Sludge recovery device

Abstract

The utility model discloses a sludge recovery device, which relates to the technical field of sludge treatment and comprises a recovery treatment tank, one side of the recovery treatment tank is connected with a sludge recovery pipe, an agent tank is erected above the recovery treatment tank, and an agent quantitative adding mechanism is arranged between the agent tank and the recovery treatment tank. The chemical quantitative adding mechanism comprises an adding box, a weighing sensor and a conical chemical adding shell, the adding box is installed at the top of the recycling treatment tank, the weighing sensor is installed in the adding box, a bearing plate is installed at the detection end of the weighing sensor, the conical chemical adding shell is arranged on the bearing plate, and a chemical pipe is connected to the bottom of the chemical tank; the agent pipe is connected with the conical agent adding shell, the bottom of the conical agent adding shell is connected with the agent adding pipe, the agent adding pipe movably penetrates through the bearing plate to be connected with the recycling treatment tank, the agent is added while the sludge is injected, the agent can be added into the sludge in a layered mode, the mixing effect of the agent and the sludge is improved, and therefore the conversion rate of harmful substances is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge recovery device. Background Art

[0002] In the sludge recovery process, the sludge needs to be sterilized with chemicals, filtered to remove residues, and separated into solid and liquid in sequence. In the chemical sterilization and disinfection, chemicals need to be added to the sludge to treat harmful substances, such as adding hydrogen peroxide, iron oxide, potassium permanganate, etc., to convert harmful substances into harmless substances through redox reactions, thereby reducing the harmfulness of the sludge. After the chemicals are added to the sludge, the chemicals and the sludge are mixed by stirring. However, in actual production, the sludge has a large viscosity and it is difficult to produce a strong stirring intensity, resulting in a low mixing intensity between the sludge and the chemicals, which in turn leads to poor stirring effect. The chemicals and the sludge are not mixed sufficiently, resulting in a low conversion rate of harmful substances in the sludge, which affects the sludge recovery effect. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a sludge recovery device for solving the deficiencies of the prior art.

[0004] The purpose of the utility model is achieved through the following technical solutions: a sludge recovery device, comprising a recovery tank, one side of the recovery tank is connected to a sludge recovery pipe, a medicine tank is mounted above the recovery tank, a medicine quantitative addition mechanism is arranged between the medicine tank and the recovery tank, the medicine quantitative addition mechanism comprises an addition box, a weighing sensor and a conical medicine adding shell, the addition box is installed on the top of the recovery tank, the weighing sensor is installed in the addition box, a bearing plate is installed at the detection end of the weighing sensor, the conical medicine adding shell is arranged on the bearing plate, the bottom of the medicine tank is connected to a medicine pipe, the medicine pipe is connected to the conical medicine adding shell, the bottom of the conical medicine adding shell is connected to a medicine adding pipe, the medicine adding pipe movably passes through the bearing plate to connect to the recovery tank;

[0005] The recycling tank is provided with a stirring mechanism, and the sludge recovery pipe injects sludge into the recycling tank while the conical dosing shell adds medicine into the recycling tank.

[0006] Furthermore, the stirring mechanism includes a stirring shaft and a motor, the stirring shaft is rotatably connected to the recycling tank, the stirring shaft is provided with a plurality of stirring components at equal intervals along its own axial direction, the stirring components include a plurality of steel bars, and the plurality of steel bars are evenly distributed along the circumference of the stirring shaft, the motor is installed on the top of the recycling tank, and the output shaft of the motor is transmission-connected to the stirring shaft.

[0007] Furthermore, a diffusion tube is connected to the side wall of the recycling tank, one end of the diffusion tube is connected to the fan, and the other end extends into the recycling tank, and the drug dropping path of the drug adding tube is located on the blowing path of the diffusion tube.

[0008] Furthermore, a sealing plate is provided in the medicine adding tube, and the sealing plate has the freedom to move radially along the medicine adding tube.

