Sludge flow metering device for self-flowing sludge discharge of sludge thickening tank

Abstract

The utility model relates to the technical field of sludge flow metering, and discloses a sludge flow metering device for self-flowing sludge discharge of a sludge thickener, which comprises a water tank body, a flange plate fixedly mounted at the bottom of the water tank body, a mounting plate arranged outside the flange plate, and an overflow weir plate arranged at the top of the water tank body. Adjusting and metering mechanisms are arranged inside and on the top of the water tank body, and auxiliary anti-blocking mechanisms are arranged outside and inside the water tank body. By arranging the adjusting and metering mechanism, the position of the movable weir plate can be dynamically adjusted so as to realize the switching between the discharge state and the non-discharge state of the sludge at the bottom of the pool, the flow value of the sludge can be calculated according to the scale value on the movable weir plate, and the sludge with overhigh water content can directly flow back to the front end of the sewage treatment structure, so that the sludge treatment efficiency is improved. And the problem of compression deformation of the fixed partition plate can be avoided, sludge on the two sides of the fixed partition plate can be effectively crushed through the auxiliary anti-blocking mechanism, and the anti-blocking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge flow metering, in particular to a sludge flow metering device used for gravity sludge discharge in a sludge concentration tank. Background Art

[0002] The sludge thickening tank is an important link in sewage treatment. Its function is to concentrate the suspended sludge in the sewage into sludge through separation, sedimentation and other methods, so as to reduce the amount of sludge and reduce the cost of subsequent treatment. In the thickening tank, solid particles fall by gravity, water is squeezed out of the mud, and the concentrated sludge is discharged from the bottom of the tank. The sludge water overflows from the weir on the tank surface (continuously) or flows out from the side outlet of the tank.

[0003] In the sludge thickening tank, there are generally two existing technical methods for sludge discharge: natural sludge discharge and mechanical sludge lifting. Among them, natural sludge discharge refers to the natural sedimentation of sludge to the bottom of the tank and the transportation to the sludge storage tank through the pipeline by relying on the water level pressure difference, while mechanical sludge lifting requires the use of a lifting pump to lift the sludge from the bottom of the tank to the sludge treatment equipment. Regardless of natural sludge discharge or mechanical sludge lifting, under the condition of stable sludge inlet volume and sludge concentration, the discharge of sludge and supernatant can reach a relatively stable and dynamic equilibrium state. However, if the inlet sludge concentration is too low, the water content of the sludge discharged from the thickening tank will be too high, and the thickening effect will be poor. When the inlet sludge concentration is too high, the solid flux on the surface of the thickening tank will be too large. When it exceeds the thickening capacity of the thickening tank, the SS of the overflow supernatant will increase, that is, sludge loss. Therefore, we urgently need to improve the sludge flow metering device used for gravity sludge discharge from the sludge thickening tank to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sludge flow metering device for gravity sludge discharge from a sludge thickening tank, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sludge flow metering device for gravity sludge discharge from a sludge thickening tank, comprising a water tank body, a flange fixedly mounted on the bottom of the water tank body, a mounting plate provided on the outside of the flange, an overflow weir provided on the top of the water tank body, an adjusting and metering mechanism provided inside and on the top of the water tank body, and an auxiliary anti-blocking mechanism provided on the outside and inside of the water tank body.

[0006] The adjustment and metering mechanism includes an adjustment component and an auxiliary shock-absorbing component, and the auxiliary shock-absorbing component is arranged outside the adjustment component.

[0007] Preferably, the adjustment component includes a fixed partition, which is fixedly installed inside the water tank body, a limit rod is fixedly installed inside the fixed partition, a screw is rotatably installed inside the fixed partition, a handwheel is fixedly installed on the top of the screw, a movable block is threadedly installed on the outside of the screw, and a movable weir plate is fixedly installed on the outside of the movable block, so as to facilitate dynamic adjustment of the position of the movable weir plate.

