Sludge reduction device

Abstract

The utility model provides a sludge reduction device and belongs to the technical field of sludge reduction. The sludge reduction device comprises a flocculation tank, a pretreatment mechanism and a dosing mechanism, the pretreatment mechanism is installed in an inner cavity of the flocculation tank and used for removing large particles in sewage, the pretreatment mechanism comprises a filter plate and a rotating shaft, the filter plate is installed in the inner cavity of the flocculation tank and used for filtering the large particles in the sewage, and the rotating shaft is rotatably installed in the inner cavity of the flocculation tank and used for adding the medicine to the flocculation tank. Stirring rods are symmetrically mounted on the side wall of the rotating shaft. The pretreatment mechanism is arranged, large particles in sewage are filtered through the filter plate, the burden of the subsequent flocculation step is reduced, the flocculation effect is guaranteed, the motor drives the rotating shaft to rotate clockwise, the arc-shaped scraper is driven to rotate synchronously, large-particle impurities attached to the surface of the filter plate are scraped, and the flocculation effect is improved. And the sewage is discharged out of the flocculation tank through the discharge chute and the discharge plate, so that the pretreatment of the sewage is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge reduction technology field, specifically, relate to a sludge reduction device. BACKGROUND

[0002] Sludge is the solid waste produced in the sewage treatment process, usually contains harmful substances, pathogenic microorganisms and chemical pollutants, if not effective treatment directly discharges, may contain heavy metals, organic pollutants and other harmful substances, long-term accumulation or application in farmland, may contaminate the soil, affect the health of soil and the growth of crops, therefore need to carry out sludge reduction treatment, through various physical, chemical or biological means, reduce the amount of residual sludge produced in the sewage treatment system, not only reduce the cost of sludge treatment and disposal, reduce the secondary pollution to the environment at the same time, through reducing the production of sludge and effective recycling, can reduce the dependence on natural resources, reduce the generation of waste, and through recycling, renewable energy and other ways to promote the sustainable development of ecological environment.

[0003] In the sludge reduction treatment process, flocculants need to be mixed into the sewage to accelerate the sedimentation of sludge, however, the existing sludge reduction device needs to be manually scattered with flocculants, which is inconvenient to operate, and cannot be uniformly scattered on the surface of the sewage, which is not conducive to the subsequent mixing work. UTILITARY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of sludge reduction device to overcome the above technical problems or at least partially solve the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a kind of sludge reduction device, including flocculation tank, pretreatment mechanism and dosing mechanism, the pretreatment mechanism is installed in flocculation tank inner chamber, for removing large particle in sewage, the pretreatment mechanism includes:

[0007] Filter plate, the filter plate is installed in flocculation tank inner chamber, for filtering large particle in sewage;

[0008] Shaft, the shaft is rotatably installed in flocculation tank inner chamber, the shaft side wall is symmetrically installed with stirring rod;

[0009] The dosing mechanism is installed in flocculation tank inner chamber, for filling flocculant, the dosing mechanism includes spray pipe and spray hole, the spray pipe is installed in filter plate bottom, and the spray pipe surface is provided with a plurality of spray holes.

[0010] In a preferred scheme, the surface of the flocculation tank is provided with a water inlet pipe for introducing sewage, and the bottom of the flocculation tank is provided with a discharge pipe for discharging.

[0011] In a preferred scheme, the flocculation tank is fixedly provided with a motor, and an output end of the motor is fixedly connected with one end of the rotating shaft, for driving the stirring rod to rotate, so as to mix the flocculant and the sewage.

[0012] In a preferred scheme, the rotating shaft is symmetrically provided with arc-shaped scrapers, and the arc-shaped scrapers are in contact with the surface of the filter plate, for scraping off the large-particle impurities on the surface of the filter plate.

[0013] In a preferred scheme, the flocculation tank is provided with a discharging groove in the side wall, for discharging the large-particle impurities, and the flocculation tank is fixedly provided with a discharging plate in the side wall.

[0014] In a preferred scheme, the rotating shaft is slidably provided with a protrusion, the inner cavity of the protrusion is provided with a spline groove, the rotating shaft is fixedly provided with a spline tooth, the spline tooth is engaged with the spline groove, the bottom of the protrusion is fixedly provided with a floating block, and the rotating shaft is fixedly provided with a limiting ring, for limiting the floating block.

[0015] In a preferred scheme, the flocculation tank is fixedly provided with a medicine injection tank in the inner cavity, the medicine injection tank is slidably provided with a piston in the inner cavity, the medicine injection tank is fixedly provided with a spring in the inner cavity, one end of the spring is fixedly connected with the medicine injection tank, the other end of the spring is fixedly connected with the piston, for driving the piston to move towards the protrusion, the piston is fixedly provided with a connecting rod in the side wall, one end of the connecting rod is fixedly provided with an abutting plate, and the abutting plate is in contact with the protrusion.