[0009] Furthermore, the cross-sectional shape of the drug addition tube is rectangular, one end of the sealing plate slides through the telescopic shaft of the drug addition tube connecting cylinder, the cylinder body of the cylinder is installed on the addition box, and the side wall of the sealing plate contacts the inner wall of the drug addition tube.

[0010] Furthermore, it also includes a filter box and a disc filter. The bottom of the recovery tank is connected to the filter box through a sludge pipe, and the filter box is connected to the disc filter through a sludge conveying pipe. A filter mesh plate is arranged in the filter box, and the connection position between the sludge pipe and the filter box is located above the filter mesh plate.

[0011] Furthermore, a slag discharge mechanism is arranged above the filter mesh plate, and the slag discharge mechanism includes a push plate and a screw transmission mechanism, the screw transmission mechanism is installed on the top of the filter box, the screw transmission mechanism is arranged horizontally, the push plate contacts the filter mesh plate, a connecting rod is fixed on the top of the push plate, and a strip groove is opened on the top of the filter box along the moving direction of the push plate, and the connecting rod passes through the strip groove to connect the screw nut of the screw transmission mechanism.

[0012] Furthermore, a slag discharge window is provided on the side wall of the filter box, the slag discharge window is connected to a slag discharge pipe, a sliding baffle is provided in the slag discharge window, an adjusting cylinder is vertically installed on the top of the filter box, and the top of the sliding baffle slides through the top of the filter box to connect to the telescopic shaft of the adjusting cylinder.

[0013] Furthermore, the top of the filter box is open, a box cover is connected to the opening of the filter box by screws, an annular mounting platform is fixed in the filter box, and the filter screen plate is mounted on the top of the annular mounting platform by screws.

[0014] The beneficial effects of the utility model are:

[0015] A quantitative amount of reagent is first added to the conical dosing shell through a weighing sensor for standby use. When the sludge recovery pipe injects sludge into the recovery tank, the conical dosing shell simultaneously adds reagent into the recovery tank. The reagent and sludge are mixed through a stirring mechanism. The reagent is added while the sludge is injected, so that the reagent can be added to the sludge in layers. The addition area of ​​the reagent is increased, which improves the mixing effect of the reagent and the sludge, thereby improving the conversion rate of harmful substances and the recovery and treatment effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of a sludge recovery device of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a quantitative reagent adding mechanism in a sludge recovery device of the utility model;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] In the figure, 1-recovery tank, 2-sludge recovery pipe, 3-medicament tank, 4-addition box, 5-weighing sensor, 6-conical dosing shell, 7-carrying plate, 8-medicament tube, 9-medicament addition tube, 10-stirring shaft, 11-motor, 12-reinforcement bar, 13-diffuser, 14-sealing plate, 15-cylinder, 16-filter box, 17-sludge pipeline, 18-filter screen plate, 19-push plate, 20-screw transmission mechanism, 21-connecting rod, 22-strip groove, 23-slag discharge window, 24-slag discharge pipeline, 25-sliding baffle, 26-adjusting cylinder, 27-box cover, 28-annular mounting table. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] A sludge recovery device comprises a recovery tank 1, a sludge recovery pipe 2 is connected to one side of the recovery tank 1, a medicine tank 3 is arranged above the recovery tank 1, a medicine quantitative adding mechanism is arranged between the medicine tank 3 and the recovery tank 1, the medicine quantitative adding mechanism comprises an adding box 4, a weighing sensor 5 and a conical medicine adding shell 6, the adding box 4 is installed on the top of the recovery tank 1, the weighing sensor 5 is installed in the adding box 4, a bearing plate 7 is installed at the detection end of the weighing sensor 5, the conical medicine adding shell 6 is arranged on the bearing plate 7, a medicine pipe 8 is connected to the bottom of the medicine tank 3, the medicine pipe 8 is connected to the conical medicine adding shell 6, the bottom of the conical medicine adding shell 6 is connected to the medicine adding pipe 9, the medicine adding pipe 9 movably passes through the bearing plate 7 to connect to the recovery tank 1; a stirring mechanism is arranged in the recovery tank 1, the sludge recovery pipe 2 injects sludge into the recovery tank 1 while the conical medicine adding shell 6 adds medicine into the recovery tank 1, according to the sludge injected into the recovery tank 1 The amount of reagent added is set by volume, and the amount of reagent added is first quantitatively determined by the reagent quantitative adding mechanism. A valve is provided on the reagent tube 8, and the reagent is added into the conical dosing shell 6 through the reagent tube 8. At this time, the reagent adding tube 9 is in a closed state, and the added weight of the reagent is detected by the weighing sensor 5. When the amount of reagent in the conical dosing shell 6 reaches the set value, the reagent tube 8 is closed, and then the sludge recovery tube 2 injects sludge into the recovery and processing tank 1, and the conical dosing shell 6 adds reagent into the recovery and processing tank 1 at the same time, and the reagent and sludge are mixed by the stirring mechanism. The reagent is added while the sludge is injected, so that the reagent can be added to the sludge in layers, and the adding area of ​​the reagent is increased, which improves the mixing effect of the reagent and the sludge, thereby improving the conversion rate of harmful substances and improving the recovery and processing effect of the sludge. By quantitatively determining the reagent first, it is ensured that the reagent gradually added during the sludge injection process will not be excessive or insufficient, and the reagent can be quantitatively added while improving the mixing effect.

