A dry and wet sludge mixing, homogenization, and dewatering device

Abstract

This utility model relates to the technical field of sludge dewatering, and in particular to a dry and wet sludge mixing and homogenization dewatering device. It dries sludge through a dual method of vacuum adsorption and electric heating, resulting in better drying effect, ease of use, and high practicality. The device includes a belt conveyor with a conveyor belt; a collection box, a mixing mechanism, a vacuum mechanism, and an electric heating mechanism. The collection box is located below the right end of the conveyor belt. The mixing mechanism mixes the sludge. The conveyor belt has multiple through holes that connect vertically. A filter cloth is provided on the surface of the conveyor belt. The vacuum mechanism is in contact with the conveyor belt and performs vacuum adsorption. The electric heating mechanism is located above the conveyor belt and performs heating.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge dewatering, and in particular to a device for homogenizing and dewatering dry and wet sludge. Background Technology

[0002] In sludge treatment, dewatering and drying is a common method. Since wet sludge typically has a moisture content of around 80%, its initial viscosity is high during dewatering and drying. Directly adding it to the dewatering and drying equipment can cause it to stick to the equipment, affecting its operation. Therefore, when dewatering sludge, wet and dry sludge are first mixed evenly to reduce the moisture content and viscosity before being fed into the dewatering and drying equipment. In the prior art, a utility model patent with patent application number 201620342867.X discloses a mobile belt vacuum dewatering machine, which mainly consists of a filter screen and a vacuum mechanism. When dewatering sludge, the sludge is placed on the filter screen and conveyed. Then, a vacuum suction force is applied to the sludge on the filter screen to remove the water from the sludge. However, it has the following problems in use: if the water in the sludge is only adsorbed by vacuum, some water will still remain in the sludge, and the dewatering effect is not good. Therefore, a sludge dewatering device with a better dewatering effect is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a dry and wet sludge mixing, homogenization and dewatering device that dries sludge through a dual method of vacuum adsorption and electric heating, which has a better drying effect, is convenient to use and has high practicality.

[0004] This utility model discloses a dry and wet sludge mixing, homogenization, and dewatering device, comprising a belt conveyor with a conveyor belt; it also includes a collection box, a mixing mechanism, a vacuum mechanism, and an electric heating mechanism. The collection box is located below the right end of the conveyor belt. The mixing mechanism mixes the sludge. The conveyor belt has multiple vertically connected through holes, and a filter cloth is provided on the surface of the conveyor belt. The vacuum mechanism is in contact with the conveyor belt and performs vacuum adsorption. The electric heating mechanism is located above the conveyor belt and performs heating. During sludge dewatering, a certain amount of dry and wet sludge is first mixed in the mixing mechanism... The sludge is thoroughly mixed and discharged to the left and right sides of the upper end of the conveyor belt. Then, the belt conveyor is turned on, causing the conveyor belt to move the sludge to the right. When the sludge passes above the vacuum mechanism, the vacuum mechanism sucks out the water from the sludge. Then, the conveyor belt continues to move the sludge to the right. When the sludge passes below the electric heating mechanism, the electric heating mechanism heats the sludge, causing the residual water in the sludge to evaporate. The dried sludge falls into the collection box at the right end of the conveyor belt for collection. This method dries the sludge through a dual approach of vacuum adsorption and electric heating, resulting in better drying effect, ease of use, and high practicality.

[0005] Preferably, the vacuum mechanism includes a support frame, a dewatering tank, a vacuum pump, and a drain pipe. The dewatering tank is fixedly mounted on the support frame and has a cavity inside. The upper end of the dewatering tank is open and contacts the lower end of the conveyor belt. The vacuum pump is fixedly mounted on the dewatering tank and has an air inlet pipe at its input end. The air inlet pipe is located in the upper part of the cavity of the dewatering tank, and its inlet direction is inclined downwards. A drain pipe communicating with the cavity is provided at the lower part of the dewatering tank, and a valve is provided on the drain pipe. A transparent observation window is provided on the dewatering tank. When the sludge is conveyed on the conveyor belt, a valve is opened. Turn on the vacuum pump to expel the gas inside the dewatering tank, creating a negative pressure state within the tank cavity. This allows water from the sludge at the top of the conveyor belt to be drawn into the tank through the through-holes in the conveyor belt. Simultaneously, the downward-sloping inlet of the vacuum pump prevents water from entering the pump itself. The liquid level in the dewatering tank can be monitored through a transparent observation window to ensure it doesn't exceed the vacuum pump's inlet. When there is too much water in the tank, open the valve on the drain pipe to drain and collect the water. This process facilitates the vacuum adsorption drying of the sludge.

