Sludge dewatering and drying device

Abstract

The utility model relates to the technical field of environmental protection, in particular to a sludge dewatering and drying device which comprises an outer cylinder, a stirring component, a drying component, an air outlet cylinder, a cleaning component, a sludge injection cylinder, a sludge outlet hopper, a filter screen, a water collecting tank and a rack, the outer cylinder is fixedly connected with the stirring component, one end of the outer cylinder is fixedly connected with the sludge injection cylinder, and the other end of the outer cylinder is fixedly connected with the air outlet cylinder. According to the sludge drying device, sludge is cut and conveyed through the stirring component, the sludge is cut into uniform small particles, in the conveying process, the sludge is heated and dried through the drying component, the dried sludge is rapidly discharged through the stirring component, and the sludge is dried through the drying component. And after dewatering and drying are completed, the stirring component and the filter screen are brushed through the cleaning component, blockage and influence on drainage are avoided, the sludge drying efficiency is improved, the situation that sludge adheres to the wall and influences drainage is avoided, operation is easy, efficiency is high, and energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental protection technology, especially a sludge dewatering and drying device. BACKGROUND

[0002] The main pollutants in food production wastewater are solid substances floating in water, organic matter and salts dissolved in water, and mud and sand carried in raw materials. Food production wastewater is generally non-toxic, but contains a high content of organic matter, which can easily lead to water eutrophication, affecting the living space of animals in water, and water quality deterioration can produce odor, seriously affecting the ecological environment.

[0003] The sludge produced by food production wastewater contains many beneficial components and can be utilized after treatment. The general treatment method for sludge is to first perform dewatering and drying treatment, and then utilize waste. Therefore, it is urgent to design and manufacture a sludge drying device that is advanced in technology, efficient, energy-saving, and pollution-free.

[0004] At present, the Chinese utility model with application number 201120349869.9 discloses a sludge dewatering and drying device. Although the device improves dewatering efficiency by setting up a crushing blade and a heating resistor, it does not have a brushing anti-clogging device. The sludge sticking to the wall can prevent water from being discharged in time, thereby affecting the dewatering efficiency of the sludge. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the dewatering and drying efficiency of sludge is low after the sludge is formed into blocks, and the sludge sticking to the wall can prevent water from being discharged in time, thereby affecting the dewatering efficiency of the sludge.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a sludge dewatering and drying device, which comprises an outer cylinder, a stirring member, a drying member, an air outlet cylinder, a cleaning member, a sludge injection cylinder, a sludge outlet hopper, a filter screen, a water collecting tank, and a rack. The outer cylinder is fixedly connected to the stirring member. One end of the outer cylinder is fixedly connected to the sludge injection cylinder. The other end of the outer cylinder is fixedly connected to the air outlet cylinder. The air outlet cylinder is fixedly connected to the sludge outlet hopper. The top of the outer cylinder is fixedly connected to the drying member. The outer cylinder is fixedly connected to the filter screen. The filter screen is fixedly connected to the water collecting tank. The water collecting tank is fixedly connected to the rack.

[0007] The stirring member is used to increase the heating area of the sludge.

[0008] The drying member is used to increase the evaporation rate of the moisture in the sludge.

[0009] The cleaning member is used to prevent clogging and improve the drying efficiency.

[0010] As a preferred scheme of the sludge dewatering and drying device, the stirring member comprises a first motor, a screw rod and a ring piece inner cylinder, the output shaft of the first motor is rotationally connected with the screw rod, and the ring piece inner cylinder is fixedly connected with the inner wall of the outer cylinder.

[0011] As a preferred scheme of the sludge dewatering and drying device, the drying member comprises an outer shell, an electric heater and a fan, the outer shell is fixedly connected with the outer cylinder, the electric heater is fixedly connected with the outer shell, and the fan is fixedly connected with the bottom end of the outer shell.

[0012] As a preferred scheme of the sludge dewatering and drying device, the cleaning member comprises a spraying assembly, a second motor, a lead screw, a sliding rod, two groups of support frames and a rolling brush, the spraying assembly is used for cleaning the ring piece inner cylinder, the output shaft of the second motor is rotationally connected with the lead screw, the lead screw is rotationally connected with one group of support frames, the sliding rod is fixedly connected with the outer cylinder at both ends, the sliding rod is rotationally connected with the other group of support frames, and both ends of the rolling brush are rotationally connected with the support frames, respectively.