[0022] Embodiment 2

[0023] On the basis of the first embodiment, it also includes a filter box 16 and a disc filter. The bottom of the recovery tank 1 is connected to the filter box 16 through a sludge pipe 17. The filter box 16 is connected to the disc filter through a sludge conveying pipe. A filter screen plate 18 is arranged in the filter box 16. The connection position between the sludge pipe 17 and the filter box 16 is located above the filter screen plate 18. The treated sludge is discharged into the filter box 16 through the sludge pipe 17. The sludge is filtered by the filter screen plate 18 to remove large particles in the sludge. An exciter is arranged on the filter box 16 to improve the filtering efficiency. The filtered sludge is input into the disc filter through the sludge conveying pipe. The sludge is separated into solid and liquid by the disc filter, thereby completing the entire sludge recovery process. Among them, the disc filter is a mature equipment, and a disc filter of a suitable size can be rotated as required.

[0024] Embodiment 3

[0025] On the basis of the second embodiment, the stirring mechanism includes a stirring shaft 10 and a motor 11. The stirring shaft 10 is rotatably connected to the recycling tank 1. The stirring shaft 10 is provided with a plurality of stirring components at equal intervals along its own axial direction. The stirring component includes a plurality of steel bars 12. The plurality of steel bars 12 are evenly distributed along the circumference of the stirring shaft 10. The motor 11 is installed on the top of the recycling tank 1. The output shaft of the motor 11 is connected to the stirring shaft 10. The stirring shaft 10 is driven by the motor 11 to rotate. The stirring shaft 10 drives the steel bars 12 to rotate. The sludge is stirred by the steel bars 12. The action area of ​​the steel bars 12 and the sludge is small, and the sludge can be easily cut for rotary stirring. The resistance force of the sludge is greatly reduced compared with the blade type, so that the steel bars 12 are not easy to break, which prolongs the service life of the stirring component. Secondly, the setting of the steel bars 12 increases the use space of the recycling tank 1. Under the premise of adding the reagent in layers, the sludge and the reagent can be fully mixed without a strong stirring intensity, and the service life of the stirring component can be considered.

