided on the surface of the cylindrical cam 2044. A limit slider 2047 is arranged in the cam groove 2045. As the cylindrical cam 2044 rotates, the limit slider 2047 can move along the cam groove 2045, driving the T-shaped rod 2046 to move synchronously;

[0070] A T-shaped rod 2046 connected to the limit slider 2047. The upper end of the fixing plate 2014 is fixedly sleeved on the transverse end of the T-shaped rod 2046. The two can move synchronously, facilitating driving the mounting plate 2011 and the bidirectional pawl 2012 to move.

[0071] In this embodiment, preferably, the longitudinal moving member 204 further includes a limit frame 2043 fixed on the left side of the nut seat 2024. The two relatively distributed limit frames 2043 are respectively movably connected to the longitudinal ends of the T-shaped rod 2046. The limit frame 2043 neither affects the front and back movement of the T-shaped rod 2046 nor allows the two to move left and right synchronously.

[0072] In summary, during use, when the nut seat 2024 moves horizontally, it drives the linear gear 2042 thereon to move and mesh with the fixed rack 2041. While the two are meshed, it drives the connecting rod 205 to rotate, thereby driving the cylindrical cam 2044 thereon to rotate, and the cam groove 2045 thereon rotates. Since the limit frame 2043 guides the T-shaped rod 2046, the T-shaped rod 2046 will not rotate, and as the cam groove 2045 rotates, the limit slider 2047 slides in the groove, driving the T-shaped rod 2046 to move forward or backward, driving the fixing plate 2014, the mounting plate 2011 and the bidirectional pawl 2012 to move back and forth, flipping the sludge in the sludge denitrification chamber 101 left and right and front and back, turning out the covered sludge, and facilitating the contacted denitrification of the turned-out sludge with the subsequent sprayed solution.

[0073] Embodiment Three

[0074] Reference Figure 8 , which is the third embodiment of the present invention.

[0075] In this embodiment, preferably, a plurality of anti-settlement members 300 are provided between the lower surface of the piston plate 2034 and the bottom of the spraying tank 2031. By using the anti-settlement members 300, during the process of spraying the solution, the solution in the spraying tank 2031 can be mixed to prevent the aggregation of bacteria colonies, ensuring the uniformity of the solution, facilitating the contact between the sprayed solution and the sludge, and fully performing denitrification treatment on the sludge. The anti-settlement members 300 perform anti-settlement treatment on the solution in the spraying tank 2031. The anti-settlement members 300 include:

[0076] An outer tube 301 fixed to the lower surface of the piston plate 2034. The distance that the piston plate 2034 moves downward is coordinated with the stroke of the meshing movement of the straight gear 2042 and the moving rack 2035. That is, after the straight gear 2042 moves horizontally to the set stroke, the vertical movement stroke of the moving rack 2035 satisfies the downward movement stroke of the piston plate 2034. The outer tube 301 cooperates with the inner twist rod 302, and the inner twist rod 302 extends into the cylindrical cavity, and there will be no situation of working conflict. A spiral cavity for cooperating with the inner twist rod 302 is left inside the outer tube 301. A chassis 303 is provided at the bottom of the spraying tank 2031 and is located below the outer tube 301;

[0077] An inner twist rod 302 fixed to the upper surface of the chassis 303 and extending into the inner part of the outer tube 301. The two are in spiral cooperation. As the outer tube 301 moves downward, it can drive the cooperating inner twist rod 302 to rotate, and the thread inclination angles on their surfaces can be set according to the needs;

[0078] A plurality of mixing rods 305 installed on the circumferential surface of the chassis 303. A plurality of ball head columns 304 for supporting the chassis 303 are provided at the bottom of the spraying tank 2031. The ball head columns 304 play a supporting role for the chassis 303 and do not affect the rotation of the chassis 303 at the same time.

[0079] In this embodiment, preferably, an annular groove 306 slidably engaged with the upper end of the ball head column 304 is formed on the lower surface of the chassis 303. A cylindrical cavity is left at the upper end of the outer tube 301. A movable plate 307 is provided at the bottom of the cylindrical cavity. An elastic member 308 is provided between the upper surface of the movable plate 307 and the top of the cylindrical cavity. The elastic member 308 can be compressed under force, facilitating the upper end of the inner twist rod 302 to extend into the cylindrical cavity.