[0008] Preferably, a through hole is opened at the corresponding position of the movable block and the limiting rod, the limiting rod passes through the through hole, a sliding groove is opened at the corresponding position of the fixed partition and the movable block, and a scale value is set on the outside of the movable weir plate to facilitate the switching of external discharge and read the scale value of the sludge.

[0009] Preferably, the auxiliary shock-absorbing assembly includes a first mounting frame, which is fixedly installed on the outside of the fixed partition, a connecting plate is rotatably installed inside the first mounting frame, a sliding rod is fixedly installed inside the water tank body, a movable frame is slidably installed outside the sliding rod, a first spring is arranged outside the movable frame, and a first spring is arranged outside the first spring to avoid the problem of compression deformation of the fixed partition.

[0010] Preferably, an installation groove is opened inside the water tank body at a position corresponding to the slide rod and the movable frame, the first spring is arranged between the movable frame and the installation groove, and two groups of auxiliary shock-absorbing components are provided to facilitate achieving a better buffering effect.

[0011] Preferably, the auxiliary anti-blocking mechanism includes a mounting frame, which is fixedly installed on the right side of the water tank body. A first motor is fixedly installed inside the mounting frame, a first crushing roller is fixedly installed on the output shaft of the first motor, a second crushing roller is rotatably installed inside the water tank body, pulleys are fixedly installed on the outside of the second crushing roller and on the output shaft of the first motor, and a synchronous belt is installed on the external transmission of the pulley to facilitate auxiliary crushing of the sludge and avoid blockage.

[0012] Preferably, a reinforcement is fixedly installed on the top of the mounting frame, and mounting holes are provided inside the water tank body at positions corresponding to the first crushing roller and the second crushing roller, so as to facilitate the synchronous rotation of the first crushing roller and the second crushing roller, so as to effectively crush the sludge on both sides of the fixed partition and improve the anti-blocking effect.

[0013] Compared with the prior art, the present invention provides a sludge flow metering device for gravity sludge discharge from a sludge thickening tank, which has the following beneficial effects:

[0014] 1. The sludge flow metering device used for gravity sludge discharge in a sludge thickening tank is provided with an adjusting metering mechanism. During use, the position of the movable weir plate can be dynamically adjusted to realize the switching between the discharge and non-discharge states of the sludge at the bottom of the tank. The sludge flow value can be calculated by the scale value on the movable weir plate, and the thin sludge with too high water content can be directly returned to the front end of the sewage treatment structure, thereby improving the discharge effect and avoiding the problem of compression deformation of the fixed partition due to high water pressure or sludge pressure.

[0015] 2. The sludge flow metering device used for gravity sludge discharge in the sludge thickening tank is equipped with an auxiliary anti-blocking mechanism. During use, it can effectively crush the sludge on both sides of the fixed partition, improve the anti-blocking effect, avoid interference with subsequent sludge discharge, improve the use effect, and enhance the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the adjustment component of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the auxiliary shock-absorbing component of the utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the auxiliary anti-blocking mechanism of the utility model.

[0022] In the figure: 1. Water tank body; 2. Flange; 3. Mounting plate; 4. Overflow weir; 5. Adjusting and metering mechanism; 51. Adjusting assembly; 511. Fixed partition; 512. Limiting rod; 513. Screw; 514. Handwheel; 515. Movable block; 516. Movable weir; 52. Auxiliary shock-absorbing assembly; 521. First mounting frame; 522. Connecting plate; 523. Sliding rod; 524. Movable frame; 525. Damper body; 526. First spring; 6. Auxiliary anti-blocking mechanism; 61. Mounting frame; 62. First motor; 63. First crushing roller; 64. Second crushing roller; 65. Pulley; 66. Synchronous belt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] Example 1:

[0026] See also Figure 1-4 The utility model provides a technical solution: a sludge flow metering device for gravity sludge discharge from a sludge thickening tank, comprising a water tank body 1, a flange 2 fixedly mounted on the bottom of the water tank body 1, a mounting plate 3 provided on the outside of the flange 2, an overflow weir 4 provided on the top of the water tank body 1, an adjusting and metering mechanism 5 provided inside and on the top of the water tank body 1, and an auxiliary anti-blocking mechanism 6 provided on the outside and inside of the water tank body 1.

