Wet-heat hydrolysis tank for sewage treatment

Abstract

The utility model provides a damp-heat hydrolysis tank for sewage treatment, which relates to the technical field of sewage treatment, and comprises a damp-heat hydrolysis tank body, a sewage inlet is arranged above the damp-heat hydrolysis tank body, a sewage outlet is arranged below the damp-heat hydrolysis tank body, a driving motor is fixedly arranged above the damp-heat hydrolysis tank body through a support, and the driving motor is connected with the damp-heat hydrolysis tank body. A tank body inner rotating shaft is rotationally connected to the interior of the moist heat hydrolysis tank body, the lower end of the tank body inner rotating shaft is rotationally connected to the middle of the bottom of the interior of the moist heat hydrolysis tank body, and the lifting stirring disc stirs wastewater at different layering heights in the moist heat hydrolysis tank body in the lifting process; by arranging the lifting stirring disc, wastewater at different heights is mixed through stirring of the lifting stirring disc, so that the hydrolysis of the sewage is more uniform, and the problems that the stirring blades are arranged at fixed heights in the tank body, the sewage at different layers cannot be stirred respectively during stirring, the stirring effect is poor, and the hydrolysis efficiency of the sewage is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment wet-heat hydrolysis tank. Background Art

[0002] Sewage treatment hot water hydrolysis tank is a hot water hydrolysis tank used for leachate treatment. The tank body consists of a jacket, insulation, cylinder, appearance and various pipe connectors. The pipe body has a built-in heating mechanism. The leachate is hydrolyzed by heating inside the tank body, and is equipped with auxiliary devices such as stirring, slag discharge and temperature monitoring.

[0003] Traditional wet hot water hydrolysis tanks are equipped with stirring devices. The common stirring mechanism of the hydrolysis tank is a motor-driven rotary shaft, which drives the stirring blades to rotate to stir the sewage inside the tank. In the transmission stirring method, due to the single stirring direction, it is easy for the sewage inside the tank to form regular vortices, thereby reducing the impact and contact between the sewage. The stirring blades are set at a fixed height inside the tank. During stirring, the sewage in different layers cannot be stirred separately, and the stirring effect is poor, resulting in reduced sewage hydrolysis efficiency. Utility Model Content

[0004] The disclosed embodiment relates to a wet hot water hydrolysis tank for sewage treatment, so as to solve the problem that a stirring device is built into a conventional wet hot water hydrolysis tank. The common stirring mechanism of the hydrolysis tank is a motor-driven rotary shaft, which drives the stirring blades to rotate to achieve stirring of the sewage inside the tank body. In the transmission stirring mode, due to the single stirring direction, it is easy for the sewage inside the tank body to form regular vortices, thereby reducing the impact and contact between the sewage. The stirring blades are positioned at a fixed height inside the tank body, and the sewage in different layers cannot be stirred separately during stirring, resulting in poor stirring effect, which leads to the problem of reduced sewage hydrolysis efficiency.

[0005] In a first aspect of the present disclosure, a wet hot water hydrolysis tank for sewage treatment is provided, specifically comprising: a wet hot water hydrolysis tank body, a sewage inlet is provided on the top of the wet hot water hydrolysis tank body, a sewage outlet is provided on the bottom of the wet hot water hydrolysis tank body, a driving motor is fixedly installed on the top of the wet hot water hydrolysis tank body through a bracket, an internal rotating shaft of the tank body is rotatably connected, the lower end of the internal rotating shaft of the tank body is rotatably connected to the middle of the inner bottom of the wet hot water hydrolysis tank body, the axis of the internal rotating shaft of the tank body is colinear with the axis of the wet hot water hydrolysis tank body, an active rotating shaft is rotatably connected to the inside of the wet hot water hydrolysis tank body through a bearing, the axis of the active rotating shaft is perpendicular to the axis of the wet hot water hydrolysis tank body, and the driving motor is connected and drives the active rotating shaft through a belt drive; a lifting stirring plate is slidably connected to the inside of the wet hot water hydrolysis tank body, and the lifting stirring plate is perpendicular to the axis of the internal rotating shaft of the tank body.

