Chemical hardness removal device for chemical wastewater

Abstract

The utility model discloses a chemical hardness removal device for chemical wastewater, which relates to the technical field of wastewater treatment in the coal chemical industry and comprises a treatment barrel, a stirring shaft is rotatably connected to the middle of a top plate of the treatment barrel, stirring blades are fixedly connected to the outer wall of the stirring shaft, and a motor and a blending box are fixedly arranged on the upper end face of the treatment barrel respectively. The upper end of an output shaft of the motor is fixedly sleeved with a driving disc, a first connecting rod is rotationally connected to the position, close to the side, of the upper end of the driving disc, and a movable cavity is formed in one side of the blending box. The gear, the driving disc, the first connecting rod, a second connecting rod, a piston, the blending box, the movable cavity, a chemical adding pipe, a waste water pipe, a connecting pipe, a first valve and a second valve are arranged; the effect of efficiently treating the wastewater is achieved, the problem that when hardness of the wastewater is removed by adopting a chemical dosing method in the prior art, the treatment efficiency is affected due to the fact that the softening agent and the wastewater need to be mixed for a certain time is solved, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment in the coal chemical industry, and particularly relates to a chemical hard removal device for chemical wastewater. Background Technique

[0002] Hard removal of industrial wastewater is a difficult problem in the water treatment industry. Generally, chemical dosing method, ion exchange method, membrane method and electrochemical method are adopted.

[0003] At present, the chemical dosing method is commonly used for hard removal of wastewater. Generally, the softening agent is directly put into the wastewater tank. However, since the wastewater in the tank is in a non-flowing state, the mixing effect between the softening agent and the wastewater is not good. For this reason, stirring is generally used to make the wastewater flow. However, it still takes a certain time for the softening agent to contact the wastewater at the bottom end, which affects the wastewater treatment efficiency. Based on this, we propose an improvement on a chemical hard removal device for chemical wastewater. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a chemical hard removal device for chemical wastewater, which can effectively solve the technical problem that when the existing chemical dosing method is used for hard removal of wastewater in the background technique, it takes a certain time for the softening agent and the wastewater to be mixed, resulting in the influence on the treatment efficiency.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A chemical hard removal device for chemical wastewater includes a treatment barrel. The middle part of the top plate of the treatment barrel is rotatably connected with a stirring shaft. Stirring blades are fixedly connected to the outer wall of the stirring shaft. A motor and a dispensing box are respectively fixedly arranged on the upper end surface of the treatment barrel. The upper end of the output shaft of the motor is fixedly sleeved with a driving disc. A first connecting rod is rotatably connected to a position near the side of the upper end of the driving disc. An activity cavity is opened on one side of the dispensing box. A piston is slidably sleeved in the activity cavity. A second connecting rod is fixedly connected to one end of the piston. The first connecting rod and the second connecting rod are rotatably connected. A chemical dosing pipe and a wastewater pipe are respectively fixedly sleeved on the dispensing box. A first valve is rotatably connected in the chemical dosing pipe. A connecting pipe is fixedly connected between the wastewater pipe and the activity cavity. A second valve is rotatably connected in the connecting pipe.

[0007] As a further scheme of the utility model, mounting plates are fixedly connected to the outer walls on both sides of the stirring shaft. Guide plates are fixedly connected to the lower end surfaces of the two mounting plates. Scrapers are slidably sleeved on one side of the two guide plates. The two scrapers are slidably attached to the inner wall of the treatment barrel.

[0008] As a further solution of the present utility model, a plurality of telescopic pins and a plurality of springs are respectively fixedly connected to the inner walls of the two guide plates. One ends of the plurality of telescopic pins and the plurality of springs are fixedly connected to the outer wall of the scraper, and the plurality of springs are respectively movably sleeved on the outer ends of the plurality of telescopic pins.

[0009] As a further solution of the present utility model, gear rings are fixedly sleeved on the outer walls of the output shaft of the motor and the stirring shaft, and the two gear rings are meshed with each other.

[0010] As a further solution of the present utility model, the valve plate of the first valve rotates downward to open, and the valve plate of the second valve opens toward the side of the wastewater pipe.

[0011] As a further solution of the present utility model, a discharge pipe is fixedly connected to one side of the treatment barrel near the lower end, and a solenoid valve is rotatably arranged on the discharge pipe.

[0012] As a further solution of the present utility model, the lower end of the chemical addition pipe is communicated with the movable cavity, and the lower end of the wastewater pipe is communicated with the inside of the treatment barrel.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing structures such as gear rings, drive disks, connecting rod one, connecting rod two, pistons, dispensing boxes, movable cavities, chemical addition pipes, wastewater pipes, connecting pipes, the first valve and the second valve, when the motor drives the stirring shaft to rotate through the gear rings, the drive disk can be driven to rotate simultaneously. Furthermore, through the mutual cooperation of connecting rod one and connecting rod two, the piston can be driven to reciprocate in the movable cavity. Then, in combination with the characteristics that the first valve and the second valve open and close automatically following the movement of the piston, chemical agents can be evenly added into the wastewater pipe periodically through the connecting pipe, so that the wastewater introduced into the treatment barrel is first mixed with the softening agent and then enters the stirring process, thereby effectively improving the efficiency of removing hardness from wastewater.