[0027] The adjusting and metering mechanism 5 includes an adjusting component 51 and an auxiliary shock-absorbing component 52 . The auxiliary shock-absorbing component 52 is arranged outside the adjusting component 51 .

[0028] Furthermore, the adjustment component 51 includes a fixed partition 511, which is fixedly installed inside the water tank body 1, a limit rod 512 is fixedly installed inside the fixed partition 511, a screw 513 is rotatably installed inside the fixed partition 511, a handwheel 514 is fixedly installed on the top of the screw 513, a movable block 515 is threadedly installed on the outside of the screw 513, and a movable weir plate 516 is fixedly installed on the outside of the movable block 515, so as to facilitate dynamic adjustment of the position of the movable weir plate 516.

[0029] Furthermore, a through hole is opened at the corresponding position of the movable block 515 and the limiting rod 512, the limiting rod 512 passes through the through hole, a sliding groove is opened at the corresponding position of the fixed partition 511 and the movable block 515, and a scale value is set on the outside of the movable weir plate 516 to facilitate the switching of external discharge and read the scale value of the sludge.

[0030] Furthermore, the auxiliary shock-absorbing assembly 52 includes a first mounting frame 521, which is fixedly installed on the outside of the fixed partition 511, and a connecting plate 522 is rotatably installed inside the first mounting frame 521. A slide rod 523 is fixedly installed inside the water tank body 1, and a movable frame 524 is slidably installed outside the slide rod 523. A first spring 526 is arranged outside the movable frame 524, and a first spring 526 is arranged outside the first spring 526 to avoid the problem of compression deformation of the fixed partition 511.

[0031] Furthermore, an installation groove is opened inside the water tank body 1 at a position corresponding to the slide rod 523 and the movable frame 524, the first spring 526 is arranged between the movable frame 524 and the installation groove, and two groups of auxiliary shock-absorbing components 52 are provided to facilitate achieving a better buffering effect.

[0032] Example 2:

[0033] See also Figure 5 , and combined with Example 1, it is further obtained that the auxiliary anti-blocking mechanism 6 includes a mounting frame 61, the mounting frame 61 is fixedly installed on the right side of the water tank body 1, a first motor 62 is fixedly installed inside the mounting frame 61, a first crushing roller 63 is fixedly installed on the output shaft of the first motor 62, a second crushing roller 64 is rotatably installed inside the water tank body 1, a pulley 65 is fixedly installed on the outside of the second crushing roller 64 and on the output shaft of the first motor 62, and a synchronous belt 66 is installed on the outside of the pulley 65 for auxiliary crushing of the sludge to avoid blockage.

[0034] Furthermore, a reinforcement is fixedly installed on the top of the mounting frame 61, and mounting holes are provided inside the water tank body 1 at positions corresponding to the first crushing roller 63 and the second crushing roller 64, so as to facilitate the synchronous rotation of the first crushing roller 63 and the second crushing roller 64, so as to effectively crush the sludge on both sides of the fixed partition 511 and improve the anti-blocking effect.