[0016] In a preferred scheme, the medicine injection tank is provided with a first one-way valve and a second one-way valve in the side wall, the flocculation tank is provided with a medicine box in the side wall, for storing the flocculant, a water pipe is connected between the first one-way valve and the spray pipe, and a water pipe is connected between the second one-way valve and the medicine box.

[0017] The sludge reduction device has the following beneficial effects:

[0018] 1. The pre-treatment mechanism is arranged, the filter plate is used for filtering the large-particle impurities in the sewage, the burden of the subsequent flocculation step is reduced, the flocculation effect is ensured, the rotating shaft is driven to rotate clockwise by the motor, the arc-shaped scraper is driven to rotate synchronously, the large-particle impurities attached to the surface of the filter plate are scraped off, and the flocculation tank is discharged through the discharging groove and the discharging plate, so as to complete the pre-treatment of the sewage.

[0019] 2、By setting the dosing mechanism, the motor drives the rotating shaft to rotate, the keyway and the spline tooth drive the protruding block to rotate synchronously, the abutment plate is extruded, and under the action of the spring, the piston moves left and right reciprocatingly, the first one-way valve and the second one-way valve are alternately communicated, the flocculating agent in the medicine box is injected into the spray pipe, and is uniformly sprayed to the surface of the sewage from the spray hole, and the flocculating agent is mixed into the sewage by the stirring rod, the flocculation efficiency is improved, as the water level in the flocculation tank rises, the floating block drives the protruding block to move up synchronously, the protruding block is separated from the abutment plate, and the automatic injection of medicine can be stopped, which is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 is a perspective view provided by the embodiments of the present application;

[0022] Figure 2 is a side perspective view provided by the embodiments of the present application;

[0023] Figure 3 is a side sectional view provided by the embodiments of the present application;

[0024] Figure 4 is another perspective sectional view provided by the embodiments of the present application;

[0025] Figure 5 is a perspective view of the protruding block provided by the embodiments of the present application.

[0026] In the figure: 1, flocculation tank; 2, water inlet pipe; 3, discharge pipe; 4, pretreatment mechanism; 401, filter plate; 402, rotating shaft; 403, motor; 404, arc-shaped scraper; 405, discharge chute; 406, discharge plate; 407, stirring rod; 5, dosing mechanism; 501, spray pipe; 502, spray hole; 503, protruding block; 504, keyway; 505, spline tooth; 506, floating block; 507, limiting ring; 508, medicine injection tank; 509, piston; 510, spring; 511, connecting rod; 512, abutment plate; 513, first one-way valve; 514, second one-way valve; 515, medicine box. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] With reference to Figures 1-5 The utility model provides a kind of technical scheme: a kind of sludge reduction device, including flocculation tank 1, pretreatment mechanism 4 and dosing mechanism 5, flocculation tank 1 surface is equipped with inlet pipe 2, for passing into sewage, flocculation tank 1 bottom is equipped with discharge pipe 3, for discharging, pretreatment mechanism 4 is installed in flocculation tank 1 inner chamber, for removing large particle in sewage, pretreatment mechanism 4 includes filter plate 401 and shaft 402, filter plate 401 is installed in flocculation tank 1 inner chamber, for filtering large particle in sewage, shaft 402 is rotatably installed in flocculation tank 1 inner chamber, and stirring rod 407 is symmetrically installed on the side wall of shaft 402.

[0029] With reference to Figures 1-3 In a preferred embodiment, motor 403 is fixedly installed on the surface of flocculation tank 1, one end of the output of motor 403 is fixedly connected with shaft 402, for driving stirring rod 407 to rotate, for mixing flocculating agent and sewage, arc-shaped scraper 404 is symmetrically installed on the surface of shaft 402, arc-shaped scraper 404 is in contact with the surface of filter plate 401, for scraping large particle impurities on the surface of filter plate 401, discharge chute 405 is formed in the side wall of flocculation tank 1, for discharging large particle impurities, and discharge plate 406 is fixedly installed on the side wall of flocculation tank 1.

[0030] In a preferred embodiment, when using, sewage to be treated is passed into flocculation tank 1 by inlet pipe 2, and large particle in sewage is filtered by falling on the surface of filter plate 401, to reduce the burden of subsequent flocculation step, to ensure flocculation effect, and shaft 402 is driven to rotate clockwise by motor 403, to drive arc-shaped scraper 404 to rotate synchronously, to scrape large particle impurities adhered to the surface of filter plate 401, and to discharge flocculation tank 1 by discharge chute 405 and discharge plate 406, to complete pretreatment of sewage.

