Pretreatment device for printing and dyeing wastewater

Abstract

The utility model relates to the technical field of printing and dyeing wastewater treatment, in particular to a pretreatment device for printing and dyeing wastewater, and solves the problems that in the prior art, the printing and dyeing wastewater is directly discharged into treatment equipment to be treated, measures for pretreating the printing and dyeing wastewater are lacked, and then the subsequent printing and dyeing wastewater treatment efficiency is influenced. A pretreatment device for printing and dyeing wastewater comprises a frame body, the inner side of the frame body is fixedly connected with a water tank, the top of the water tank is provided with a filter plate slidably connected with the frame body, the top of the frame body is fixedly connected with a top frame, the inner side of the top frame is fixedly connected with a water outlet pipe, and one side of the outer wall of the frame body is fixedly connected with a fixing plate. And one side of the bottom of the fixed plate is fixedly connected with an air cylinder through a bolt. According to the mode provided by the utility model, the wastewater is filtered through the filter plate, and the filtered wastewater is discharged along the water tank, so that sediment is prevented from being pumped out, the pretreatment work of the wastewater can be realized, and the practicability is very high.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and dyeing wastewater treatment, in particular to a pretreatment device for printing and dyeing wastewater. Background Art

[0002] Printing and dyeing wastewater is mainly generated in the textile printing and dyeing industry. The water volume is large: a large amount of water is required to dilute dyes and auxiliaries during the printing and dyeing process, so the wastewater discharge is very large. The organic matter content is high: the wastewater contains dyes, sizing agents, auxiliaries, oil agents, acids and alkalis, fiber impurities, sand substances, inorganic salts, etc., resulting in a relatively high organic matter content. The chroma is high: due to the use of dyes, the wastewater usually has a very high chroma. The alkalinity is large: printing and dyeing wastewater is usually alkaline, and the pH value may be as high as over 10. The water quality varies greatly: due to different printing and dyeing processes and fiber types used, the water quality of the wastewater will vary greatly. Physical methods: including methods such as filtration and sedimentation, which are mainly used to remove suspended solids and impurities in the wastewater. Chemical methods: remove harmful substances in the wastewater through chemical reactions, such as using oxidants to decompose organic matter. Biological methods: use microorganisms to degrade organic matter in the wastewater, and the commonly used ones are the activated sludge method and the biofilm method. The treatment economic load is heavy: the current treatment methods have a large floor area, require a lot of investment, and the treatment costs are high. The components are complex and changeable: the pollutant components in printing and dyeing wastewater are very complex and show irregular changes with market changes, seasonal replacements, etc.

[0003] When treating printing and dyeing wastewater, due to the great treatment difficulty, especially the need to ensure the efficiency of subsequent treatment of printing and dyeing wastewater. However, considering that in the prior art, printing and dyeing wastewater is directly discharged into the treatment equipment for treatment, lacking measures for pretreatment of printing and dyeing wastewater, which will affect the efficiency of subsequent treatment of printing and dyeing wastewater, it is extremely inconvenient. Therefore, there is an urgent need for a pretreatment device for printing and dyeing wastewater to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pretreatment device for printing and dyeing wastewater, which solves the problem that in the prior art, printing and dyeing wastewater is directly discharged into the treatment equipment for treatment, lacking measures for pretreatment of printing and dyeing wastewater, which will affect the efficiency of subsequent treatment of printing and dyeing wastewater.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A pretreatment device for printing and dyeing wastewater, comprising a frame body. Inside the frame body, a water tank is fixedly connected. And at the top of the water tank, a filter plate slidably connected to the frame body is provided. At the top of the frame body, a top frame is fixedly connected. And inside the top frame, a water outlet pipe is fixedly connected. On one side of the outer wall of the frame body, a fixed plate is fixedly connected. And at one side of the bottom of the fixed plate, a cylinder is fixedly connected by bolts. And a fixed connection is made between the output shaft of the cylinder and the top of the filter plate. On one side of the water tank, an external connecting pipe is communicated. And one end of the external connecting pipe penetrates through the side wall of the frame body.

[0007] Preferably, both sides of the filter plate are fixedly connected with sliders. And both sliders are slidably connected with the inner wall of the frame body through chutes.

