Pretreatment device for treating garbage penetrating fluid through DTRO

Abstract

The utility model discloses a pretreatment device for treating garbage penetrating fluid by DTRO (Disk Tubular Reverse Osmosis), which comprises a pretreatment tank, a top cover plate integrally welded on the pretreatment tank and a pretreatment mechanism positioned on the top cover plate, a discharge pipe is fixedly connected to the bottom of the pretreatment tank, a feeding pipe is fixedly connected to one side of the top wall of the top cover plate, and a discharge pipe is fixedly connected to the other side of the top wall of the top cover plate. A filter screen is fixed under the feeding pipe, strip-shaped plates are welded to the positions, located on the two sides of the filter screen, of the bottom wall of the top cover plate, and inner cavities of the two strip-shaped plates are formed in the bottom wall of the top cover plate. The pretreatment mechanism comprises a servo motor installed on the outer wall of one strip-shaped plate, a screw rod and a sliding rod which are located in inner cavities of the two strip-shaped plates respectively, and a scraper located above the filter screen, an output shaft of the servo motor is coaxially connected with the screw rod, and the two ends of the sliding rod are welded to the strip-shaped plates. According to the pretreatment device for treating the garbage penetrating fluid through the DTRO, generated impurities do not need to be manually fished out of the pretreatment tank and are automatically discharged, and the workload of personnel is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage leachate treatment, in particular to a DTRO pretreatment device for treating garbage leachate. Background Art

[0002] DTRO (butterfly tube reverse osmosis) membrane treatment technology is an anti-pollution reverse osmosis technology suitable for high-concentration liquid treatment. It has the characteristics of low inlet water quality requirements, good produced water quality, high recovery rate and stable operation. DTRO membrane treatment technology is often used to treat garbage leachate (high-concentration organic wastewater generated during landfill or incineration).

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: before using the DTRO membrane treatment technology to treat the garbage leachate, the garbage leachate needs to be pretreated so that as many impurities therein (solid impurities or impurities in other forms that are easy to separate) can be discharged as much as possible in the simplest way; and the current pretreatment device usually requires manual use of tools to reach into the device to scoop out the impurities after separating them, which makes the operation very troublesome and wastes manpower.

[0004] Therefore, we propose a DTRO pretreatment device for treating garbage leachate to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a DTRO pretreatment device for treating garbage leachate. The generated impurities do not need to be manually scooped out from the pretreatment tank, but are automatically discharged, which reduces the workload of personnel and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A DTRO pretreatment device for treating garbage leachate comprises a pretreatment tank, a top cover plate integrally welded to the pretreatment tank, and a pretreatment mechanism located on the top cover plate, a discharge pipe is fixedly connected to the bottom of the pretreatment tank, a feeding pipe is fixedly connected to one side of the top wall of the top cover plate, a filter screen is fixed directly below the feeding pipe, strip plates are welded to both sides of the bottom wall of the top cover plate on the filter screen, and the inner cavities of the two strip plates are formed on the bottom wall thereof;

[0008] The pretreatment mechanism includes a servo motor installed on the outer wall of one of the strip plates, a screw and a slide rod respectively located in the inner cavities of the two strip plates, and a scraper located above the filter screen. The output shaft of the servo motor is coaxially connected to the screw, and both ends of the slide rod are welded to the strip plates. One end of the scraper is threadedly sleeved on the screw, and the other end is slidably sleeved on the slide rod, and the scraper is in contact with the top wall of the filter screen.

[0009] An inclined discharge pipe for discharging solid impurities is fixedly connected to the side of the pretreatment tank where the filter is located, and a main drive motor is fixedly installed at the center of the top wall of the top cover plate. The output shaft of the main drive motor is coaxially connected to an inner support shaft, and a plurality of blades for stirring the garbage leachate and flocculant are installed on the inner support shaft.

[0010] As a preferred embodiment, L-shaped first supports are welded to both opposite side walls of the filter, and both first supports are welded to the bottom wall of the top cover plate, so that the filter structure is stable and remains horizontal.

[0011] As a preferred embodiment, the screw rod and the sliding rod are both arranged horizontally, wherein both ends of the screw rod are rotatably connected to the strip plate; so that the screw rod can operate stably under the drive of the servo motor, and the servo motor and the main drive motor need to be powered by external power facilities.

[0012] As a preferred embodiment, the inner support shaft and the multiple groups of blades are located in the inner cavity of the pretreatment tank, and the top of the inner support shaft is rotatably connected to the top cover plate; the multiple groups of blades are evenly spaced in the vertical direction.