[0031] With reference to Figures 1-5In a preferred implementation, the dosing mechanism 5 is installed in the flocculation tank 1, which is used to add flocculants to help small sludge particles to aggregate into larger flocs, thereby improving the settling and dewatering properties. The dosing mechanism 5 includes a spray pipe 501 and a spray hole 502. The spray pipe 501 is installed at the bottom of the filter plate 401, and a plurality of spray holes 502 are formed on the surface of the spray pipe 501 for spraying flocculants. A protrusion 503 is slidingly installed on the surface of the rotating shaft 402, and a spline groove 504 is formed in the inner cavity of the protrusion 503. A spline tooth 505 is fixedly installed on the surface of the rotating shaft 402 and is engaged with the spline groove 504. When the motor 403 drives the rotating shaft 402 to rotate, the protrusion 503 is driven to rotate synchronously through the spline groove 504 and the spline tooth 505. A float 506 is fixedly installed at the bottom of the protrusion 503 for driving the protrusion 503 to move upward. A limiting ring 507 is fixedly installed on the surface of the rotating shaft 402 for limiting the float 506.

[0032] Referring to Figures 1-5 In a preferred implementation, a dosing tank 508 is fixedly installed in the inner cavity of the flocculation tank 1. A piston 509 is slidingly installed in the inner cavity of the dosing tank 508. A spring 510 is fixedly installed in the inner cavity of the dosing tank 508. One end of the spring 510 is fixedly connected with the dosing tank 508, and the other end of the spring 510 is fixedly connected with the piston 509 for driving the piston 509 to move towards the protrusion 503. A connecting rod 511 is fixedly installed on the side wall of the piston 509. A abutting plate 512 is fixedly installed at one end of the connecting rod 511 and is in contact with the protrusion 503. When the motor 403 drives the protrusion 503 to rotate, the abutting plate 512 is pressed, and the piston 509 is driven to reciprocate left and right under the action of the spring 510.

[0033] Referring to Figures 1-5 In a preferred implementation, a first one-way valve 513 and a second one-way valve 514 are installed on the side wall of the dosing tank 508. The first one-way valve 513 is unidirectionally communicated to the outer wall of the dosing tank 508 for discharging medicine. The second one-way valve 514 is unidirectionally communicated to the inner cavity of the dosing tank 508 for discharging medicine. A medicine tank 515 is installed on the side wall of the flocculation tank 1 for storing flocculants. A water pipe is connected between the first one-way valve 513 and the spray pipe 501. A water pipe is connected between the second one-way valve 514 and the medicine tank 515. When the protrusion 503 drives the piston 509 to reciprocate left and right, the first one-way valve 513 and the second one-way valve 514 are alternately communicated to inject the flocculants in the medicine tank 515 into the spray pipe 501, and the flocculants are uniformly sprayed onto the surface of the sewage through the spray hole 502 and mixed into the sewage by the stirring rod 407 to improve the flocculation efficiency. As the water level in the flocculation tank 1 rises, the float 506 pushes the protrusion 503 to move upward synchronously, so that the protrusion 503 is separated from the abutting plate 512, and the dosing can be automatically stopped, which is convenient to use.

[0034] In a preferred embodiment, when the motor 403 drives the rotating shaft 402 to rotate, the protrusion 503 is driven to rotate synchronously through the spline groove 504 and the spline teeth 505, the abutment plate 512 is extruded, and under the action of the spring 510, the piston 509 moves back and forth left and right, the first one-way valve 513 and the second one-way valve 514 are alternately connected, the flocculating agent in the medicine box 515 is injected into the spray pipe 501, and is uniformly sprayed from the spray hole 502 to the surface of the sewage, and the flocculating agent is mixed into the sewage by the stirring rod 407, the flocculating efficiency is improved, as the water level in the flocculation tank 1 rises, the floating block 506 pushes the protrusion 503 to move up synchronously, the protrusion 503 is separated from the abutment plate 512, and the automatic drug injection can be stopped, which is convenient to use.

[0035] Specifically, the working principle of the sludge reduction device is as follows: when in use, the sewage to be treated is introduced into the flocculation tank 1 through the water inlet pipe 2, the large particles in the sewage are filtered on the surface of the filter plate 401, the burden of the subsequent flocculation step is reduced, the flocculation effect is ensured, and the motor 403 drives the rotating shaft 402 to rotate clockwise, the arc-shaped scraper 404 is driven to rotate synchronously, the large particles adhered to the surface of the filter plate 401 are scraped off, and are discharged from the flocculation tank 1 through the discharge chute 405 and the discharge plate 406, completing the pretreatment of the sewage.