[0006] In at least some embodiments, two built-in guide rods are fixedly connected to the inner wall of the wet hot water hydrolysis tank, and the cross-section of the built-in guide rods is a rectangular structure.

[0007] In at least some embodiments, a lifting and pushing screw is provided on the outer surface of the inner rotating shaft of the tank body, and a bidirectional driven bevel gear is fixedly connected to the upper end of the inner rotating shaft of the tank body.

[0008] In at least some embodiments, the active rotary shaft is connected to a first drive rotary wheel and a second drive rotary wheel by interference fit. The second drive rotary wheel is located on the right side of the first drive rotary wheel, and both the first drive rotary wheel and the second drive rotary wheel are conical structures, with the conical end of the first drive rotary wheel facing rightward.

[0009] In at least some embodiments, the conical end of the second driving wheel faces left, and one-third of a circle of transmission teeth are processed on the outer surfaces of the first driving wheel and the second driving wheel. The transmission teeth are meshed and connected with the bidirectional driven bevel gear, and the distribution angle of the transmission teeth of the first driving wheel and the second driving wheel differs by 180 degrees.

[0010] In at least some embodiments, the lifting stirring plate is a hollow disc-shaped structure, and a guide opening of a rectangular trough structure is respectively opened on the left and right sides of the lifting stirring plate, and four circular flow openings are opened longitudinally through the lifting stirring plate, and a blade connecting rod is fixedly connected to the inside of the flow opening, and an inclined blade is fixedly connected to the inner end of the blade connecting rod.

[0011] In at least some embodiments, a stirring disk opening is longitudinally penetrated through the center of the lifting stirring disk, a spiral lifting push block is fixedly connected inside the stirring disk opening, and the spiral lifting push block is spirally connected to the lifting propulsion spiral.

[0012] The utility model provides a sewage treatment hot and wet hydrolysis tank, which has the following beneficial effects:

[0013] In the hot and wet hydrolysis tank for sewage treatment of the utility model, the stirring mechanism inside the tank body is improved, and the lifting and stirring plate is driven to perform reciprocating lifting and lowering motion inside the tank body of the hot and wet hydrolysis tank through the drive of the driving motor and the action of a series of transmission mechanisms, and the lifting and stirring plate is immersed in the sewage inside the tank body of the hot and wet hydrolysis tank. During the descending process of the lifting and stirring plate, the water located at the bottom of the lifting and stirring plate flows upward through the flow port into the space above the lifting and stirring plate. During this process, the water flows through the inclined blades and rubs against the inclined blades, so that the water flows upward while forming a vortex, thereby achieving the stirring effect of the sewage. The vortices in multiple rotating directions are formed in the wastewater through the action of the flow ports at four sides, thereby avoiding the formation of directional vortices in the sewage inside the tank body of the hot and wet hydrolysis tank, increasing the collision between the water flows, and improving the stirring effect.

[0014] In addition, through the arrangement of the first driving wheel and the second driving wheel, the first driving wheel and the second driving wheel respectively form a gear transmission with the two-way driven bevel gear, and the first driving wheel and the second driving wheel respectively mesh with the two-way driven bevel gear from both sides. When the first driving wheel meshes with the two-way driven bevel gear, the vacant direction of the second driving wheel faces the two-way driven bevel gear. When the first driving wheel is disengaged from the two-way driven bevel gear, as the active shaft continues to rotate, the teeth of the second driving wheel mesh with the two-way driven bevel gear to form a transmission, and drive the two-way driven bevel gear to rotate in the opposite direction, thereby realizing the reciprocating lifting and lowering control of the lifting stirring plate, so that the wastewater at different layer heights inside the tank body of the wet hot water hydrolysis tank is stirred during the lifting and lowering process of the lifting stirring plate, and the wastewater at different heights is merged through the stirring of the lifting stirring plate, which can make the hydrolysis of the sewage more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 It shows a schematic diagram of the structure inside the tank body of the wet hot water hydrolysis tank of the present application;

[0020] Figure 3 Shows this application Figure 2 A schematic diagram of the front view of the structure;

[0021] Figure 4 It shows a schematic diagram of the structure of the lifting stirring plate of the present application;

[0022] Figure 5 It shows a schematic diagram of the structure of the lifting stirring plate and the internal rotating shaft of the tank body in the present application;

[0023] Figure 6 It shows a schematic diagram of the structure inside the lifting stirring plate of the present application;

[0024] Figure 7 This application shows Figure 2 Schematic diagram of the partially enlarged structure at point A in the middle.