[0015] By providing structures such as mounting plates, guide plates, scrapers, telescopic pins and springs, when the stirring shaft rotates, the guide plates can be driven to rotate through the mounting plates, and then the scrapers can be driven to scrape and clean the sundries adhering to the inner wall of the treatment barrel. In combination with the provided telescopic pins and spring structures, it can ensure that the scrapers are always pressed against the inner wall of the treatment barrel, improving the cleaning effect and having practicality. Description of the Drawings

[0016] Figure 1 It is a schematic external structure diagram of a chemical wastewater hardness removal device of the present utility model;

[0017] Figure 2 It is a schematic internal structure diagram of a chemical wastewater hardness removal device of the present utility model;

[0018] Figure 3Schematic diagram of the internal structure of the dispensing tank of a chemical hardening removal device for chemical industrial wastewater according to the present utility model;

[0019] Figure 4 Schematic diagram of the internal structure of the guide plate of a chemical hardening removal device for chemical industrial wastewater according to the present utility model.

[0020] In the figure: 1, treatment barrel; 2, stirring shaft; 3, stirring blade; 4, mounting plate; 5, guide plate; 6, scraping plate; 7, telescopic pin; 8, spring; 9, motor; 10, gear; 11, driving disc; 12, connecting rod one; 13, connecting rod two; 14, dispensing tank; 15, movable cavity; 16, piston; 17, chemical addition pipe; 18, wastewater pipe; 19, connecting pipe; 20, valve one; 21, valve two; 22, discharge pipe. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] As Figures 1-4 shown, a chemical hardening removal device for chemical industrial wastewater includes a treatment barrel 1. The middle of the top plate of the treatment barrel 1 is rotatably connected with a stirring shaft 2. Stirring blades 3 are fixedly connected to the outer wall of the stirring shaft 2. A motor 9 and a dispensing tank 14 are respectively fixedly arranged on the upper end surface of the treatment barrel 1. The upper end of the output shaft of the motor 9 is fixedly sleeved with a driving disc 11. One end of a connecting rod one 12 is rotatably connected to a position near the side of the upper end of the driving disc 11. A movable cavity 15 is opened on one side of the dispensing tank 14. A piston 16 is slidably sleeved in the movable cavity 15. One end of the piston 16 is fixedly connected with a connecting rod two 13. The connecting rod one 12 and the connecting rod two 13 are rotatably connected to each other. A chemical addition pipe 17 and a wastewater pipe 18 are respectively fixedly sleeved on the dispensing tank 14. A valve one 20 is rotatably connected in the chemical addition pipe 17. A connecting pipe 19 is fixedly connected between the wastewater pipe 18 and the movable cavity 15. A valve two 21 is rotatably connected in the connecting pipe 19.

[0023] In this embodiment, mounting plates 4 are fixedly connected to the outer walls on both sides of the stirring shaft 2. Guide plates 5 are fixedly connected to the lower end surfaces of the two mounting plates 4. Scraping plates 6 are slidably sleeved on one side of the two guide plates 5. The two scraping plates 6 are slidably attached to the inner wall of the treatment barrel 1. The stirring shaft 2 drives the guide plates 5 to rotate through the mounting plates 4, thereby driving the scraping plates 6 to clean the inner wall of the treatment barrel 1.

[0024] In this embodiment, a plurality of telescopic pins 7 and a plurality of springs 8 are respectively fixedly connected to the inner walls of the two guide plates 5. One ends of the plurality of telescopic pins 7 and the plurality of springs 8 are fixedly connected to the outer wall of the scraping plate 6. The plurality of springs 8 are respectively movably sleeved on the outer ends of the plurality of telescopic pins 7. The telescopic pins 7 and the springs 8 can urge the scraping plate 6 to press against the inner wall of the treatment barrel 1, ensuring the cleaning effect of the scraping plate 6.

[0025] In this embodiment, gears 10 are fixedly sleeved on the output shaft of the motor 9 and the outer wall of the stirring shaft 2, and the two gears 10 are meshed with each other. Due to the meshing relationship between the two gears 10, the stirring shaft 2 can be driven to rotate after the motor 9 is started.

[0026] In this embodiment, the valve plate of the first valve 20 rotates downward to open, and the valve plate of the second valve 21 opens toward the waste water pipe 18 side, so as to be able to cooperate with the movement of the piston 16 to automatically open and close, realizing the periodic addition of the liquid medicine into the waste water.

[0027] In this embodiment, a discharge pipe 22 is fixedly connected to one side near the lower end of the treatment barrel 1, and a solenoid valve is rotatably arranged on the discharge pipe 22 for discharging the treated waste water.