[0013] As a preferred scheme of the sludge dewatering and drying device, the spraying assembly comprises a water pump, a water tank, a water conveying pipe and a plurality of spray heads, one end of the water pump is fixedly connected with the water tank, the other end of the water pump is fixedly connected with the water conveying pipe, and the water conveying pipe is fixedly connected with the plurality of spray heads.

[0014] As a preferred scheme of the sludge dewatering and drying device, the support frame is internally provided with rolling balls matched with the lead screw.

[0015] As a preferred scheme of the sludge dewatering and drying device, the support frame is provided with a rotating groove.

[0016] As a preferred scheme of the sludge dewatering and drying device, the outer cylinder is provided with a sludge inlet and a sludge outlet at both ends, and the water collecting tank is provided with a drain.

[0017] The sludge is cut into uniform small particles by the stirring member, the sludge is heated and dried by the drying member in the transmission process, the dried sludge is quickly discharged by the stirring member, the sludge is prevented from caking, the stirring member and the filter screen are brushed by the cleaning member after dewatering and drying, the drainage is prevented from being affected by blockage, the sludge drying efficiency is improved, the sludge wall sticking is prevented from affecting the drainage, the device is simple to operate, efficient and energy-saving. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1This is a schematic diagram of the overall structure of a sludge dewatering and drying device according to an embodiment of this disclosure.

[0019] Figure 2 This is a cross-sectional view of a sludge dewatering and drying device according to an embodiment of the present disclosure.

[0020] Figure 3 This is a schematic diagram of the spray assembly structure of a sludge dewatering and drying device according to an embodiment of the present disclosure.

[0021] Figure 4 This is a schematic diagram of the drying component structure of a sludge dewatering and drying device according to an embodiment of the present disclosure.

[0022] Figure 5 This is a schematic diagram of the support frame structure of a sludge dewatering and drying device according to an embodiment of this disclosure.

[0023] Figure 6 This is a cleaning component of a sludge dewatering and drying device according to an embodiment of the present disclosure. Figure 3 Enlarged diagram of point A in the middle.

[0024] Reference numerals: Outer cylinder 1; Mud inlet 101; Mud outlet 102; Mixing component 2; First motor 21; Screw rod 22; Inner ring cylinder 23; Drying component 3; Outer shell 31; Electric heater 32; Fan 33; Air outlet 4; Cleaning component 5; Spray assembly 51; Water pump 511; Water tank 512; Water pipe 513; Nozzle 514; Second motor 52; Lead screw 53; Ball bearing 531; Slide rod 54; Support frame 55; Rotating groove 551; Roller brush 54; Mud injection cylinder 6; Mud outlet hopper 7; Filter screen 8; Water collection trough 9; Drain outlet 91; Frame 10. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Example, refer to Figures 1-6 This embodiment provides a sludge dewatering and drying device, including an outer cylinder 1, a stirring component 2, a drying component 3, an air outlet 4, a cleaning component 5, a sludge injection cylinder 6, a sludge discharge hopper 7, a filter screen 8, a water collection tank 9, and a frame 10. The outer cylinder 1 is fixedly connected to the stirring component 2, one end of the outer cylinder 1 is fixedly connected to the sludge injection cylinder 6, the other end of the outer cylinder 1 is fixedly connected to the air outlet 4, the air outlet 4 is fixedly connected to the sludge discharge hopper 7, the top of the outer cylinder 1 is fixedly connected to the drying component 3, the outer cylinder 1 is fixedly connected to the filter screen 8, the filter screen 8 is fixedly connected to the water collection tank 9, and the water collection tank 9 is fixedly connected to the frame 10.

[0027] The stirring component 2 is used to increase the heat-receiving area of ​​the sludge;

[0028] The drying member 3 is used to improve the evaporation rate of sludge moisture;

[0029] The cleaning member 5 is used to prevent blockage, thereby improving the drying efficiency.

[0030] In this embodiment, the flocculated sludge is added into the sludge injection cylinder 6, the stirring member 2 cuts and transports the sludge, the sludge is cut into uniform small particles, the drying member 3 heats and dries the sludge during the transportation process, the generated water vapor is discharged through the air outlet cylinder 4, the stirring member 2 quickly discharges the dried sludge to avoid clumping, the water generated during the drying process of the sludge is first filtered by the filter screen 8, then collected in the water collecting tank 9, and then discharged through the water outlet 91, the stirring member 2 and the filter screen 8 are brushed by the cleaning member 5 to avoid blockage and affect the drainage, this device improves the sludge drying efficiency, avoids the influence of sludge adhesion on drainage, and is simple to operate and energy-efficient.