[0080] In this embodiment, preferably, a partition is provided inside the sludge treatment box 100. The partition divides the inside of the sludge treatment box 100 into a sludge denitrification chamber 101 and a sewage treatment chamber 102. Sewage pipes 103 are provided inside both the sludge denitrification chamber 101 and the sewage treatment chamber 102. A support frame 104 for supporting the sewage pipes 103 is provided on the inner wall of the sludge treatment box 100, and the support frame 104 will not conflict with the mounting plate 2011 and the double-sided claw 2012.

[0081] In summary, during use, as the piston plate 2034 moves downward, it drives the outer tube 301 to move downward. The outer tube 301 is in spiral cooperation with the inner twist rod 302. Therefore, as the outer tube 301 moves, it drives the inner twist rod 302 to rotate, driving the chassis 303 to rotate. The ball head column 304 slides in the annular groove 306, driving the mixing rod 305 to rotate to mix the bottom of the spraying tank 2031, preventing the bacterial colonies from settling and converging. When the outer tube 301 continues to move downward, the inner twist rod 302 will contact the movable plate 307. The movable plate 307 is forced to move upward, compressing the elastic member 308. The inner twist rod 302 extends into the cylindrical cavity, increasing the downward movement range of the piston plate 2034. When the piston plate 2034 moves upward, it drives the outer tube 301 to move upward, and the chassis 303 rotates in the reverse direction, mixing the replenished solution again to prevent sedimentation. Throughout the process, it neither affects the normal discharge or replenishment of the solution, nor can it avoid the aggregation of bacterial colonies, facilitating the digestion and denitrification treatment of sludge.

[0082] Embodiment 4

[0083] This embodiment is obtained by combining Embodiment 1, Embodiment 2, and Embodiment 3.

[0084] During use, after the sewage from the sewage treatment plant is pretreated, the pretreated sewage is sent into the sludge denitrification chamber 101, allowing the sludge and sewage to settle. The upper-layer sewage enters the sewage treatment chamber 102, while the sludge remains in the sludge denitrification chamber 101. The transverse movement member 202 is used to drive the flipping member 201 and the spraying member 203 to move synchronously. While the sludge is flipped, the solution is sprayed on the sludge for sufficient denitrification treatment of the sludge. In cooperation with the longitudinal movement member 204, the flipping member 201 moves back and forth, and while the spraying member 203 moves and sprays, it realizes the anti-sedimentation mixing of the solution inside the spraying tank 2031, fully and evenly digesting and denitrifying the sludge, increasing the sufficiency and stability of sludge denitrification. The denitrified sludge is discharged through the sewage outlet on the surface of the sludge treatment box 100 for subsequent treatment, and the sewage is treated in the sewage treatment chamber 102. The sludge treatment box 100 in this application is a part of the sludge treatment. The subsequent sludge will enter the subsequent process for further treatment, and the various structures in this application can be designed in terms of size and shape according to the actual sludge denitrification treatment needs on the premise of meeting the working principle and without conflict.

[0085] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A sewage plant sludge digestion and denitrification and sludge stabilization device, characterized in that, Including: A sludge treatment box body (100), inside which a sludge denitrification chamber (101) is provided; A flipping denitrification mechanism (200) installed on the top of the sludge treatment box body (100) for flipping and denitrifying the sludge inside the sludge denitrification chamber (101). The flipping denitrification mechanism (200) includes a lateral movement member (202) installed on the inner wall of the sludge treatment box body (100), a spraying member (203) driven by the lateral movement member (202) to laterally move and spray solution, and a flipping member (201) extending to the bottom of the sludge denitrification chamber (101) to flip the sludge; The lateral movement member (202) includes a driving lead screw (2023) laterally installed on the inner wall of the sludge treatment box body (100). A nut seat (2024) is sleeved on the driving lead screw (2023). A connecting rod (205) is arranged between two relatively distributed nut seats (2024). The flipping member (201) is connected to the connecting rod (205). The spraying member (203) is installed on the upper surface of the nut seat (2024).

2. The sewage plant sludge digestion denitrification and sludge stabilization device according to claim 1, characterized in that, The lateral movement member (202) for driving the spraying member (203) to laterally move further includes: A rectangular frame (2022) laterally fixed on the inner wall of the sludge treatment box body (100). The nut seat (2024) is located in the rectangular frame (2022), and the two are in sliding fit; A driving motor (2021) installed on the outer side wall of the sludge treatment box body (100). The driving lead screw (2023) rotates in the rectangular frame (2022), and the driving motor (2021) is connected to one end of the driving lead screw (2023).