[0013] As a preferred embodiment, a stabilizing plate is welded at the bottom of the inner cavity of the pretreatment tank, and the bottom of the inner support shaft is rotatably connected to the stabilizing plate, so that the inner support shaft can drive multiple groups of blades to operate stably.

[0014] As a preferred embodiment, an interception net is provided below the discharge pipe, wherein L-shaped second supports are welded to the opposite side walls of the interception net, and the two second supports are welded to the bottom wall of the pretreatment tank; thereby facilitating another filtration of the sewage discharged from the discharge pipe through the interception net.

[0015] In summary, the technical effects and advantages of the utility model are as follows:

[0016] The DTRO pretreatment device for treating garbage leachate first filters solid impurities in the garbage leachate, then drives the servo motor to drive the scraper to automatically scrape the solid impurities on the filter screen and discharge them from the pretreatment tank, without the need for manual use of tools to remove the solid impurities; then, after adding the flocculant, the main drive motor is operated to quickly complete the sedimentation treatment of the garbage leachate, further reducing the impurity content in the garbage leachate, making subsequent treatment more convenient, and at the same time, the impurities generated in the above two steps do not need to be manually removed from the pretreatment tank, but are automatically discharged, reducing the workload of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial vertical cross-sectional view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the pretreatment mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the top cover plate of the utility model.

[0021] In the figure: 1. pretreatment tank; 2. top cover plate; 3. feeding pipe; 4. filter screen; 5. first support; 6. strip plate; 7. servo motor; 8. screw; 9. slide bar; 10. scraper; 11. inclined discharge pipe; 12. main drive motor; 13. inner support shaft; 14. blades; 15. discharge pipe; 16. interception net; 17. second support; 18. stabilizing plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 A DTRO pretreatment device for treating garbage leachate comprises a pretreatment tank 1, a top cover plate 2 integrally welded to the pretreatment tank 1, and a pretreatment mechanism located on the top cover plate 2. A discharge pipe 15 is fixedly connected to the bottom of the pretreatment tank 1, a valve is installed on the discharge pipe 15, and an interception net 16 is arranged below the discharge pipe 15, wherein L-shaped second supports 17 are welded to the opposite side walls of the interception net 16, and the two second supports 17 are welded to the bottom wall of the pretreatment tank 1, so as to facilitate The sewage discharged from the discharge pipe 15 is re-filtered through the interception net 16. A feeding pipe 3 is fixedly connected to one side of the top wall of the top cover plate 2, wherein a filter screen 4 is fixed directly below the feeding pipe 3. L-shaped first supports 5 are welded to the two opposite side walls of the filter screen 4, and the two first supports 5 are welded to the bottom wall of the top cover plate 2, so that the filter screen 4 has a stable structure and remains horizontal. Strip plates 6 are welded to the bottom wall of the top cover plate 2 on both sides of the filter screen 4, and the inner cavities of the two strip plates 6 are formed on the bottom wall thereof;

[0024] The pretreatment mechanism includes a servo motor 7 installed on the outer wall of one of the strip plates 6, a screw 8 and a slide bar 9 respectively located in the inner cavities of the two strip plates 6, and a scraper 10 located above the filter screen 4. The output shaft of the servo motor 7 is coaxially connected to the screw 8, and both ends of the slide bar 9 are welded to the strip plates 6. The screw 8 and the slide bar 9 are both horizontally arranged, wherein both ends of the screw 8 are rotatably connected to the strip plates 6, so that the screw 8 can operate stably under the drive of the servo motor 7. One end of the scraper 10 is threadedly sleeved on the screw 8, and the other end is slidably sleeved on the slide bar 9, and the scraper 10 is in contact with the top wall of the filter screen 4;

[0025] An inclined discharge pipe 11 for discharging solid impurities is fixedly connected to the side of the pretreatment tank 1 where the filter screen 4 is located, and a main drive motor 12 is fixedly installed at the center of the top wall of the top cover plate 2. The servo motor 7 and the main drive motor 12 need to be powered by external power facilities. The output shaft of the main drive motor 12 is coaxially connected to an inner support shaft 13, and a plurality of groups of blades 14 for stirring the garbage leachate and flocculant are installed on the inner support shaft 13. The inner support shaft 13 and the plurality of groups of blades 14 are both located in the inner cavity of the pretreatment tank 1, and the top of the inner support shaft 13 is rotatably connected to the top cover plate 2, and the plurality of groups of blades 14 are evenly spaced along the vertical direction. A stabilizing plate 18 is welded to the bottom of the inner cavity of the pretreatment tank 1, and the bottom of the inner support shaft 13 is rotatably connected to the stabilizing plate 18, so that the inner support shaft 13 can drive the plurality of groups of blades 14 to operate stably.