[0026] Furthermore, a diffusion tube 13 is connected to the side wall of the recovery tank 1, one end of the diffusion tube 13 is connected to the fan, and the other end extends into the recovery tank 1. The medicine dropping path of the agent adding tube 9 is located on the blowing path of the diffusion tube 13. The agent adding tube 9 is arranged close to the inner wall of one side of the recovery tank 1. The diffusion tube 13 blows the agent falling from the agent adding tube 9 to the other side of the recovery tank 1, so that the agent is diffused and dispersed and falls into the sludge, thereby further increasing the mixing contact area between the agent and the sludge and improving the mixing effect.

[0027] Embodiment 4

[0028] On the basis of the third embodiment, a sealing plate 14 is provided in the agent addition pipe 9, and the sealing plate 14 has the freedom to move radially along the agent addition pipe 9. The cross-sectional shape of the agent addition pipe 9 is rectangular. One end of the sealing plate 14 slides through the telescopic shaft of the agent addition pipe 9 connected to the cylinder 15. The cylinder body of the cylinder 15 is installed on the addition box 4. The side wall of the sealing plate 14 contacts the inner wall of the agent addition pipe 9. The sealing plate 14 is driven by the cylinder 15 to move in the horizontal direction, thereby controlling the opening and closing of the agent addition pipe 9, and can also control the opening size of the agent addition pipe 9, thereby controlling the addition rate of the agent, and conveniently adjusting the addition amount of the agent according to the injection amount of the sludge.

[0029] Embodiment 5

[0030] On the basis of the fourth embodiment, a slag discharge mechanism is arranged above the filter screen plate 18, and the slag discharge mechanism includes a push plate 19 and a screw transmission mechanism 20, the screw transmission mechanism 20 is installed on the top of the filter box 16, and the screw transmission mechanism 20 is arranged horizontally. The push plate 19 contacts the filter screen plate 18, and a connecting rod 21 is fixed on the top of the push plate 19. A strip groove 22 is opened on the top of the filter box 16 along the moving direction of the push plate 19, and the connecting rod 21 passes through the strip groove 22 to connect the screw nut of the screw transmission mechanism 20, and a slag discharge window 23 is opened on the side wall of the filter box 16. The slag discharge window 23 is connected to a slag discharge pipe 24, and a sliding baffle 25 is arranged in the slag discharge window 23. The filter box 16 An adjusting cylinder 26 is vertically installed on the top of the filter box 16, and the top of the sliding baffle 25 slides through the top of the filter box 16 to connect the telescopic shaft of the adjusting cylinder 26. Large particles are left on the filter screen plate 18, and the objects on the filter screen plate 18 are regularly discharged. During discharge, the adjusting cylinder 26 drives the sliding baffle 25 to move upward, so that the discharge window 23 is connected with the discharge pipe 24, and then the screw transmission mechanism 20 drives the push plate 19 to move close to the discharge window 23 through the connecting rod 21, and the large particles on the filter screen plate 18 are pushed into the discharge pipe 24 through the push plate 19, completing the discharge of the filter screen plate 18, so that the filter screen plate 18 can operate stably for a long time.

[0031] Furthermore, the top of the filter box 16 is open, and a box cover 27 is connected to the opening of the filter box 16 by screws. An annular mounting platform 28 is fixed in the filter box 16, and the filter screen plate 18 is mounted on the top of the annular mounting platform 28 by screws. The filter screen plate 18 will become blocked after long-term use. The filter screen plate 18 can be cleaned or replaced regularly, and the box cover 27 can be removed, and then the filter screen plate 18 can be removed from the annular mounting platform 28. The operation is simple and quick.

