Recyclable municipal sludge treatment device

Abstract

The utility model relates to the technical field of sludge treatment, and discloses a recyclable municipal sludge treatment device which comprises a reaction tank, a stirring mechanism is arranged in the reaction tank, a support frame is arranged below the reaction tank, an outer barrel is arranged at the bottom of the support frame, a centrifugal barrel is rotationally arranged in the outer barrel, and the centrifugal barrel is arranged in the reaction tank. A rotating shaft is rotationally arranged in the centrifugal barrel, a spiral conveying blade is arranged on the surface of the rotating shaft, a driving mechanism for driving the centrifugal barrel to rotate is arranged at one end of the centrifugal barrel, and a rotating mechanism for driving the rotating shaft to rotate is arranged at the other end of the centrifugal barrel; according to the utility model, sludge and a flocculating agent can be fully fused to react through the arranged stirring mechanism, so that the sludge is pretreated; the driving mechanism is arranged to drive the centrifugal barrel to rotate, the sludge is subjected to secondary separation under the action of centrifugal force, the arranged rotating mechanism drives the spiral conveying blade to rotate, and separated solids are conveyed to the discharging opening to be discharged.

Description

Technical Field

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

[0002] At present, sludge is considered to be the most promising land use disposal method due to its advantages of low investment, low energy consumption, low operating costs, and the organic part can be converted into soil conditioner components, which can reduce the negative effects of sludge. The sludge generated by urban sewage treatment plants is concentrated for aerobic composting and processed into farmland fertilizer and garden cultivation soil after appropriate processing, realizing the organic combination of sludge stabilization, reduction, harmlessness and resource utilization.

[0003] After searching, a sludge treatment device disclosed in the application number 201721054191.5 belongs to the field of sludge treatment technology. A sludge treatment device includes a sludge centrifuge and a water collecting shell provided with a sludge inlet and a sludge outlet; the sludge centrifuge is a horizontal drum driven by a motor, a plurality of drainage holes are provided on the side wall of the drum, a water-permeable membrane is covered on the outer side of the drum, and a stirring plate at an angle to the axis is provided inside the sludge centrifuge; the sludge centrifuge is arranged inside the water collecting shell, and drainage holes are provided at the lower end of the water collecting shell. The horizontal drum arrangement of the sludge centrifuge of the utility model can ensure more uniform and sufficient dehydration of the sludge, so as to reduce the volume of the sludge and realize the dehydration and concentration of the sludge. The utility model can ensure the efficiency and quality of work. The utility model has a simple structure, high dehydration and concentration efficiency of the sludge, thorough dehydration, stable operation, and good comprehensive performance.

[0004] However, the above method still has the following defects in actual use: the sludge is not pre-filtered and dehydrated, which will result in a high moisture content in the sludge during centrifugal dehydration, resulting in incomplete dehydration and inconvenient removal of the dehydrated and separated solids. Utility Model Content

[0005] The utility model aims to provide a circulatory urban sludge treatment device, which has the effect of performing multi-layer filtration and separation on the sludge and making the sludge dehydration more thorough.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a recyclable urban sludge treatment device, including a reaction tank, a stirring mechanism is provided inside the reaction tank, a support frame is provided below the reaction tank, an outer barrel is provided at the bottom of the support frame, a centrifugal cylinder is rotatably provided inside the outer barrel, a separation hole is provided on the surface of the centrifugal cylinder, a rotating shaft is rotatably provided inside the centrifugal cylinder, a spiral conveying blade is provided on the surface of the rotating shaft, a driving mechanism for driving the centrifugal cylinder to rotate is provided at one end of the centrifugal cylinder, and a rotating mechanism for driving the rotating shaft to rotate is provided at the other end of the centrifugal cylinder.

[0007] The utility model is further configured as follows: a tank cover is provided at the top of the reaction tank, a liquid inlet pipe communicating with the reaction tank is provided at one side of the reaction tank, and a drug adding pipe communicating with the reaction tank is provided at the other side of the reaction tank.