[0036] When the motor 403 drives the rotating shaft 402 to rotate, the protrusion 503 is driven to rotate synchronously through the spline groove 504 and the spline teeth 505, the abutment plate 512 is extruded, and under the action of the spring 510, the piston 509 moves back and forth left and right, the first one-way valve 513 and the second one-way valve 514 are alternately connected, the flocculating agent in the medicine box 515 is injected into the spray pipe 501, and is uniformly sprayed from the spray hole 502 to the surface of the sewage, and the flocculating agent is mixed into the sewage by the stirring rod 407, the flocculating efficiency is improved, as the water level in the flocculation tank 1 rises, the floating block 506 pushes the protrusion 503 to move up synchronously, the protrusion 503 is separated from the abutment plate 512, and the automatic drug injection can be stopped, which is convenient to use.

[0037] It should be noted that the motor 403 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, the power supply, specific composition and principle thereof are clear to those skilled in the art, and therefore will not be described in detail.

Claims

1. A sludge reduction device, characterized by comprising: Including flocculation tank (1), pretreatment mechanism (4) and dosing mechanism (5), the pretreatment mechanism (4) is installed in the flocculation tank (1) inner chamber, for removing large particles in sewage, the pretreatment mechanism (4) includes: Filter plate (401), the filter plate (401) is installed in the flocculation tank (1) inner chamber, for filtering large particles in sewage; Rotating shaft (402), the rotating shaft (402) is rotatably installed in the flocculation tank (1) inner chamber, the rotating shaft (402) symmetry is installed with stirring rod (407) on the side wall; The dosing mechanism (5) is installed in the flocculation tank (1) inner chamber, for filling flocculating agent, the dosing mechanism (5) includes spout (501) and spray hole (502), the spout (501) is installed at the bottom of filter plate (401), a plurality of spray holes (502) are formed in the surface of spout (501).

2. The sludge reduction device according to claim 1, characterized in that The surface of the flocculation tank (1) is provided with a water inlet pipe (2) for introducing sewage, and a discharge pipe (3) is installed at the bottom of the flocculation tank (1) for discharging materials.

3. The sludge reduction device according to claim 1, wherein The surface of the flocculation tank (1) is fixedly provided with a motor (403), and one end of the output shaft of the motor (403) is fixedly connected with the rotating shaft (402) for driving the stirring rod (407) to rotate and mixing the flocculating agent and the sewage.

4. The sludge reduction device according to claim 1, wherein The surface of the rotating shaft (402) is symmetrically provided with an arc-shaped scraper (404), which is in contact with the surface of the filter plate (401) for scraping off large particle impurities on the surface of the filter plate (401).

5. The sludge reduction device according to claim 4, wherein The side wall of the flocculation tank (1) is provided with a discharge chute (405) for discharging large particle impurities, and a discharge plate (406) is fixedly installed on the side wall of the flocculation tank (1).

6. The sludge reduction device according to claim 1, wherein The surface of the rotating shaft (402) is slidably provided with a protrusion (503), the inner cavity of the protrusion (503) is provided with a spline groove (504), the surface of the rotating shaft (402) is fixedly provided with a spline tooth (505), the spline tooth (505) is engaged with the spline groove (504), the bottom of the protrusion (503) is fixedly provided with a floating block (506), and the surface of the rotating shaft (402) is fixedly provided with a limiting ring (507) for limiting the floating block (506).

7. The sludge reduction device according to claim 6, characterized in that The inner cavity of the flocculation tank (1) is fixedly provided with a medicine injection tank (508), the inner cavity of the medicine injection tank (508) is slidably provided with a piston (509), the inner cavity of the medicine injection tank (508) is fixedly provided with a spring (510), one end of the spring (510) is fixedly connected with the medicine injection tank (508), the other end of the spring (510) is fixedly connected with the piston (509), for driving the piston (509) to move towards the protrusion (503), the side wall of the piston (509) is fixedly provided with a connecting rod (511), one end of the connecting rod (511) is fixedly provided with an abutting plate (512), and the abutting plate (512) is in contact with the protrusion (503).

8. The sludge reduction device according to claim 7, characterized in that The first one-way valve (513) and the second one-way valve (514) are installed on the sidewall of the medicine injection tank (508), the medicine tank (515) is installed on the sidewall of the flocculation tank (1) and used for storing flocculants, and the water pipe is connected between the first one-way valve (513) and the spray pipe (501), and the water pipe is connected between the second one-way valve (514) and the medicine tank (515).

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