[0035] When the sludge on the bottom of the pool does not need to be discharged, the hand wheel 514 can be turned to rotate the screw 513. Under the action of the limit rod 512, the movable block 515 is moved accordingly, thereby moving the movable weir plate 516 upward. When the position of the movable weir plate 516 is higher than the height of the weir mouth of the overflow weir plate 4, the sludge on the bottom of the pool is not discharged. The sludge with a higher water content flows directly from the upper outlet weir and flows back to the front end of the sewage treatment facility or a designated location. When discharge is required, the hand wheel 514 can be turned in the opposite direction to rotate the screw 513 in the opposite direction. Under the action of the limit rod 512, the movable weir plate 516 can be moved in the opposite direction. When the position of the weir mouth of the movable weir plate 516 is lower than the weir mouth position of the overflow weir plate 4 of the sludge thickening tank, the scale value on the movable weir plate 516 is read and combined with the water level-flow relationship table to know the sludge flow rate. Value, at the same time, when the water pressure or sludge pressure is large, the connecting plate 522 will rotate inside the first mounting frame 521, so that the movable frame 524 can slide outside the slide rod 523. Under the action of the damper body 525 and the first spring 526, the pressure on the fixed partition 511 can be buffered to avoid the problem of deformation of the fixed partition 511. In order to avoid the problem of sludge adhering to the inside of the flange 2 during sewage discharge or work, which interferes with subsequent processing work, the first motor 62 can be turned on to rotate the first crushing roller 63 to crush the sludge. At the same time, the first motor 62 can rotate the pulley 65. Under the action of the synchronous belt 66, the pulley 65 on one side of the second crushing roller 64 can be rotated synchronously, so that the second crushing roller 64 can rotate synchronously to crush the sludge on both sides of the fixed partition 511 to avoid blockage.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A sludge flow metering device for gravity sludge discharge from a sludge thickening tank, comprising a water tank body (1), characterized in that: A flange (2) is fixedly mounted on the bottom of the water tank body (1), a mounting plate (3) is provided on the outside of the flange (2), an overflow weir (4) is provided on the top of the water tank body (1), an adjusting and metering mechanism (5) is provided inside and on the top of the water tank body (1), and an auxiliary anti-blocking mechanism (6) is provided on the outside and inside of the water tank body (1); The regulating and metering mechanism (5) comprises an regulating component (51) and an auxiliary shock-absorbing component (52), wherein the auxiliary shock-absorbing component (52) is arranged outside the regulating component (51).

2. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 1, characterized in that: The regulating assembly (51) comprises a fixed baffle (511), the fixed baffle (511) being fixedly mounted inside the water tank body (1), a limiting rod (512) being fixedly mounted inside the fixed baffle (511), a screw (513) being rotatably mounted inside the fixed baffle (511), a hand wheel (514) being fixedly mounted on the top of the screw (513), a movable block (515) being threadedly mounted on the outside of the screw (513), and a movable weir plate (516) being fixedly mounted on the outside of the movable block (515).

3. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 2, characterized in that: A through hole is provided at the corresponding position of the movable block (515) and the limiting rod (512), and the limiting rod (512) passes through the through hole. A sliding groove is provided at the corresponding position of the fixed partition (511) and the movable block (515), and a scale value is provided on the outside of the movable weir plate (516).

4. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 1, characterized in that: The auxiliary shock-absorbing component (52) includes a first mounting frame (521), the first mounting frame (521) is fixedly mounted on the outside of the fixed partition (511), a connecting plate (522) is rotatably mounted inside the first mounting frame (521), a sliding rod (523) is fixedly mounted inside the water tank body (1), a movable frame (524) is slidably mounted outside the sliding rod (523), a first spring (526) is arranged outside the movable frame (524), and a first spring (526) is arranged outside the first spring (526).

5. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 4, characterized in that: The water tank body (1) is provided with mounting grooves at positions corresponding to the slide rod (523) and the movable frame (524); the first spring (526) is arranged between the movable frame (524) and the mounting groove; and the auxiliary shock absorbing components (52) are provided in two groups.

6. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 1, characterized in that: The auxiliary anti-blocking mechanism (6) comprises a mounting frame (61), the mounting frame (61) being fixedly mounted on the right side of the water tank body (1), a first motor (62) being fixedly mounted inside the mounting frame (61), a first crushing roller (63) being fixedly mounted on the output shaft of the first motor (62), a second crushing roller (64) being rotatably mounted inside the water tank body (1), a pulley (65) being fixedly mounted on the outside of the second crushing roller (64) and on the output shaft of the first motor (62), and a synchronous belt (66) being mounted on the outside of the pulley (65).

7. The sludge flow metering device for gravity sludge discharge from a sludge thickening tank according to claim 6, characterized in that: A reinforcement piece is fixedly mounted on the top of the mounting frame (61), and mounting holes are provided inside the water tank body (1) at positions corresponding to the first crushing roller (63) and the second crushing roller (64).

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