Automatic feeding device for sludge dewatering agent

Abstract

The utility model discloses an automatic feeding device for a sludge dewatering agent, which belongs to the technical field of sludge treatment, aims at solving the problems that the dewatering agent cannot be automatically and quantitatively added and the accuracy is poor, and comprises a tank body, a feeding pipe, an adding mechanism, a stirring device, a controller and a water outlet pipe, the adding mechanism is arranged on the upper right portion in the tank body, the stirring device is arranged in the middle in the tank body, the controller is fixedly connected to the outer wall of the tank body, and the water outlet pipe is fixedly connected to the lower portion of the tank body; according to the device, a dewatering agent in the agent storage tank can be added into the quantitative box, then liquid in the quantitative box is automatically added into the tank body, the dewatering agent is automatically added, the agent can be quantitatively added according to the amount of the added sludge, the automation of the device is improved, agent adding is more intelligent and accurate, and the efficiency is improved. Waste of chemicals is avoided, resources are saved, the workload of workers is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge treatment, and particularly relates to an automatic dosing device for sludge dewatering agents. Background Art

[0002] Sludge dewatering agents are chemicals used to improve the dewatering performance of sludge and promote solid-liquid separation, and are widely used in the sludge treatment process. The main components of sludge dewatering agents include chemical agents such as inorganic compounds, sludge surface structure modifiers, degreasing agents, cell wall breakers, sludge surface treatment agents, and sludge stripping agents. These components can change the surface structure of sludge, reduce the surface load and specific surface area of the sludge solid, and destroy the bacterial structure, thereby effectively improving the dewatering performance of sludge.

[0003] In the prior art, there is a sludge dewatering agent dosing device with the patent publication number CN213668928U. In the center position of the top cover of the above patent, a speed-regulating rotating device is installed. The speed-regulating rotating device is connected to one end of a rotating shaft, and the other end of the rotating shaft passes through the top cover and extends into the tank. A paddle is connected to the end of the rotating shaft. A medicine outlet pipe is led out from the bottom of the stirring tank, and a suction pump and a valve are respectively installed on the medicine outlet pipe. This device has the characteristics of simple structure, energy saving, and uniform stirring. However, there are still the following deficiencies in actual use: In practice, when adding the agent, it is necessary to mix according to the ratio required by the product, but this device cannot automatically quantitatively add the dewatering agent, with poor accuracy and affecting work efficiency.

[0004] Therefore, an automatic dosing device for sludge dewatering agents is needed to solve the problems of inability to automatically quantitatively add dewatering agents and poor accuracy in the prior art. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic dosing device for sludge dewatering agents to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An automatic dosing device for sludge dewatering agents, comprising a tank body, a feed pipe, a dosing mechanism, a stirring device, a controller, and a water outlet pipe. The feed pipe is fixedly connected to the upper left side of the tank body. The dosing mechanism is arranged in the upper right part of the tank body. The stirring device is arranged in the middle of the tank body. The controller is fixedly connected to the outer wall of the tank body. The water outlet pipe is fixedly connected to the lower part of the tank body.

[0007] The adding mechanism is composed of a medicine inlet tank, a medicine storage tank, a quantitative box, an automatic door, a baffle plate, a limit block, a rotating combined rod, a positioning box, a bottom plate, a pressure sensor, an installation box, a cylinder, a moving plate, a slider, a stretching plate, a spring and an L-shaped connecting plate. The medicine inlet tank is fixedly connected to the upper right side of the tank body. The medicine storage tank is fixedly connected to the inner top surface of the tank body and is communicated with the medicine inlet tank. A medicine outlet is formed below the medicine storage tank.

[0008] It should be noted in the solution that partition plates are symmetrically and fixedly connected to the front and rear sides below the medicine storage tank. The bottom plate is fixedly connected between the two partition plates, and a pressure sensor is fixedly installed on the top surface of the bottom plate. The pressure sensor is electrically connected to the controller.

[0009] Furthermore, it is worth noting that the quantitative box is arranged below the medicine outlet and above the bottom plate. The positioning box is fixedly connected to the right side of the medicine storage tank, and limit blocks are symmetrically and fixedly connected to both ends of the baffle plate. The baffle plate is slidably connected to the inside of the positioning box through the limit blocks, and the top end of the baffle plate is flush with the bottom surface of the medicine outlet.