[0028] In this embodiment, the lower end of the medicine adding pipe 17 is communicated with the movable cavity 15, and the lower end of the waste water pipe 18 is communicated with the inside of the treatment barrel 1. The liquid medicine in the medicine adding pipe 17 is first drawn into the movable cavity 15 as the piston 16 reciprocates, and then is introduced into the waste water pipe 18 through the connecting pipe 19 and directly mixed with the waste water.

[0029] It should be noted that the present utility model is a chemical hardening removal device for chemical industrial waste water. When in use, the motor 9 is started, and the stirring shaft 2 is driven to rotate by the meshing characteristics of the two gears 10, and then the stirring blades 3 are driven to rotate. At the same time, the motor 9 will drive the driving disc 11 to rotate, and then drive the piston 16 to reciprocate in the movable cavity 15 through the rotationally connected first connecting rod 12 and second connecting rod 13. When the piston 16 moves away from the connecting pipe 19, the first valve 20 opens and the second valve 21 closes, and the liquid medicine in the medicine adding pipe 17 is drawn into the movable cavity 15. Then the piston 16 returns to move toward the connecting pipe 19, the first valve 20 closes, the second valve 21 opens, and the liquid medicine enters the waste water pipe 18 through the connecting pipe 19, is directly mixed with the waste water and then enters the treatment barrel 1, and then is stirred by the stirring blades 3, which can effectively improve the mixing efficiency;

[0030] When the stirring shaft 2 rotates, it will drive the two guide plates 5 to rotate followingly through the mounting plate 4, and then drive the scraping plate 6 to scrape and clean the inner wall of the treatment barrel 1 to avoid the adhesion of sundries. At the same time, with the mutual cooperation of the telescopic pin 7 and the spring 8, it can ensure that the scraping plate 6 always fits the inner wall of the treatment barrel 1 to maintain the cleaning effect.

[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A chemical wastewater chemical de-hardening device, comprising a treatment barrel (1), characterized in that: A stirring shaft (2) is rotatably connected to the middle of the top plate of the processing barrel (1), and a stirring blade (3) is fixedly connected to the outer wall of the stirring shaft (2). A motor (9) and a mixing box (14) are fixedly arranged on the upper end surface of the processing barrel (1), and a driving disk (11) is fixedly sleeved on the upper end of the output shaft of the motor (9). A connecting rod (12) is rotatably connected to the upper end of the driving disk (11) near the side. A movable cavity (15) is provided on one side of the mixing box (14), and a movable cavity (15) is provided inside the movable cavity (15). A piston (16) is slidably sleeved, one end of the piston (16) is fixedly connected to a second connecting rod (13), the first connecting rod (12) and the second connecting rod (13) are rotatably connected, a dosing pipe (17) and a waste water pipe (18) are respectively fixedly sleeved on the mixing box (14), a valve first (20) is rotatably connected inside the dosing pipe (17), a connecting pipe (19) is fixedly connected between the waste water pipe (18) and the movable chamber (15), and a valve second (21) is rotatably connected inside the connecting pipe (19).

2. A chemical wastewater chemical hardness removal device according to claim 1, characterized in that: Mounting plates (4) are fixedly connected to the outer walls on both sides of the stirring shaft (2); guide plates (5) are fixedly connected to the lower end surfaces of the two mounting plates (4); scrapers (6) are slidably sleeved on one side of the two guide plates (5); and the two scrapers (6) are slidably fitted to the inner wall of the processing barrel (1).

3. A chemical wastewater chemical hardness removal device according to claim 2, characterized in that: A plurality of telescopic pins (7) and a plurality of springs (8) are fixedly connected to the inner walls of the two guide plates (5), one end of the plurality of telescopic pins (7) and the plurality of springs (8) are fixedly connected to the outer wall of the scraper plate (6), and the plurality of springs (8) are movably sleeved on the outer ends of the plurality of telescopic pins (7).

4. A chemical wastewater chemical hardness removal device according to claim 1, characterized in that: Gears (10) are fixedly sleeved on the outer walls of the output shaft of the motor (9) and the stirring shaft (2), and the two gears (10) are meshed with each other.

5. The chemical wastewater chemical de-hardening device according to claim 1, characterized in that: The valve plate of the valve one (20) is rotated downward to open, and the valve plate of the valve two (21) is opened toward the side of the waste water pipe (18).

6. The chemical wastewater chemical hardness removal device according to claim 1, characterized in that: A discharge pipe (22) is fixedly connected to one side of the processing barrel (1) close to the lower end, and a solenoid valve is rotatably provided on the discharge pipe (22).

7. The chemical wastewater chemical hardness removal device according to claim 1, characterized in that: The lower end of the dosing pipe (17) is connected to the active chamber (15), and the lower end of the waste water pipe (18) is connected to the interior of the treatment barrel (1).

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