3. The sewage treatment plant sludge digestion denitrification and sludge stabilization device according to claim 2, characterized in that, The flipping member (201) for flipping the sludge includes: A mounting plate (2011) longitudinally located at the bottom of the sludge denitrification chamber (101). A plurality of bidirectional pawls (2012) are arranged on the lower surface of the mounting plate (2011); A connecting plate (2013) for connecting and fixing a plurality of mounting plates (2011); And a fixing plate (2014) vertically fixed on the upper surface of the connecting plate (2013). The fixing plate (2014) is movably connected to the connecting rod (205).

4. A sewage plant sludge digestion denitrification and sludge stabilization device according to claim 3, characterized in that, A longitudinal movement member (204) for driving the flipping member (201) to move back and forth is arranged between the fixing plate (2014) and the connecting rod (205). The longitudinal movement member (204) includes: A fixed rack (2041) fixed on the inner surface of the lower end of the rectangular frame (2022). A linear gear (2042) meshing with the fixed rack (2041) is sleeved on the connecting rod (205); A cylindrical cam (2044) sleeved on the middle position of the connecting rod (205). A cam groove (2045) is formed on the surface of the cylindrical cam (2044). A limit slider (2047) is arranged in the cam groove (2045); A T-shaped rod (2046) connected to the limit slider (2047). The upper end of the fixing plate (2014) is fixedly sleeved on the lateral end of the T-shaped rod (2046).

5. A sewage plant sludge digestion denitrification and sludge stabilization device according to claim 4, characterized in that, The longitudinal moving member (204) further includes a limiting frame (2043) fixed to the left side of the nut seat (2024), and the two relatively distributed limiting frames (2043) are respectively movably connected to the longitudinal ends of the T-shaped rod (2046).

6. The sewage plant sludge digestion and denitrification and sludge stabilization device according to claim 4, characterized in that, The spraying member (203) for spraying a solution onto the sludge at the bottom of the sludge denitrification chamber (101) includes: A spraying tank (2031) installed on the upper surface of the nut seat (2024), and a piston plate (2034) is arranged inside the spraying tank (2031); A moving rack (2035) vertically located outside the straight gear (2042), and the other end of the moving rack (2035) penetrates through the top of the spraying tank (2031) and is connected to the upper surface of the piston plate (2034); A distribution pipe (2037) is arranged between the sides of the two spraying tanks (2031), and a plurality of spray heads (2038) are arranged on the lower surface of the distribution pipe (2037).

7. A sewage plant sludge digestion and denitrification and sludge stabilization device according to claim 6, characterized in that, The spraying member (203) further includes a medicine storage cylinder (2032) fixed to the outer surface of the sludge treatment box body (100), and a material extraction pipe (2033) is arranged between the top of the medicine storage cylinder (2032) and the rear surface of the spraying tank (2031).

8. A sewage plant sludge digestion and denitrification and sludge stabilization device according to claim 7, characterized in that, A plurality of anti-settling members (300) are arranged between the lower surface of the piston plate (2034) and the bottom of the spraying tank (2031), and the anti-settling members (300) perform anti-settling treatment on the solution in the spraying tank (2031). The anti-settling members (300) include: An outer pipe (301) fixed to the lower surface of the piston plate (2034), and a chassis (303) is arranged at the bottom of the spraying tank (2031) below the outer pipe (301); An inner twist rod (302) fixed to the upper surface of the chassis (303) and extending into the outer pipe (301); A plurality of mixing rods (305) are installed on the circumferential surface of the chassis (303), and a plurality of ball head columns (304) for supporting the chassis (303) are arranged at the bottom of the spraying tank (2031).

9. A sewage plant sludge digestion denitrification and sludge stabilization device according to claim 8, characterized in that, An annular groove (306) slidably matched with the upper end of the ball head column (304) is formed on the lower surface of the chassis (303), a cylindrical cavity is left at the upper end of the outer pipe (301), a movable plate (307) is arranged at the bottom of the cylindrical cavity, and an elastic member (308) is arranged between the upper surface of the movable plate (307) and the top of the cylindrical cavity.

10. A sewage plant sludge digestion and denitrification and sludge stabilization device according to claim 1, characterized in that, A partition is arranged inside the sludge treatment box body (100), and the partition divides the inside of the sludge treatment box body (100) into a sludge denitrification chamber (101) and a sewage treatment chamber (102), and sewage pipes (103) are arranged inside both the sludge denitrification chamber (101) and the sewage treatment chamber (102).

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