[0025] Reference numerals list

[0026] 1. Wet hot water hydrolysis tank body; 101. Built-in guide rod; 2. Tank body inner rotating shaft; 201. Lifting and pushing spiral; 202. Two-way driven bevel gear; 3. Driving motor; 4. Active rotating shaft; 401. First driving rotary wheel; 402. Second driving rotary wheel; 5. Lifting and pulling stirring plate; 501. Guide port; 502. Flow port; 503. Blade connecting rod; 504. Inclined blade; 505. Stirring plate through-hole; 506. Spiral lifting and pushing block; 6. Sewage inlet; 7. Sewage outlet. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1: Please refer to Figures 1 to 7 :

[0029] The utility model proposes a wet hot water hydrolysis tank for sewage treatment, comprising: a wet hot water hydrolysis tank body 1, a sewage inlet 6 is arranged above the wet hot water hydrolysis tank body 1, a sewage outlet 7 is arranged below the wet hot water hydrolysis tank body 1, a driving motor 3 is fixedly installed above the wet hot water hydrolysis tank body 1 through a bracket, two built-in guide rods 101 are fixedly connected to the inner wall of the wet hot water hydrolysis tank body 1, the cross section of the built-in guide rods 101 is a rectangular structure, the inside of the wet hot water hydrolysis tank body 1 is rotatably connected with a tank internal rotating shaft 2, the lower end of the tank internal rotating shaft 2 is rotatably connected to the middle of the inner bottom of the wet hot water hydrolysis tank body 1, and the axis of the tank internal rotating shaft 2 is aligned with the inner wall of the wet hot water hydrolysis tank body 1. The axes are collinear, and a lifting and propulsion screw 201 is provided on the outer surface of the internal rotating shaft 2 of the tank body. A bidirectional driven bevel gear 202 is fixedly connected to the upper end of the internal rotating shaft 2 of the tank body. An active rotating shaft 4 is rotatably connected to the inside of the wet hot water hydrolysis tank body 1 through a bearing. The axis of the active rotating shaft 4 is perpendicular to the axis of the wet hot water hydrolysis tank body 1. The driving motor 3 is connected and drives the active rotating shaft 4 through a belt drive; the lifting and stirring disk 5 is slidably connected to the inside of the wet hot water hydrolysis tank body 1, and the lifting and stirring disk 5 is perpendicular to the axis of the internal rotating shaft 2 of the tank body. After starting the driving motor 3, the speed of the active rotating shaft 4 is controlled to be 10r / min through the reducer between the driving motor 3 and the active rotating shaft 4.

[0030] In this embodiment, the active rotary shaft 4 is connected with a first driving rotary wheel 401 and a second driving rotary wheel 402 by interference fit. The second driving rotary wheel 402 is located on the right side of the first driving rotary wheel 401. Both the first driving rotary wheel 401 and the second driving rotary wheel 402 are conical structures, and the conical end of the first driving rotary wheel 401 faces right; the conical end of the second driving rotary wheel 402 faces left. One-third of a circle of transmission teeth are processed on the outer surfaces of the first driving rotary wheel 401 and the second driving rotary wheel 402. The transmission teeth are meshed and connected with the two-way driven bevel gear 202. The distribution angle of the transmission teeth of the first driving rotary wheel 401 and the second driving rotary wheel 402 differs by 180 degrees. The active rotary shaft 4 rotates slowly at a speed of 10r / min under the cooperation of the driving motor 3 and the reducer. When the transmission teeth of the first driving rotary wheel 401 are meshed with the two-way driven bevel gear 202, the distribution angle of the transmission teeth of the second driving rotary wheel 402 is opposite to that of the first driving rotary wheel 401. In this state, The lower second driving wheel 402 is not meshed with the bidirectional driven bevel gear 202, and the bidirectional driven bevel gear 202 is driven to rotate by the rotation of the first driving wheel 401. When the first driving wheel 401 is disengaged from the bidirectional driven bevel gear 202, as the active shaft 4 continues to rotate, the teeth of the second driving wheel 402 mesh with the bidirectional driven bevel gear 202 to form a transmission, and drive the bidirectional driven bevel gear 202 to rotate in the opposite direction, thereby realizing the bidirectional drive of the internal rotating shaft 2 of the tank body, so that the internal rotating shaft 2 of the tank body can automatically switch the rotation direction. During the reverse rotation drive process, due to the slow rotation speed of the active shaft 4 and the water resistance inside the tank body slowing down the inertia of the movement of the lifting stirring plate 5, the rotation inertia of the bidirectional driven bevel gear 202 can be further slowed down, thereby reducing the impact and damage to the gear.