[0006] Preferably, the electric heating mechanism includes a fixed frame and a mounting plate. The mounting plate is fixedly installed on the fixed frame and is located above the conveyor belt. Multiple electric heating lamps are provided on the mounting plate. After the sludge is vacuum adsorbed and dehydrated on the conveyor belt, the sludge continues to be conveyed to the right via the conveyor belt. When the sludge passes below the mounting plate, the multiple electric heating lamps on the mounting plate are turned on to heat the sludge, causing the residual moisture in the sludge to evaporate, which facilitates the drying of the sludge.

[0007] Preferably, the mixing mechanism includes a support frame, a mixing box, a discharge pipe, a crushing mechanism, a stirring mechanism, and a conveying mechanism. The mixing box is fixedly installed above the support frame and has a chamber inside. The discharge pipe is installed below the right side of the mixing box and communicates with the chamber of the mixing box. The right end of the discharge pipe is located above the conveyor belt. The crushing mechanism, stirring mechanism, and conveying mechanism are all installed in the mixing box. The crushing mechanism has a crushing function, the stirring mechanism has a stirring function, and the conveying mechanism has a conveying function. A removable sealing cap is provided at the right end of the discharge pipe. When mixing dry and wet sludge, a certain amount of dry sludge and wet sludge are added to the chamber of the mixing box. Then, the crushing mechanism breaks up the clumps of dry sludge. The broken dry and wet sludge are located in the lower part of the mixing box chamber. Then, the stirring mechanism is turned on to promote the mixing between the dry and wet sludge. Then, the sealing cap at the right end of the discharge pipe is turned on, and then the conveying mechanism is turned on so that the mixed sludge is discharged through the right end of the discharge pipe onto the conveyor belt for dewatering. This facilitates the mixing of dry and wet sludge.

[0008] Preferably, the crushing mechanism includes an arc-shaped plate, a motor A, and a crushing shaft. The arc-shaped plate is fixedly installed on the upper part of the mixing chamber, and the lower part of the arc-shaped plate is arc-shaped. The arc-shaped plate is provided with multiple vertically connected sludge discharge holes. The motor A is fixedly installed on the mixing chamber, and the power output end of the motor A is provided with a crushing shaft. The crushing shaft is rotatably installed on the mixing chamber and is provided with multiple crushing blades. When dry sludge is added to the mixing chamber, the motor A is turned on, and the motor A drives the crushing shaft to rotate, breaking the clumps of dry sludge into small pieces. The broken sludge falls into the lower part of the mixing chamber through the sludge discharge holes on the arc-shaped plate.

[0009] Preferably, the stirring mechanism includes a motor B and a stirring shaft. The motor B is fixedly mounted on the mixing chamber, and the stirring shaft is provided at the power output end of the motor B. The stirring shaft is rotatably mounted on the collection box, and multiple stirring blades are provided on the stirring shaft, all of which are located in the mixing chamber. When the crushed dry sludge and wet sludge are in the lower part of the mixing chamber, the motor B is turned on, and the motor B drives the stirring shaft to rotate, promoting the mixing between the dry sludge and wet sludge.

[0010] Preferably, the conveying mechanism includes a motor C, a rotating shaft, and spiral blades. The motor C is fixedly mounted on the mixing box, and the power output end of the motor C is connected to the rotating shaft. The rotating shaft is rotatably mounted on the mixing box, and the spiral blades are fixedly mounted on the rotating shaft. The left part of the spiral blades is located inside the mixing box chamber, and the right part of the spiral blades is located in the discharge pipe. When the motor C is turned on, the rotating shaft drives the spiral blades to rotate, so that the sludge in the mixing box chamber is discharged onto the conveyor belt through the discharge pipe. This facilitates the conveying of sludge.

[0011] Preferably, a sealing rubber strip is provided at the upper end of the dehydration tank; the sealing rubber strip contacts the conveyor belt, which not only reduces the wear of the dehydration tank on the conveyor belt, but also improves the sealing between the dehydration tank and the collection tank.