[0010] Even further, it should be noted that the rotating combined rod is symmetrically rotatably connected between the baffle plate and the quantitative box. The automatic door is rotatably connected below the quantitative box and is electrically connected to the controller.

[0011] As a preferred implementation manner, the installation box is fixedly connected below the inner top surface of the tank body. The cylinder is fixedly connected to the left inner part of the installation box and is electrically connected to the controller. The moving plate is fixedly connected to the output end of the cylinder. The slider is fixedly connected above the moving plate and is slidably connected to the bottom surface of the installation box.

[0012] As a preferred implementation manner, a groove is formed in the middle and lower part inside the moving plate. The stretching plate is slidably connected to the inside of the groove. The spring is fixedly connected between the top surface of the groove and the stretching plate. The L-shaped connecting plate is fixedly connected to the lower part of the stretching plate, and the right end of the L-shaped connecting plate is fixedly connected to the quantitative box.

[0013] As a preferred implementation manner, the stirring device is composed of a motor, a stirring shaft and stirring rods. The motor is fixedly connected to the middle part above the tank body. The stirring shaft is connected to the output end of the motor. The stirring rods are symmetrically and fixedly connected to both sides of the stirring shaft.

[0014] Compared with the prior art, the sludge dewatering agent automatic dosing device provided by the present utility model has at least the following beneficial effects:

[0015] Through the provided adding mechanism, the dehydrating agent inside the medicine storage tank can be added into the quantitative box, and then the liquid inside the quantitative box can be automatically added into the tank body, completing the automatic addition of the dehydrating agent. Moreover, the agent can be added quantitatively according to the amount of sludge input, improving the automation of the device, making the addition of the agent more intelligent and accurate, avoiding waste of the agent, saving resources, reducing the workload of the staff, and enhancing the practicality of the device. Brief Description of the Drawings

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the present utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the tank body of the present utility model;

[0018] Figure 3 It is a schematic diagram of the liquid adding state of the adding mechanism of the present utility model;

[0019] Figure 4 It is a schematic diagram of the liquid discharging state of the adding mechanism of the present utility model.

[0020] In the figure: 1. Tank body; 2. Feed pipe; 3. Adding mechanism; 4. Stirring device; 5. Controller; 6. Water outlet pipe; 301. Medicine inlet tank; 302. Medicine storage tank; 303. Medicine outlet; 304. Quantitative box; 305. Automatic door; 306. Baffle; 307. Limit block; 308. Rotating combined rod; 309. Positioning box; 310. Bottom plate; 311. Pressure sensor; 312. Installation box; 313. Cylinder; 314. Moving plate; 315. Slide block; 316. Tensile plate; 317. Spring; 318. L-shaped connecting plate. Detailed Embodiment

[0021] The following further describes the present utility model in conjunction with embodiments.

[0022] Please refer to Figures 1-4 , the present utility model provides an automatic dosing device for sludge dehydrating agent, including a tank body 1, a feed pipe 2, an adding mechanism 3, a stirring device 4, a controller 5 and a water outlet pipe 6. The feed pipe 2 is fixedly connected to the upper left side of the tank body 1, the adding mechanism 3 is arranged in the upper right part inside the tank body 1, the stirring device 4 is arranged in the middle inside the tank body 1, the controller 5 is fixedly connected to the outer wall of the tank body 1, and the water outlet pipe 6 is fixedly connected to the lower part of the tank body 1.

[0023] The adding mechanism 3 is composed of a medicine inlet tank 301, a medicine storage tank 302, a quantitative box 304, an automatic door 305, a baffle 306, a limit block 307, a rotating combined rod 308, a positioning box 309, a bottom plate 310, a pressure sensor 311, an installation box 312, a cylinder 313, a moving plate 314, a slider 315, a stretching plate 316, a spring 317 and an L-shaped connecting plate 318. The medicine inlet tank 301 is fixedly connected to the upper right side of the tank body 1. The medicine storage tank 302 is fixedly connected to the inner top surface of the tank body 1, and the medicine storage tank 302 is communicated with the medicine inlet tank 301. A medicine outlet 303 is opened below the medicine storage tank 302.