[0008] The utility model is further configured as follows: the bottom of the reaction tank is configured to be conical, a mud outlet pipe is provided at the bottom end of the reaction tank, a liquid outlet pipe 1 is provided at the bottom of one side of the reaction tank, control valves are provided on the surfaces of the mud outlet pipe and the liquid outlet pipe 1, and a detachable filter screen is provided at one end of the liquid outlet pipe 1.

[0009] The utility model is further configured as follows: the stirring mechanism includes a stirring shaft, the stirring shaft is arranged inside the reaction tank and is rotatably connected to the middle part of the tank cover, a driven gear 1 is arranged at the top end of the stirring shaft, a plurality of stirring rods are arranged on the surface of the stirring shaft, a motor frame 1 is arranged at the top end of the tank cover, a motor 1 is arranged at the top end of the motor frame 1, a transmission shaft of the motor 1 passes through the top end of the motor frame 1 and is installed with a driving gear 1, and the driving gear 1 is meshedly connected with the driven gear 1.

[0010] The utility model is further configured as follows: a support column is provided at the bottom end of the reaction tank, four support columns are provided, and the support frame is provided between the four support columns.

[0011] The utility model is further configured as follows: both ends of the centrifugal cylinder are configured to be conical, the feed end of the centrifugal cylinder is connected to a connecting pipe via a connecting bearing, one end of the connecting pipe is connected to one end of a mud discharge pipe via a connecting plate, the discharge end of the centrifugal cylinder is provided with a discharge port, the bottom end of the outer barrel is provided with a second liquid discharge pipe, and the second liquid discharge pipe passes through the bottom end of the support frame.

[0012] The utility model is further configured as follows: the driving mechanism includes a second motor, the second motor is arranged on one side of a second motor frame, the second motor frame is arranged on one side of a support frame, a transmission shaft of the second motor passes through the side wall of the second motor frame and is connected with a second driving gear, one end of the centrifugal cylinder is provided with a second driven gear, and the second driving gear is meshedly connected with the second driven gear.

[0013] The utility model is further configured as follows: the rotating mechanism includes a motor three, the motor three is arranged on one side of a motor frame three, the motor frame three is arranged on the other side of a support frame, a transmission shaft of the motor three passes through the side wall of the motor frame three and is connected with a driving gear three, one end of the rotating shaft is provided with a driven gear three, and the driving gear three is meshedly connected with the driven gear three.

[0014] In summary, the utility model has the following beneficial effects: the utility model can fully fuse the sludge and the flocculant to react through the stirring mechanism provided, and the impurity particles in the water first lose stability under the action of the flocculant, and then agglomerate into larger particles, which settle to the bottom of the reaction tank under the action of gravity; and then drive the centrifuge cylinder to rotate by the driving mechanism, and the sludge is subjected to secondary solid-liquid separation under the action of centrifugal force, and the rotating mechanism drives the spiral conveying blades to rotate, and the separated solids are conveyed to the discharge port for discharge, thereby separating the sludge into solids and liquids and achieving recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure inside the reaction tank of the utility model;

[0017] Figure 3 This is one of the structural schematic diagrams of the centrifugal cylinder of the utility model;

[0018] Figure 4 This is the second structural schematic diagram of the centrifugal cylinder of the utility model.