[0012] Compared with the prior art, the advantages of this utility model are: it dries sludge through a dual method of vacuum adsorption and electric heating, resulting in better sludge drying effect, convenient use, and high practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the crushing mechanism;

[0016] Figure 4 This is a schematic diagram of the vacuum mechanism;

[0017] Figure 5This is a schematic diagram of the stirring mechanism;

[0018] Figure 6 This is a schematic diagram of the conveying mechanism.

[0019] The following are labels in the attached diagram: 1. Belt conveyor; 2. Conveyor belt; 3. Collection box; 4. Support frame; 5. Dehydration box; 6. Vacuum pump; 7. Drain pipe; 8. Fixing frame; 9. Mounting plate; 10. Support frame; 11. Mixing box; 12. Discharge pipe; 13. Arc plate; 14. Motor A; 15. Crushing shaft; 16. Motor B; 17. Stirring shaft; 18. Motor C; 19. Rotating shaft; 20. Spiral blade. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 6 The present invention relates to a dry and wet sludge mixing, homogenizing, and dewatering device, comprising a belt conveyor 1, a collection box 3, a mixing mechanism, a vacuum mechanism, and an electric heating mechanism. The belt conveyor 1 is equipped with a conveyor belt 2, and the collection box 3 is located below the right end of the conveyor belt 2. The mixing mechanism functions to mix the sludge. The conveyor belt 2 has multiple through holes that connect vertically, and a filter cloth is provided on its surface. The vacuum mechanism is in contact with the conveyor belt 2 and functions to perform vacuum adsorption. The electric heating mechanism is located above the conveyor belt 2 and functions to heat the sludge. During sludge dewatering, a certain amount of dry and wet sludge is first mixed in the mixing mechanism... The sludge is mixed evenly and discharged to the left and right sides of the upper end of conveyor belt 2. Then, the belt conveyor 1 is turned on, causing conveyor belt 2 to move the sludge to the right. When the sludge passes above the vacuum mechanism, the vacuum mechanism sucks out the water from the sludge. Then, conveyor belt 2 continues to move the sludge to the right. When the sludge passes below the electric heating mechanism, the electric heating mechanism heats the sludge, causing the residual water in the sludge to evaporate. The dried sludge falls into the collection box 3 through the right end of conveyor belt 2 for collection. It dries the sludge through a dual method of vacuum adsorption and electric heating, resulting in better drying effect, convenient use, and high practicality.

[0023] like Figure 1 and Figure 4The vacuum mechanism includes a support frame 4, a dewatering tank 5, a vacuum pump 6, and a drain pipe 7. The dewatering tank 5 is fixedly mounted on the support frame 4 and has a cavity inside. The upper end of the dewatering tank 5 is open and contacts the lower end of the conveyor belt 2. The vacuum pump 6 is fixedly mounted on the dewatering tank 5 and has an air inlet pipe at its input end. The air inlet pipe is located at the upper part of the cavity of the dewatering tank 5 and its inlet direction is inclined downwards. The lower part of the dewatering tank 5 has a drain pipe 7 that communicates with the cavity and has a valve. The dewatering tank 5 has a transparent observation window. When the sludge is conveyed on the conveyor belt 2, the valve is opened. Turn on vacuum pump 6 to discharge the gas in dewatering tank 5, creating a negative pressure state inside the cavity of dewatering tank 5. This allows water in the sludge at the upper end of conveyor belt 2 to be drawn into dewatering tank 5 through the through holes on conveyor belt 2. At the same time, because the inlet of the air inlet pipe on vacuum pump 6 is tilted downwards, it prevents water from entering vacuum pump 6. Meanwhile, the liquid level in dewatering tank 5 can be observed through the transparent observation window to prevent the liquid level from exceeding the air inlet of vacuum pump 6. When there is too much water in dewatering tank 5, open the valve on drain pipe 7 to drain the water from dewatering tank 5 and collect it. This facilitates the vacuum adsorption drying of sludge.

[0024] like Figure 1 The electric heating mechanism includes a fixed frame 8 and a mounting plate 9. The mounting plate 9 is fixedly installed on the fixed frame 8 and is located above the conveyor belt 2. Multiple electric heating lamps are installed on the mounting plate 9. After the sludge is dehydrated by vacuum adsorption on the conveyor belt 2, the sludge continues to be conveyed to the right via the conveyor belt 2. When the sludge passes under the mounting plate 9, the multiple electric heating lamps on the mounting plate 9 are turned on to heat the sludge, causing the residual water in the sludge to evaporate, which facilitates the drying of the sludge.