[0008] Preferably, on one side of the top of the filter plate, a connecting rod is fixedly connected. And the extended end of the connecting rod is fixedly connected with the output shaft of the cylinder.

[0009] Preferably, on the top of the top frame, a water inlet pipe is provided. And the bottom end of the water inlet pipe penetrates through the top frame and is communicated with the top of the water outlet pipe.

[0010] Preferably, the connection between the output shaft of the cylinder and the fixed plate is a sliding connection.

[0011] Preferably, on one side of the lower part of the frame body, a first door body is rotatably connected by a hinge. And on one side of the upper part of the frame body, a second door body is rotatably connected by a hinge.

[0012] The utility model has at least the following beneficial effects:

[0013] When the pretreatment device for printing and dyeing wastewater of the utility model is in use, first, the wastewater to be pretreated is injected into the frame body through the water outlet pipe. The wastewater first passes through the filter plate for filtration. At the same time, it then falls to the lower part inside the frame body for precipitation. At the same time, the wastewater can be discharged along the water tank. At this time, the flushing water will only be discharged from the water tank and will not directly flow out from the bottom inside the frame body, avoiding the extraction of the sediment. And the cylinder can be started to drive the filter plate to move upward, facilitating the separation of the filtered impurities from the wastewater. The subsequent wastewater treatment work is carried out according to the same principle. Compared with the prior art in which the printing and dyeing wastewater is directly discharged into the treatment equipment for treatment, lacking measures for pretreating the printing and dyeing wastewater, which will affect the efficiency of subsequent printing and dyeing wastewater treatment. The method proposed in the utility model filters the wastewater through the filter plate and discharges the filtered wastewater along the water tank, avoiding the extraction of the sediment, so as to realize the pretreatment work of the wastewater and has high practicability. Description of the Drawings

[0014] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic front view structure diagram of the whole of the present utility model;

[0016] Figure 2 It is a schematic top view structure diagram of the present utility model;

[0017] Figure 3 It is a schematic inner side structure diagram of the present utility model;

[0018] Figure 4 It is a schematic filter plate structure diagram of the present utility model;

[0019] Figure 5 It is a schematic water tank structure diagram of the present utility model.

[0020] In the figure: 1. Frame body; 2. First door body; 3. Second door body; 4. Slide groove; 5. Top frame; 6. Water outlet pipe; 7. Fixed plate; 8. Cylinder; 9. Connecting rod; 10. Water inlet pipe; 11. Filter plate; 12. Water tank; 13. Slide block; 14. Outer connecting pipe. Specific embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Refer to Figures 1-5 , a pretreatment device for printing and dyeing wastewater, including a frame body 1. The inner side of the frame body 1 is fixedly connected with a water tank 12, and a filter plate 11 slidably connected to the frame body 1 is arranged at the top of the water tank 12. The top of the frame body 1 is fixedly connected with a top frame 5, and a water outlet pipe 6 is fixedly connected to the inner side of the top frame 5. One side of the outer wall of the frame body 1 is fixedly connected with a fixed plate 7, and a cylinder 8 is fixedly connected to the bottom side of the fixed plate 7 through bolts. And a fixed connection is established between the output shaft of the cylinder 8 and the top of the filter plate 11. One side of the water tank 12 is communicated with an outer connecting pipe 14, and one end of the outer connecting pipe 14 penetrates through the side wall of the frame body 1. Specifically, the wastewater is filtered by the filter plate 11, and at the same time, the filtered wastewater is discharged along the water tank 12, avoiding pumping out the sediment, so as to realize the pretreatment work of the wastewater, which has high practicability.

[0023] This solution has the following working process:

[0024] When the pretreatment device for printing and dyeing wastewater of the utility model is in use, first, the wastewater to be pretreated is injected into the frame body 1 through the water outlet pipe 6. The wastewater first passes through the filter plate 11 for filtration. At the same time, it then falls to the lower part inside the frame body 1 for precipitation. At the same time, the wastewater can be discharged along the water tank 12. At this time, the flushing water will only come out from the water tank 12 and will not directly come out from the inner bottom of the frame body 1, avoiding the extraction of the sediment. And the air cylinder 8 can be started to drive the filter plate 11 to move upward, facilitating the separation of the filtered impurities from the wastewater. The subsequent wastewater treatment work is carried out according to the same principle.