[0026] The DTRO pretreatment device for treating garbage leachate is as follows: first, the scraper 10 is moved to the side of the filter screen 4 facing away from the oblique discharge pipe 11, and the garbage leachate to be pretreated is introduced into the pretreatment tank 1 from the feeding pipe 3. The garbage leachate will directly fall on the filter screen 4, and after pretreatment and filtration by the filter screen 4, the solid impurities will be filtered out, and the remaining garbage leachate will enter the inner cavity of the pretreatment tank 1. At this time, the main drive motor 12 is driven to operate to drive the inner support shaft 13 and multiple sets of blades 14 to operate, and then flocculant is added to the garbage leachate in the pretreatment tank 1 through the feeding pipe 3 (note that the flocculant should not fall on the filter screen 4, and the flocculant can be sprinkled obliquely in the inner cavity of the pretreatment tank 1 after entering the feeding pipe 3). After the garbage leachate reacts with the flocculant, some substances precipitate. At this time, the valve is opened, and the remaining sewage and the precipitate are discharged from the discharge pipe 15 together, and the precipitate falls on the interception net 16, and the sewage passes through the interception net 16; then the servo motor 7 is driven to drive the screw 8 to operate, so that the scraper 10 moves horizontally with the slide bar 9, and the scraper 10 moves from the side of the filter screen 4 facing away from the inclined discharge pipe 11 to the side close to the inclined discharge pipe 11, and finally the solid impurities on the filter screen 4 are scraped off and fall into the inclined discharge pipe 11 and are directly discharged to the outside of the pretreatment tank 1, and the precipitate on the interception net 16 is also located outside the pretreatment tank 1, so that the impurities do not need to be manually removed from the inside of the pretreatment tank 1, thereby reducing the workload of personnel.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A DTRO pretreatment device for treating garbage leachate, comprising a pretreatment tank (1), a top cover plate (2) integrally welded to the pretreatment tank (1), and a pretreatment mechanism located on the top cover plate (2), wherein a discharge pipe (15) is fixedly connected to the bottom of the pretreatment tank (1), characterized in that: A feeding pipe (3) is fixedly connected to one side of the top wall of the top cover plate (2), wherein a filter screen (4) is fixed directly below the feeding pipe (3), and strip plates (6) are welded to the bottom wall of the top cover plate (2) on both sides of the filter screen (4); The pretreatment mechanism comprises a servo motor (7) installed on the outer wall of one of the strip plates (6), a screw (8) and a slide rod (9) respectively located in the inner cavities of the two strip plates (6), and a scraper (10) located above the filter screen (4), wherein the output shaft of the servo motor (7) is coaxially connected to the screw (8), both ends of the slide rod (9) are welded to the strip plates (6), one end of the scraper (10) is threadedly sleeved on the screw (8), and the other end is slidably sleeved on the slide rod (9), and the scraper (10) is in contact with the top wall of the filter screen (4); The pretreatment tank (1) is fixedly connected to an inclined discharge pipe (11) for discharging solid impurities on the side where the filter screen (4) is located, and a main drive motor (12) is fixedly installed at the center of the top wall of the top cover plate (2), and the output shaft of the main drive motor (12) is coaxially connected to an inner support shaft (13), and a plurality of blades (14) are installed on the inner support shaft (13).

2. A DTRO pretreatment device for treating garbage leachate according to claim 1, characterized in that: The two opposite side walls of the filter screen (4) are both welded with L-shaped first supports (5), and the two first supports (5) are both welded to the bottom wall of the top cover plate (2).

3. A DTRO pretreatment device for treating garbage leachate according to claim 1, characterized in that: The screw rod (8) and the sliding rod (9) are both arranged horizontally, wherein both ends of the screw rod (8) are rotatably connected to the strip plate (6).

4. A DTRO pretreatment device for treating garbage leachate according to claim 1, characterized in that: The inner support shaft (13) and the plurality of blades (14) are both located in the inner cavity of the pretreatment tank (1), and the top of the inner support shaft (13) is rotatably connected to the top cover plate (2).

5. A DTRO pretreatment device for treating garbage leachate according to claim 4, characterized in that: A stabilizing plate (18) is welded to the bottom of the inner cavity of the pretreatment tank (1), and the bottom of the inner support shaft (13) is rotatably connected to the stabilizing plate (18).

6. A DTRO pretreatment device for treating garbage leachate according to claim 1, characterized in that: An interception net (16) is provided below the discharge pipe (15), wherein L-shaped second supports (17) are welded to opposite side walls of the interception net (16), and the two second supports (17) are both welded to the bottom wall of the pretreatment tank (1).

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