[0025] like Figure 1 The mixing mechanism includes a support frame 10, a mixing box 11, a discharge pipe 12, a crushing mechanism, a stirring mechanism, and a conveying mechanism. The mixing box 11 is fixedly installed above the support frame 10. A chamber is provided inside the mixing box 11. The discharge pipe 12 is installed below the right side of the mixing box 11 and communicates with the chamber of the mixing box 11. The right end of the discharge pipe 12 is located above the conveyor belt 2. The crushing mechanism, stirring mechanism, and conveying mechanism are all installed in the mixing box 11. The crushing mechanism has a crushing function, the stirring mechanism has a stirring function, and the conveying mechanism... It has a conveying function; the right end of the discharge pipe 12 is provided with a removable sealing cover; when mixing dry and wet sludge, a certain amount of dry sludge and wet sludge are added to the chamber of the mixing box 11, and then the crushing mechanism breaks up the clumps of dry sludge. The crushed dry sludge and wet sludge are in the lower part of the chamber of the mixing box 11. Then the stirring mechanism is turned on to promote the mixing between the dry sludge and wet sludge. Then the sealing cover at the right end of the discharge pipe 12 is turned on, and then the conveying mechanism is turned on so that the mixed sludge is discharged through the right end of the discharge pipe 12 onto the conveyor belt 2 for dewatering.

[0026] like Figure 1 and Figure 3 The crushing mechanism includes an arc-shaped plate 13, a motor A14, and a crushing shaft 15. The arc-shaped plate 13 is fixedly installed on the upper part of the mixing chamber 11. The lower part of the arc-shaped plate 13 is arc-shaped. The arc-shaped plate 13 is provided with multiple vertically connected sludge discharge holes. The motor A14 is fixedly installed on the mixing chamber 11. The power output end of the motor A14 is provided with the crushing shaft 15. The crushing shaft 15 is rotatably installed on the mixing chamber 11 and is provided with multiple crushing blades. When dry sludge is added to the mixing chamber 11, the motor A14 is turned on. The motor A14 drives the crushing shaft 15 to rotate, breaking the clumps of dry sludge into small pieces. The broken sludge falls into the lower part of the mixing chamber 11 through the sludge discharge holes on the arc-shaped plate 13.

[0027] like Figure 1 and Figure 5 The mixing mechanism includes a motor B16 and a mixing shaft 17. The motor B16 is fixedly installed on the mixing chamber 11, and the power output end of the motor B16 is provided with the mixing shaft 17. The mixing shaft 17 is rotatably installed on the collection box 3. Multiple mixing blades are provided on the mixing shaft 17, and the multiple mixing blades are all located in the chamber of the mixing chamber 11. When the crushed dry sludge and wet sludge are in the lower part of the chamber of the mixing chamber 11, the motor B16 is turned on, and the motor B16 drives the mixing shaft 17 to rotate, promoting the mixing between the dry sludge and wet sludge.

[0028] like Figure 1 and Figure 6 The conveying mechanism includes a motor C18, a rotating shaft 19, and a spiral blade 20. The motor C18 is fixedly mounted on the mixing box 11, and the power output end of the motor C18 is connected to the rotating shaft 19. The rotating shaft 19 is rotatably mounted on the mixing box 11. The spiral blade 20 is fixedly mounted on the rotating shaft 19. The left part of the spiral blade 20 is located in the chamber of the mixing box 11, and the right part of the spiral blade 20 is located in the discharge pipe 12. When the motor C18 is turned on, the rotating shaft 19 drives the spiral blade 20 to rotate, so that the sludge in the chamber of the mixing box 11 can be discharged onto the conveyor belt 2 through the discharge pipe 12. This facilitates the conveying of sludge.

[0029] Example 2

[0030] Based on Example 1, a sealing rubber strip is provided at the upper end of the dehydration tank 5; the sealing rubber strip is in contact with the conveyor belt 2, which not only reduces the wear of the dehydration tank 5 on the conveyor belt 2, but also improves the sealing between the dehydration tank 5 and the collection box 3.

[0031] A flushing mechanism can also be added to flush away the residual sludge on conveyor belt 2.

[0032] It should be added that: all electrical equipment in this case is connected to an external controller, which coordinates and controls the operation of each piece of electrical equipment.