[0024] Further, as shown in Figure 2 , Figure 3 and Figure 4 it is worth specifically explaining that partition plates are symmetrically and fixedly connected to the front and rear sides below the medicine storage tank 302. The bottom plate 310 is fixedly connected between the two partition plates, and a pressure sensor 311 is fixedly installed on the top surface of the bottom plate 310. The pressure sensor 311 is electrically connected to the controller 5. The quantitative box 304 is arranged below the medicine outlet 303 and above the bottom plate 310. The positioning box 309 is fixedly connected to the right side of the medicine storage tank 302, and the limit blocks 307 are symmetrically and fixedly connected to both ends of the baffle 306. The baffle 306 is slidably connected to the inside of the positioning box 309 through the limit blocks 307, and the top end of the baffle 306 is flush with the bottom surface of the medicine outlet 303.

[0025] Further, as shown in Figure 2 , Figure 3 and Figure 4 it is worth specifically explaining that the rotating combined rod 308 is symmetrically rotatably connected between the baffle 306 and the quantitative box 304. The automatic door 305 is rotatably connected to the lower part of the quantitative box 304, and the automatic door 305 is electrically connected to the controller 5. The installation box 312 is fixedly connected to the lower part of the inner top surface of the tank body 1. The cylinder 313 is fixedly connected to the left inner part of the installation box 312, and the cylinder 313 is electrically connected to the controller 5. The moving plate 314 is fixedly connected to the output end of the cylinder 313. The slider 315 is fixedly connected to the upper part of the moving plate 314, and the slider 315 is slidably connected to the bottom surface of the installation box 312;

[0026] By arranging the slider 315 to slide on the top of the installation box 312, the stability of the movement of the lower moving plate 314 and the L-shaped connecting plate 318 driving the quantitative box 304 is ensured.

[0027] Further, as shown in Figure 2 , Figure 3 and Figure 4As shown, it is worth specifically explaining that a groove is formed in the lower middle inside the moving plate 314. The stretching plate 316 is slidably connected to the inside of the groove. The spring 317 is fixedly connected between the top surface of the groove and the stretching plate 316. The L-shaped connecting plate 318 is fixedly connected to the lower part of the stretching plate 316. The right end of the L-shaped connecting plate 318 is fixedly connected to the dosing box 304.

[0028] By arranging the spring 317, the elastic effect of the spring 317 can be utilized to stably connect the dosing boxes 304 of different weights, and the height adjustment of the dosing box 304 is not affected by the movement driven by the moving plate 314.

[0029] Furthermore, as shown in Figure 2 , Figure 3 and Figure 4 shown, it is worth specifically explaining that the stirring device 4 is composed of a motor, a stirring shaft and stirring rods. The motor is fixedly connected to the middle upper part of the tank body 1. The stirring shaft is connected to the output end of the motor. The stirring rods are symmetrically and fixedly connected to both sides of the stirring shaft.

[0030] The sludge and chemicals entering the inside of the tank body 1 are stirred and mixed by the arranged stirring device 4.

[0031] The working process of this solution is as follows: When in use, the sludge is conveyed into the inside of the tank body 1 through the feed pipe 2, and a quantitative dewatering chemical is added according to the amount of sludge inside. First, the dewatering chemical is added into the chemical tank 301, enters the chemical storage tank 302, and falls into the inside of the dosing box 304 through the chemical outlet 303. As the added chemical increases, it drives the dosing box 304 to move downward until the automatic door 305 contacts the pressure sensor 311. The pressure sensor 311 transmits a signal to the controller 5, which controls the air cylinder 313 to drive the moving plate 314 to move to the left. By arranging the slider 315 to slide on the top of the mounting box 312, the stability of the movement of the lower moving plate 314 and the L-shaped connecting plate 318 driving the dosing box 304 is ensured, thereby driving the dosing box 304 to move leftward. At the same time, by rotating the combined rod 308, the baffle 306 is driven to move leftward to block the chemical outlet 303 to prevent the chemical outlet 303 from discharging liquid continuously until the pressure sensor 311 can no longer detect the weight of the dosing box 304. At this time, the dosing box 304 completely moves out of the upper part of the bottom plate 310. The pressure sensor 311 transmits a signal to the controller 5 to control the automatic door 305 to open, and the chemical in the dosing box 304 is added into the tank body 1 to achieve automatic chemical dosing.