[0019] In the figure: 1. reaction tank; 101. tank cover; 102. liquid inlet pipe; 103. dosing pipe; 104. liquid outlet pipe 1; 105. mud outlet pipe; 106. support column; 2. stirring mechanism; 201. motor frame 1; 202. motor 1; 203. driving gear 1; 204. stirring shaft; 205. driven gear 1; 206. stirring rod; 3. support frame; 4. outer barrel; 401. liquid outlet pipe 2; 5. centrifugal cylinder; 501. connecting pipe; 502. connecting bearing; 503. discharge port; 6. rotating shaft; 7. spiral conveying blade; 8. driving mechanism; 801. motor 2; 802. driving gear 2; 803. driven gear 2; 9. rotating mechanism; 901. motor 3; 902. driving gear 3; 903. driven gear 3. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 4In the embodiment of the utility model, a recyclable urban sludge treatment device includes a reaction tank 1, a stirring mechanism 2 is provided inside the reaction tank 1, the sludge and flocculant in the reaction tank 1 are stirred to make them fully fused and reacted, and the sludge is preliminarily separated. A support frame 3 is provided below the reaction tank 1, an outer barrel 4 is provided at the bottom of the support frame 3, a centrifugal cylinder 5 is provided inside the outer barrel 4 for rotation, and a separation hole is provided on the surface of the centrifugal cylinder 5, a rotating shaft 6 is provided inside the centrifugal cylinder 5 for rotation, and a spiral conveying blade 7 is provided on the surface of the rotating shaft 6, and a driving mechanism 8 for driving the centrifugal cylinder 5 to rotate is provided at one end of the centrifugal cylinder 5. The centrifugal cylinder 5 runs at a high speed, and secondary separation is achieved under the action of centrifugal force. A rotating mechanism 9 for driving the rotating shaft 6 to rotate is provided at the other end of the centrifugal cylinder 5, and the spiral conveying blade 7 rotates to facilitate the separated solid to be transported to the discharge port 503 for discharge;

[0022] In this embodiment, preferably, a tank cover 101 is provided at the top of the reaction tank 1, a liquid inlet pipe 102 communicating with the reaction tank 1 is provided on one side of the reaction tank 1, so as to facilitate injecting sludge into the reaction tank 1 from the liquid inlet pipe 102, and a dosing pipe 103 communicating with the reaction tank 1 is provided on the other side of the reaction tank 1, so as to facilitate injecting flocculant into the reaction tank 1 to react with the sludge, and the separated solid is precipitated at the bottom of the reaction tank 1;

[0023] In this embodiment, preferably, the bottom of the reaction tank 1 is set to be conical, the bottom end of the reaction tank 1 is provided with a mud outlet pipe 105, and the bottom of one side of the reaction tank 1 is provided with a liquid outlet pipe 104. The surfaces of the mud outlet pipe 105 and the liquid outlet pipe 104 are both provided with control valves. One end of the liquid outlet pipe 104 is connected with a detachable filter screen by bolts, so as to facilitate re-filtering of the pre-separated liquid, and the filtered liquid is discharged from the liquid outlet pipe 104;

[0024] In this embodiment, preferably, the stirring mechanism 2 includes a stirring shaft 204, the stirring shaft 204 is arranged inside the reaction tank 1, and is rotatably connected to the middle part of the tank cover 101, the top of the stirring shaft 204 is provided with a driven gear 205, the surface of the stirring shaft 204 is provided with a plurality of stirring rods 206, the top of the tank cover 101 is provided with a motor frame 201, the top of the motor frame 201 is provided with a motor 202, the transmission shaft of the motor 202 passes through the top of the motor frame 201 and is installed with a driving gear 203, and the driving gear 203 is connected with the driven gear 205. The driving gear 205 is meshed and connected, and the transmission shaft of the motor 202 drives the driving gear 203 to rotate. Since the driving gear 203 is meshed and connected with the driven gear 205, the driving gear 203 drives the driven gear 205 to rotate, thereby driving the stirring shaft 204 and the stirring rod 206 to rotate, so that the sludge in the reaction tank 1 and the flocculant are fully fused and reacted. The impurity particles in the water first lose stability under the action of the flocculant, and then coagulate into larger particles, which are precipitated to the bottom of the reaction tank 1 under the action of gravity;

[0025] In this embodiment, preferably, a support column 106 is provided at the bottom end of the reaction tank 1, and four support columns 106 are provided. The support frame 3 is provided between the four support columns 106 to support the outer barrel 4;

[0026] In this embodiment, preferably, both ends of the centrifugal cylinder 5 are configured to be conical, and the feed end of the centrifugal cylinder 5 is connected to a connecting pipe 501 through a connecting bearing 502, so that when the sludge is injected into the centrifugal cylinder 5, the rotation of the centrifugal cylinder 5 is not hindered, and the other end of the connecting pipe 501 is connected to one end of the mud discharge pipe 105 through a connecting plate, and the discharge end of the centrifugal cylinder 5 is provided with a discharge port 503, which is convenient for the discharge of separated solids, and the bottom end of the outer barrel 4 is provided with a second liquid discharge pipe 401, and the second liquid discharge pipe 401 runs through the bottom end of the support frame 3, which is convenient for the discharge of separated liquid;