[0031] In this embodiment, a stirring plate opening 505 is provided longitudinally through the center of the lifting stirring plate 5, and a spiral lifting push block 506 is fixedly connected to the inside of the stirring plate opening 505. The spiral lifting push block 506 is spirally connected to the lifting propulsion screw 201. When the internal rotating shaft 2 of the tank body is driven to rotate by the first driving rotary wheel 401 or the second driving rotary wheel 402, the lifting propulsion screw 201 and the spiral hole in the middle of the spiral lifting push block 506 form a spiral transmission, and the lifting stirring plate 5 is driven by the spiral transmission to control the longitudinal displacement.

[0032] Embodiment 2

[0033] This embodiment is an improved solution of the first embodiment. Figures 1 to 7As shown, the lifting stirring plate 5 is a hollow disc-shaped structure, and a guide opening 501 of a rectangular slot structure is respectively opened on the left and right sides of the lifting stirring plate 5, and the two guide openings 501 are respectively slidably connected to two built-in guide rods 101, which play a guiding role for the lifting stirring plate 5 and circumferentially fix the lifting stirring plate 5 to prevent the lifting stirring plate 5 from rotating inside the wet hot water hydrolysis tank body 1. Four circular flow openings 502 are opened longitudinally on the lifting stirring plate 5, and a blade connecting rod 503 is fixedly connected inside the flow opening 502. The blade connecting rod 503 is fixedly connected to the blade connecting rod 503. An inclined blade 504 is fixedly connected to the inner end of the rod 503. During the lifting and displacement of the lifting stirring plate 5, the wastewater inside the wet hot water hydrolysis tank body 1 can be squeezed. The wastewater inside the wet hot water hydrolysis tank body 1 passes through the flow port 502 under the extrusion effect. While passing through the flow port 502, the wastewater forms a vortex through the obliquely arranged inclined blades 504. Through the action of the four flow ports 502, vortices in multiple rotating directions are formed in the wastewater, which prevents the sewage inside the wet hot water hydrolysis tank body 1 from forming a directional vortex, and causes the sewage to collide with each other and be evenly stirred.

[0034] When the tank body of the present embodiment is working, first, sewage is poured into the tank body 1 of the wet hot water hydrolysis tank through the sewage inlet 6, and the sewage inside the tank body 1 of the wet hot water hydrolysis tank is heated by the heating mechanism to promote the hydrolysis of the sewage, and the driving motor 3 is started. The driving motor 3 drives the active rotary shaft 4 to be oriented at a uniform speed through the chain transmission. Since there is a 180-degree deviation in the distribution angle of the transmission teeth of the first driving rotary wheel 401 and the second driving rotary wheel 402, when the active rotary shaft 4 rotates at a uniform speed, the first driving rotary wheel 401 and the second driving rotary wheel 402 are alternately meshed and connected with the bidirectional driven bevel gear 202, so that the internal rotary shaft 2 of the tank body is reversed and rotated, and the rotation direction is automatically switched. When the internal rotary shaft 2 of the tank body rotates, the lifting and lowering screw 201 and the spiral lifting and lowering push block 506 drive the lifting and lowering screw 201 to rotate in the opposite direction. The stirring disk 5 moves longitudinally, and as the rotation direction of the inner rotating shaft 2 of the tank body changes, the lifting stirring disk 5 is driven to reciprocate and lift. During the lifting and displacement process of the lifting stirring disk 5, the wastewater inside the tank body 1 of the wet hot water hydrolysis tank can be squeezed. The wastewater inside the tank body 1 of the wet hot water hydrolysis tank passes through the flow port 502 under the extrusion effect. While passing through the flow port 502, the wastewater forms a vortex through the obliquely arranged oblique blades 504. Through the action of the four flow ports 502, vortices in multiple rotation directions are formed in the wastewater, which avoids the sewage inside the tank body 1 of the wet hot water hydrolysis tank from forming a directional vortex, makes the sewage collide with each other to be evenly stirred, and as the lifting and lowering movement of the lifting stirring disk 5 occurs, the wastewater in different height layers is evenly stirred, which is beneficial to improving the efficiency and uniformity of the wet hot water hydrolysis of the sewage.