[0033] The belt conveyor 1, vacuum pump 6, arc plate 13, crushing shaft 15, motor C18 and spiral blade 20 of the dry and wet sludge mixing homogenization and dewatering device of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dry and wet sludge mixing, homogenization, and dewatering device, comprising a belt conveyor (1) and a conveyor belt (2) disposed on the belt conveyor (1); characterized in that, It also includes a collection box (3), a mixing mechanism, a vacuum mechanism and an electric heating mechanism. The collection box (3) is located below the right end of the conveyor belt (2). The mixing mechanism has the function of mixing sludge. The conveyor belt (2) is provided with multiple through holes that are connected vertically. The surface of the conveyor belt (2) is provided with filter cloth. The vacuum mechanism is in contact with the conveyor belt (2) and has the function of vacuum adsorption. The electric heating mechanism is located above the conveyor belt (2) and has the function of heating.

2. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 1, characterized in that, The vacuum mechanism includes a bracket (4), a dehydration tank (5), a vacuum pump (6), and a drain pipe (7). The dehydration tank (5) is fixedly installed on the bracket (4). A cavity is provided inside the dehydration tank (5). The upper end of the dehydration tank (5) is open. The upper end of the dehydration tank (5) is in contact with the lower end of the conveyor belt (2). The vacuum pump (6) is fixedly installed on the dehydration tank (5). An air inlet pipe is provided at the input end of the vacuum pump (6). The air inlet pipe is located at the upper part of the cavity of the dehydration tank (5). The direction of the air inlet pipe is inclined downward. A drain pipe (7) communicating with the cavity is provided at the lower part of the dehydration tank (5). A valve is provided on the drain pipe (7).

3. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 1, characterized in that, The electric heating mechanism includes a fixed frame (8) and a mounting plate (9). The mounting plate (9) is fixedly installed on the fixed frame (8) and is located above the conveyor belt (2). Multiple electric heating lamps are provided on the mounting plate (9).

4. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 1, characterized in that, The mixing mechanism includes a support frame (10), a mixing box (11), a discharge pipe (12), a crushing mechanism, a stirring mechanism, and a conveying mechanism. The mixing box (11) is fixedly installed above the support frame (10). A chamber is provided inside the mixing box (11). The discharge pipe (12) is installed below the right side of the mixing box (11). The discharge pipe (12) communicates with the chamber of the mixing box (11). The right end of the discharge pipe (12) is located above the conveyor belt (2). The crushing mechanism, the stirring mechanism, and the conveying mechanism are all installed in the mixing box (11). The crushing mechanism has the function of crushing, the stirring mechanism has the function of stirring, and the conveying mechanism has the function of conveying.

5. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 4, characterized in that, The crushing mechanism includes an arc plate (13), a motor A (14), and a crushing shaft (15). The arc plate (13) is fixedly installed on the upper part of the mixing box (11). The lower part of the arc plate (13) is arc-shaped. The arc plate (13) is provided with multiple vertically connected mud discharge holes. The motor A (14) is fixedly installed on the mixing box (11). The power output end of the motor A (14) is provided with a crushing shaft (15). The crushing shaft (15) is rotatably installed on the mixing box (11). The crushing shaft (15) is provided with multiple crushing blades.

6. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 4, characterized in that, The stirring mechanism includes a motor B (16) and a stirring shaft (17). The motor B (16) is fixedly installed on the mixing box (11). The power output end of the motor B (16) is provided with a stirring shaft (17). The stirring shaft (17) is rotatably installed on the collection box (3). Multiple stirring blades are provided on the stirring shaft (17), and the multiple stirring blades are all located in the chamber of the mixing box (11).

7. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 4, characterized in that, The conveying mechanism includes a motor C (18), a rotating shaft (19), and a spiral blade (20). The motor C (18) is fixedly installed on the mixing box (11). The power output end of the motor C (18) is connected to the rotating shaft (19). The rotating shaft (19) is rotatably installed on the mixing box (11). The spiral blade (20) is fixedly installed on the rotating shaft (19). The left part of the spiral blade (20) is located in the chamber of the mixing box (11), and the right part of the spiral blade (20) is located in the discharge pipe (12).

8. The dry and wet sludge mixing, homogenization, and dewatering device as described in claim 2, characterized in that, The upper end of the dehydration tank (5) is provided with a sealing rubber strip.

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