[0027] In this embodiment, preferably, the driving mechanism 8 includes a second motor 801, which is arranged on one side of the second motor frame, and the second motor frame is arranged on one side of the support frame 3. The transmission shaft of the second motor 801 passes through the side wall of the second motor frame and is connected with a second driving gear 802. One end of the centrifugal cylinder 5 is provided with a second driven gear 803, and the second driving gear 802 is meshed and connected with the second driven gear 803. The transmission shaft of the second motor 801 drives the second driving gear 802 to rotate. Since the second driving gear 802 is meshed and connected with the second driven gear 803, the second driving gear 802 drives the second driven gear 803 to rotate, thereby driving the centrifugal cylinder 5 to rotate. Under the action of centrifugal force, the sludge is separated into solid and liquid, and the separated liquid is discharged through the second liquid outlet pipe 401;

[0028] In this embodiment, preferably, the rotating mechanism 9 includes a motor 3 901, which is arranged on one side of the motor frame 3, and the motor frame 3 is arranged on the other side of the support frame 3. The transmission shaft of the motor 3 901 passes through the side wall of the motor frame 3 and is connected with a driving gear 3 902. A driven gear 3 903 is provided at one end of the rotating shaft 6, and the driving gear 3 902 is meshedly connected with the driven gear 3 903. The transmission shaft of the motor 3 901 drives the driving gear 3 902 to rotate. Since the driving gear 3 902 is meshedly connected with the driven gear 3 903, the driving gear 3 902 drives the driven gear 3 903 to rotate, thereby driving the rotating shaft 6 and the spiral conveying blade 7 on its surface to rotate, so as to facilitate the separated sludge to be transported to the discharge port 503 for discharge.

[0029] When in use, firstly, the sludge is injected into the reaction tank 1 through the liquid inlet pipe 102, and at the same time, the flocculant is injected into the reaction tank 1 through the dosing pipe 103, and the motor 202 is started. The transmission shaft of the motor 202 drives the driving gear 203 to rotate. Since the driving gear 203 is meshed and connected with the driven gear 205, the driving gear 203 drives the driven gear 205 to rotate, thereby driving the stirring shaft 204 and the stirring rod 206 to rotate, so that the sludge in the reaction tank 1 and the flocculant are fully fused and reacted. The impurity particles in the water first lose stability under the action of the flocculant, and then coagulate into larger particles. Under the action of gravity, they settle to the bottom of the reaction tank 1. The separated water is filtered again through the filter screen and then discharged through the liquid outlet pipe 104 for recycling.

[0030] The precipitated sludge flows into the centrifugal cylinder 5 through the mud discharge pipe 105 and the connecting pipe 501, and the motor 2 801 and the motor 3 901 are started at the same time. The transmission shaft of the motor 2 801 drives the driving gear 2 802 to rotate. Since the driving gear 2 802 is meshed and connected with the driven gear 2 803, the driving gear 2 802 drives the driven gear 2 803 to rotate, thereby driving the centrifugal cylinder 5 to rotate. Under the action of centrifugal force, the sludge is separated from the solid and liquid, and the separated liquid is discharged through the separation holes on the surface of the centrifugal cylinder 5 and discharged to the outside through the liquid discharge pipe 2 401 for recycling. The transmission shaft of the motor 3 901 drives the driving gear 3 902 to rotate. Since the driving gear 3 902 is meshed and connected with the driven gear 3 903, the driving gear 3 902 drives the driven gear 3 903 to rotate, thereby driving the rotating shaft 6 and the spiral conveying blades 7 on its surface to rotate, so as to facilitate the separated sludge to be transported to the discharge port 503 for discharge.