[0031] Referring to Figures 1-3 , the stirring member 2 includes a first motor 21, a screw rod 22, and a ring piece inner cylinder 23, the output shaft of the first motor 21 is rotationally connected to the screw rod 22, and the ring piece inner cylinder 23 is fixedly connected to the inner wall of the outer cylinder 1.

[0032] In this embodiment, the output shaft of the first motor 21 is rotationally connected to the screw rod 22, the screw rod 22 cuts, stirs, and transports the sludge during rotation, and the water generated during the transportation of the sludge flows out through the gaps of the ring piece inner cylinder 23.

[0033] Referring to Figure 3 and Figure 4 , the drying member 3 includes an outer shell 31, an electric heater 32, and a fan 33, the outer shell 31 is fixedly connected to the outer cylinder 1, the electric heater 32 is fixedly connected to the outer shell 31, and the fan 33 is fixedly connected to the bottom end of the outer shell 31.

[0034] In this embodiment, the electric heater 32 generates heat, and the fan 33 blows hot air to the sludge, thereby air-drying and heating the sludge, and enhancing the evaporation rate of sludge moisture.

[0035] Referring to Figure 1 , Figure 3 and Figure 6 , the cleaning member 5 includes a spraying assembly 51, a second motor 52, a lead screw 53, a sliding rod 54, two groups of support frames 55, and a roller brush 54, the spraying assembly 51 is used to clean the ring piece inner cylinder 23, the output shaft of the second motor 52 is rotationally connected to the lead screw 53, the lead screw 53 is rotationally connected to one of the two groups of support frames 55, the sliding rod 54 is fixedly connected to the outer cylinder 1 at both ends, the sliding rod 54 is rotationally connected to the other group of support frames 55, and the two ends of the roller brush 54 are rotationally connected to the support frames 55, respectively.

[0036] The second motor 52 drives the screw rod 53 to rotate, the screw rod 53 drives the two groups of support frames 55 to move, the slide rod 54 plays a guiding role, the support frame 55 drives the roller brush 54 to move, the roller brush 54 rubs against the filter screen 8 and the ring piece inner cylinder 23 in the moving process, thereby rotating, and the filter screen 8 and the ring piece inner cylinder 23 are brushed, so that the filter screen 8 and the ring piece inner cylinder 23 are prevented from being blocked, the sludge dewatering efficiency is affected, and the spraying assembly 51 brushes the stirring member 2 through water columns.

[0037] With reference to Figure 3 The spraying assembly 51 comprises a water pump 511, a water tank 512, a water conveying pipe 513 and a plurality of spray heads 514. The water pump 511 is fixedly connected to one end of the water tank 512, and the other end of the water pump 511 is fixedly connected to the water conveying pipe 513. The water conveying pipe 513 is fixedly connected to the plurality of spray heads 514.

[0038] The water pump 511 draws water in the water tank 512 out, and the water is sprayed out from the spray heads 514 through the water conveying pipe 513, so that the filter screen 8 and the stirring member 2 are brushed.

[0039] With reference to Figure 5 The support frame 55 is internally provided with a plurality of ball bearings 531 matched with the screw rod 53.

[0040] The support frame 55 moves linearly on the screw rod 53 without rotating.

[0041] With reference to Figure 5 The support frame 55 is provided with a rotating groove 551.

[0042] The roller brush 54 rotates on the support frame 55 to brush the filter screen 8 and the ring piece inner cylinder 23.

[0043] With reference to Figure 2 The outer cylinder 1 is provided with a sludge inlet 101 and a sludge outlet 102 at two ends respectively, and the water collecting groove 9 is provided with a water outlet 91.

[0044] The sludge is discharged from the sludge outlet 102 after being dried, and the filtered sewage is discharged from the water outlet 91.