[0032] In summary: By means of the added mechanism 3 provided, the dehydration agent inside the medicine storage tank 302 can be added into the inside of the dosing box 304, and then the liquid inside the dosing box 304 can be automatically added into the inside of the tank body 1 to complete the automatic dosing of the dehydration agent. Moreover, the agent can be dosed quantitatively according to the amount of sludge input, improving the automation of the device, making the dosing of the agent more intelligent and accurate, avoiding waste of the agent, saving resources, reducing the workload of the staff, and improving the practicability of the device.

Claims

1. A sludge dehydration agent automatic dosing device, comprising a tank body (1), a feed pipe (2), a dosing mechanism (3), a stirring device (4), a controller (5) and a water outlet pipe (6), characterized in that: The feed pipe (2) is fixedly connected to the upper left side of the tank body (1), the adding mechanism (3) is arranged at the upper right inside the tank body (1), the stirring device (4) is arranged in the middle inside the tank body (1), the controller (5) is fixedly connected to the outer wall of the tank body (1), and the water outlet pipe (6) is fixedly connected to the bottom of the tank body (1); The adding mechanism (3) is composed of a medicine inlet tank (301), a medicine storage tank (302), a quantitative box (304), an automatic door (305), a baffle (306), a limit block (307), a rotating combination rod (308), a positioning box (309), a bottom plate (310), a pressure sensor (311), a mounting box (312), a cylinder (313), a moving plate (314), a slider (315), a stretching plate (316), a spring (317) and an L-shaped connecting plate (318). The medicine inlet tank (301) is fixedly connected to the upper right side of the tank body (1), the medicine storage tank (302) is fixedly connected to the inner top surface of the tank body (1), and the medicine storage tank (302) is connected to the medicine inlet tank (301), and a medicine outlet (303) is provided at the bottom of the medicine storage tank (302).

2. The automatic dosing device for sludge dehydration agent according to claim 1 is characterized by: Partitions are symmetrically fixedly connected to the front and rear sides below the medicine storage tank (302), the bottom plate (310) is fixedly connected between the two partitions, and a pressure sensor (311) is fixedly installed on the top surface of the bottom plate (310), and the pressure sensor (311) is electrically connected to the controller (5).

3. The automatic dosing device for sludge dehydration agent according to claim 2 is characterized in that: The quantitative box (304) is arranged below the medicine outlet (303), and the quantitative box (304) is arranged above the bottom plate (310), the positioning box (309) is fixedly connected to the right side of the medicine storage tank (302), and the limit blocks (307) are symmetrically fixedly connected to the two ends of the baffle (306), the baffle (306) is slidably connected to the inside of the positioning box (309) through the limit blocks (307), and the top of the baffle (306) is flush with the bottom surface of the medicine outlet (303).

4. The automatic dosing device for sludge dehydration agent according to claim 3 is characterized by: The rotating combination rod (308) is symmetrically connected between the baffle (306) and the quantitative box (304), the automatic door (305) is connected to the bottom of the quantitative box (304), and the automatic door (305) is electrically connected to the controller (5).

5. The automatic dosing device for sludge dehydration agent according to claim 4 is characterized in that: The installation box (312) is fixedly connected to the lower part of the internal top surface of the tank body (1); the cylinder (313) is fixedly connected to the left inner part of the installation box (312), and the cylinder (313) is electrically connected to the controller (5); the moving plate (314) is fixedly connected to the output end of the cylinder (313); the slider (315) is fixedly connected to the upper part of the moving plate (314), and the slider (315) is slidably connected to the bottom surface of the installation box (312).

6. The automatic dosing device for sludge dehydration agent according to claim 5, characterized in that: A groove is provided at the lower middle portion of the interior of the movable plate (314); the stretching plate (316) is slidably connected to the interior of the groove; the spring (317) is fixedly connected between the top surface of the groove and the stretching plate (316); the L-shaped connecting plate (318) is fixedly connected to the bottom of the stretching plate (316); and the right end of the L-shaped connecting plate (318) is fixedly connected to the quantitative box (304).

7. The automatic dosing device for sludge dehydration agent according to claim 1 is characterized by: The stirring device (4) is composed of a motor, a stirring shaft and a stirring rod. The motor is fixedly connected to the upper middle part of the tank body (1), the stirring shaft is connected to the output end of the motor, and the stirring shaft is symmetrically fixedly connected to both sides of the stirring shaft.

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