[0031] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A recyclable urban sludge treatment device, comprising a reaction tank (1), characterized in that: The reaction tank (1) is provided with a stirring mechanism (2) inside, a support frame (3) is provided below the reaction tank (1), an outer barrel (4) is provided at the bottom of the support frame (3), a centrifugal cylinder (5) is rotatably provided inside the outer barrel (4), a separation hole is provided on the surface of the centrifugal cylinder (5), a rotating shaft (6) is rotatably provided inside the centrifugal cylinder (5), a spiral conveying blade (7) is provided on the surface of the rotating shaft (6), a driving mechanism (8) for driving the centrifugal cylinder (5) to rotate is provided at one end of the centrifugal cylinder (5), and a rotating mechanism (9) for driving the rotating shaft (6) to rotate is provided at the other end of the centrifugal cylinder (5).

2. The recyclable urban sludge treatment device according to claim 1 is characterized in that: The top of the reaction tank (1) is provided with a tank cover (101), one side of the reaction tank (1) is provided with a liquid inlet pipe (102) communicating with the reaction tank (1), and the other side of the reaction tank (1) is provided with a drug addition pipe (103) communicating with the reaction tank (1).

3. The recyclable urban sludge treatment device according to claim 1 is characterized in that: The bottom of the reaction tank (1) is arranged in a cone shape, a mud outlet pipe (105) is arranged at the bottom end of the reaction tank (1), a liquid outlet pipe (104) is arranged at the bottom of one side of the reaction tank (1), control valves are arranged on the surfaces of the mud outlet pipe (105) and the liquid outlet pipe (104), and a detachable filter screen is arranged at one end of the liquid outlet pipe (104).

4. The recyclable urban sludge treatment device according to claim 2 is characterized in that: The stirring mechanism (2) comprises a stirring shaft (204), the stirring shaft (204) being arranged inside the reaction tank (1) and being rotatably connected to the middle part of the tank cover (101), a driven gear (205) being arranged at the top end of the stirring shaft (204), a plurality of stirring rods (206) being arranged on the surface of the stirring shaft (204), a motor frame (201) being arranged at the top end of the tank cover (101), a motor (202) being arranged at the top end of the motor frame (201), a transmission shaft of the motor (202) penetrating the top end of the motor frame (201) and being provided with a driving gear (203), and the driving gear (203) being meshingly connected with the driven gear (205).

5. The recyclable urban sludge treatment device according to claim 1 is characterized in that: A support column (106) is provided at the bottom end of the reaction tank (1), four support columns (106) are provided, and the support frame (3) is provided between the four support columns (106).

6. The recyclable urban sludge treatment device according to claim 3 is characterized in that: Both ends of the centrifugal cylinder (5) are arranged in a conical shape; the feed end of the centrifugal cylinder (5) is connected to a connecting pipe (501) via a connecting bearing (502); one end of the connecting pipe (501) is connected to one end of a mud discharge pipe (105) via a connecting plate; the discharge end of the centrifugal cylinder (5) is provided with a discharge port (503); the bottom end of the outer barrel (4) is provided with a second liquid discharge pipe (401), and the second liquid discharge pipe (401) passes through the bottom end of the support frame (3).

7. The recyclable urban sludge treatment device according to claim 1 is characterized in that: The driving mechanism (8) comprises a second motor (801), wherein the second motor (801) is arranged on one side of a second motor frame, and the second motor frame is arranged on one side of a support frame (3), wherein a transmission shaft of the second motor (801) passes through a side wall of the second motor frame and is connected to a second driving gear (802), and a second driven gear (803) is provided at one end of the centrifugal cylinder (5), and the second driving gear (802) is meshedly connected with the second driven gear (803).

8. The recyclable urban sludge treatment device according to claim 1 is characterized in that: The rotating mechanism (9) comprises a motor three (901), wherein the motor three (901) is arranged on one side of a motor frame three, and the motor frame three is arranged on the other side of a support frame (3), wherein a transmission shaft of the motor three (901) passes through a side wall of the motor frame three and is connected to a driving gear three (902), and a driven gear three (903) is arranged at one end of the rotating shaft (6), and the driving gear three (902) is meshedly connected with the driven gear three (903).

Images