[0045] Working principle: the flocculated sludge is added to the mud injection cylinder 6, the output shaft of the first motor 21 is connected with the screw rod 22, the screw rod 22 cuts and transports the sludge in the rotating process, the sludge is cut into uniform small particles, the water generated in the transmission process of the sludge flows out through the gap of the ring inner cylinder 23, in the transmission process, the electric heater 32 generates heat, the fan 33 blows hot air to the sludge, so as to dry and heat the sludge, enhance the rate of sludge evaporation, the generated water vapor is discharged through the air outlet cylinder 4, the screw rod 22 discharges the dried sludge quickly, avoids the sludge caking, the water generated in the drying process of the sludge is first filtered by the filter screen 8, then collected in the water collecting tank 9, and then discharged through the water outlet 11, when the sludge drying and dewatering is completed and needs to be cleaned, the output shaft of the second motor 52 is started to drive the screw rod 53 to rotate, the screw rod 53 drives two groups of support frames 55 to move, the slide rod 54 plays a guiding role, the support frame 55 drives the roller brush 54 to move, the roller brush 54 rotates in the moving process and generates friction with the filter screen 8 and the ring inner cylinder 23, so as to rotate, brush and clean the filter screen 8 and the ring inner cylinder 23, prevent the filter screen 8 and the ring inner cylinder 23 from being blocked, affect the sludge dewatering efficiency, the spraying assembly 51 brushes and cleans the stirring member 2 through water column, the device improves the sludge drying efficiency, avoids the sludge sticking to the wall and affecting the drainage, is simple to operate, efficient and energy-saving.

Claims

1. A sludge dewatering and drying device, characterized in that: The assembly includes an outer cylinder (1), a stirring component (2), a drying component (3), an air outlet (4), a cleaning component (5), a mud injection cylinder (6), a mud discharge hopper (7), a filter screen (8), a water collection tank (9), and a frame (10). The outer cylinder (1) is fixedly connected to the stirring component (2). One end of the outer cylinder (1) is fixedly connected to the mud injection cylinder (6). The other end of the outer cylinder (1) is fixedly connected to the air outlet cylinder (4). The air outlet cylinder (4) is fixedly connected to the mud discharge hopper (7). The top of the outer cylinder (1) is fixedly connected to the drying component (3). The outer cylinder (1) is fixedly connected to the filter screen (8). The filter screen (8) is fixedly connected to the water collection tank (9). The water collection tank (9) is fixedly connected to the frame (10). The stirring component (2) is used to increase the heating area of ​​the sludge; The drying component (3) is used to increase the evaporation rate of sludge moisture; The cleaning component (5) is used to prevent clogging, thereby improving drying efficiency.

2. The sludge dewatering and drying device as described in claim 1, characterized in that: The stirring component (2) includes a first motor (21), a screw rod (22) and an annular inner cylinder (23). The output shaft of the first motor (21) is rotatably connected to the screw rod (22), and the annular inner cylinder (23) is fixedly connected to the inner wall of the outer cylinder (1).

3. The sludge dewatering and drying device as described in claim 1, characterized in that: The drying component (3) includes a shell (31), an electric heater (32) and a fan (33). The shell (31) is fixedly connected to the outer cylinder (1), the electric heater (32) is fixedly connected to the shell (31), and the fan (33) is fixedly connected to the bottom end of the shell (31).

4. The sludge dewatering and drying device as described in claim 1, characterized in that: The cleaning component (5) includes a spray assembly (51), a second motor (52), a lead screw (53), a slide bar (54), two sets of support frames (55), and a roller brush (54). The spray assembly (51) is used to clean the inner cylinder (23) of the ring plate. The output shaft of the second motor (52) is rotatably connected to the lead screw (53). The lead screw (53) is rotatably connected to one set of support frames (55). The two ends of the slide bar (54) are fixedly connected to the outer cylinder (1). The slide bar (54) is rotatably connected to the other set of support frames (55). The two ends of the roller brush (54) are rotatably connected to the support frames (55).

5. The sludge dewatering and drying device as described in claim 4, characterized in that: The spray assembly (51) includes a water pump (511), a water tank (512), a water supply pipe (513), and spray nozzles (514). One end of the water pump (511) is fixedly connected to the water tank (512), and the other end of the water pump (511) is fixedly connected to the water supply pipe (513). The water supply pipe (513) is fixedly connected to several spray nozzles (514).

6. The sludge dewatering and drying device as described in claim 4, characterized in that: The support frame (55) is equipped with balls (531) that match the lead screw (53).

7. The sludge dewatering and drying device as described in claim 4, characterized in that: The support frame (55) is provided with a rotating groove (551).

8. The sludge dewatering and drying device as described in claim 1, characterized in that: The outer cylinder (1) has a mud inlet (101) and a mud outlet (102) at both ends, and the water collection tank (9) has a drain outlet (91).

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