Claims

1. A sludge recovery device, comprising a recovery tank (1), characterized in that: A sludge recovery pipe (2) is connected to one side of the recycling tank (1); a medicine tank (3) is mounted above the recycling tank (1); a medicine quantitative addition mechanism is arranged between the medicine tank (3) and the recycling tank (1); the medicine quantitative addition mechanism comprises an addition box (4), a weighing sensor (5) and a conical medicine adding shell (6); the addition box (4) is mounted on the top of the recycling tank (1); the weighing sensor (5) is mounted in the addition box (4); a bearing plate (7) is mounted on the detection end of the weighing sensor (5); the conical medicine adding shell (6) is arranged on the bearing plate (7); a medicine pipe (8) is connected to the bottom of the medicine tank (3); the medicine pipe (8) is connected to the conical medicine adding shell (6); a medicine addition pipe (9) is connected to the bottom of the conical medicine adding shell (6); the medicine addition pipe (9) movably passes through the bearing plate (7) and is connected to the recycling tank (1); The recycling tank (1) is provided with a stirring mechanism, and the sludge recovery pipe (2) injects sludge into the recycling tank (1) while the conical dosing shell (6) adds a reagent into the recycling tank (1); It also comprises a filter box (16) and a disc filter, wherein the bottom of the recovery tank (1) is connected to the filter box (16) via a sludge pipe (17), and the filter box (16) is connected to the disc filter via a sludge conveying pipe, a filter screen (18) is arranged in the filter box (16), and the connection position between the sludge pipe (17) and the filter box (16) is located above the filter screen (18); A slag discharge mechanism is arranged above the filter screen plate (18), the slag discharge mechanism comprising a push plate (19) and a screw transmission mechanism (20), the screw transmission mechanism (20) being mounted on the top of the filter box (16), the screw transmission mechanism (20) being arranged horizontally, the push plate (19) being in contact with the filter screen plate (18), a connecting rod (21) being fixed on the top of the push plate (19), a strip groove (22) being provided on the top of the filter box (16) along the moving direction of the push plate (19), the connecting rod (21) passing through the strip groove (22) to be connected to the screw nut of the screw transmission mechanism (20).

2. A sludge recovery device according to claim 1, characterized in that: The stirring mechanism comprises a stirring shaft (10) and a motor (11); the stirring shaft (10) is rotatably connected to the recycling tank (1); the stirring shaft (10) is provided with a plurality of stirring components at equal intervals along its axial direction; the stirring components comprise a plurality of steel bars (12); the plurality of steel bars (12) are evenly distributed along the circumference of the stirring shaft (10); the motor (11) is mounted on the top of the recycling tank (1); and the output shaft of the motor (11) is drivingly connected to the stirring shaft (10).

3. A sludge recovery device according to claim 1, characterized in that: A diffusion tube (13) is connected to the side wall of the recycling tank (1), one end of the diffusion tube (13) is connected to a fan, and the other end extends into the recycling tank (1), and the medicine dropping path of the medicine adding tube (9) is located on the blowing path of the diffusion tube (13).

4. A sludge recovery device according to claim 1, characterized in that: A sealing plate (14) is arranged inside the medicine adding tube (9), and the sealing plate (14) has the freedom to move radially along the medicine adding tube (9).

5. A sludge recovery device according to claim 4, characterized in that: The cross-sectional shape of the drug addition tube (9) is rectangular, one end of the sealing plate (14) slides through the telescopic shaft of the drug addition tube (9) connected to the cylinder (15), the cylinder body of the cylinder (15) is installed on the addition box (4), and the side wall of the sealing plate (14) contacts the inner wall of the drug addition tube (9).

6. A sludge recovery device according to claim 1, characterized in that: A slag discharge window (23) is provided on the side wall of the filter box (16), the slag discharge window (23) is connected to a slag discharge pipe (24), a sliding baffle (25) is provided in the slag discharge window (23), an adjusting cylinder (26) is vertically installed on the top of the filter box (16), and the top of the sliding baffle (25) slides through the top of the filter box (16) and is connected to the telescopic shaft of the adjusting cylinder (26).

7. A sludge recovery device according to claim 6, characterized in that: The top of the filter box (16) is open, and a box cover (27) is connected to the opening of the filter box (16) by means of screws. An annular mounting platform (28) is fixed inside the filter box (16), and the filter screen plate (18) is mounted on the top of the annular mounting platform (28) by means of screws.

Images