[0035] In this article, there are a few points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A sewage treatment hot water hydrolysis tank, comprising: A wet hot water hydrolysis tank body (1), wherein a sewage inlet (6) is provided on the top of the wet hot water hydrolysis tank body (1), and a sewage outlet (7) is provided on the bottom of the wet hot water hydrolysis tank body (1), characterized in that a driving motor (3) is fixedly installed on the top of the wet hot water hydrolysis tank body (1) through a bracket, a tank body internal rotating shaft (2) is rotatably connected inside the wet hot water hydrolysis tank body (1), the lower end of the tank body internal rotating shaft (2) is rotatably connected inside the wet hot water hydrolysis tank body (1), an active rotating shaft (4) is rotatably connected inside the wet hot water hydrolysis tank body (1) through a bearing, and the driving motor (3) is connected and drives the active rotating shaft (4) through a belt drive; a lifting stirring plate (5) is slidably connected inside the wet hot water hydrolysis tank body (1), and the lifting stirring plate (5) is perpendicular to the axis of the tank body internal rotating shaft (2).

2. A sewage treatment hot water hydrolysis tank according to claim 1, characterized in that: Two built-in guide rods (101) are fixedly connected to the inner wall of the wet hot water hydrolysis tank body (1), and the cross-section of the built-in guide rods (101) is a rectangular structure.

3. A sewage treatment hot water hydrolysis tank according to claim 1, characterized in that: A lifting and pushing screw (201) is arranged on the outer surface of the internal rotating shaft (2) of the tank, and a bidirectional driven bevel gear (202) is fixedly connected to the upper end of the internal rotating shaft (2) of the tank.

4. A sewage treatment hot water hydrolysis tank according to claim 3, characterized in that: The active rotary shaft (4) is connected to a first driving rotary wheel (401) and a second driving rotary wheel (402) by interference fit, the second driving rotary wheel (402) is located on the right side of the first driving rotary wheel (401), the first driving rotary wheel (401) and the second driving rotary wheel (402) are both conical structures, and the conical end of the first driving rotary wheel (401) faces rightward.

5. A sewage treatment hot water hydrolysis tank according to claim 4, characterized in that: The conical end of the second driving wheel (402) faces leftwards, and one-third of a circle of transmission teeth are processed on the outer surfaces of the first driving wheel (401) and the second driving wheel (402). The transmission teeth are meshed and connected with the bidirectional driven bevel gear (202), and the distribution angle of the transmission teeth of the first driving wheel (401) and the second driving wheel (402) differs by 180 degrees.

6. A sewage treatment hot water hydrolysis tank according to claim 3, characterized in that: The lifting stirring disc (5) is a hollow disc-shaped structure. A guide opening (501) of a rectangular trough structure is respectively provided on the left and right sides of the lifting stirring disc (5). Four flow openings (502) are longitudinally provided on the lifting stirring disc (5). A blade connecting rod (503) is fixedly connected inside the flow opening (502). An inclined blade (504) is fixedly connected to the inner end of the blade connecting rod (503).

7. A sewage treatment hot water hydrolysis tank according to claim 5, characterized in that: A stirring disc opening (505) is provided in the center of the lifting stirring disc (5) through the longitudinal direction, and a spiral lifting push block (506) is fixedly connected inside the stirring disc opening (505), and the spiral lifting push block (506) is spirally connected to the lifting propulsion screw (201).

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