[0025] According to the above working process, it can be known that:

[0026] The wastewater is filtered by the filter plate 11, and at the same time, the filtered wastewater is discharged along the water tank 12, avoiding the extraction of the sediment, so as to realize the pretreatment work of the wastewater, which has high practicability.

[0027] Furthermore, both sides of the filter plate 11 are fixedly connected with sliders 13, and both sliders 13 are slidably connected with the inner wall of the frame body 1 through the sliding grooves 4. Specifically, by using the sliders 13 to slide in the sliding grooves 4, the stability of the filter plate 11 during the up and down movement can be enhanced.

[0028] Furthermore, one side of the top of the filter plate 11 is fixedly connected with a connecting rod 9, and the extending end of the connecting rod 9 is fixedly connected with the output shaft of the air cylinder 8. Specifically, by using the connecting rod 9, the air cylinder 8 can drive the filter plate 11 to move up and down.

[0029] Furthermore, a water inlet pipe 10 is provided at the top of the top frame 5, and the bottom end of the water inlet pipe 10 passes through the top frame 5 and is communicated with the top of the water outlet pipe 6.

[0030] Furthermore, the connection between the output shaft of the air cylinder 8 and the fixed plate 7 is a sliding connection.

[0031] Furthermore, one side of the lower part of the frame body 1 is rotatably connected with a first door body 2 through a hinge, and one side of the upper part of the frame body 1 is rotatably connected with a second door body 3 through a hinge. Specifically, the first door body 2 and the second door body 3 are opened to clean the inside of the frame body 1.

[0032] To sum up: By using the sliders 13 to slide in the sliding grooves 4, the stability of the filter plate 11 during the up and down movement can be enhanced. By using the connecting rod 9, the air cylinder 8 can drive the filter plate 11 to move up and down. The first door body 2 and the second door body 3 are opened to clean the inside of the frame body 1.

[0033] The foregoing 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, and what is described in the above embodiments and the specification is only the principle 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 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 pretreatment device for printing and dyeing wastewater, comprising a frame body (1), characterized in that, A water tank (12) is fixedly connected to the inner side of the frame body (1), and a filter plate (11) which is slidably connected to the frame body (1) is arranged at the top of the water tank (12). A top frame (5) is fixedly connected to the top of the frame body (1), and a water outlet pipe (6) is fixedly connected to the inner side of the top frame (5). A fixing plate (7) is fixedly connected to one side of the outer wall of the frame body (1), and an air cylinder (8) is fixedly connected to the bottom side of the fixing plate (7) through a bolt. Moreover, a fixed connection is provided between the output shaft of the air cylinder (8) and the top of the filter plate (11). One side of the water tank (12) is communicated with an external connecting pipe (14), and one end of the external connecting pipe (14) penetrates through the side wall of the frame body (1).

2. The pretreatment device for printing and dyeing wastewater according to claim 1, characterized in that, Sliders (13) are fixedly connected to both sides of the filter plate (11), and both sliders (13) are slidably connected to the inner wall of the frame body (1) through sliding grooves (4).

3. The pretreatment device for printing and dyeing wastewater according to claim 2, characterized in that, A connecting rod (9) is fixedly connected to one side of the top of the filter plate (11), and the extending end of the connecting rod (9) is fixedly connected to the output shaft of the air cylinder (8).

4. A pretreatment device for printing and dyeing wastewater according to claim 1, wherein, A water inlet pipe (10) is arranged at the top of the top frame (5), and the bottom end of the water inlet pipe (10) penetrates through the top frame (5) and is communicated with the top of the water outlet pipe (6).

5. The pretreatment device for printing and dyeing wastewater according to claim 1, characterized in that, The connection between the output shaft of the air cylinder (8) and the fixing plate (7) is a sliding connection.

6. The pretreatment device for printing and dyeing wastewater according to claim 1, wherein, A first door body (2) is rotatably connected to one side of the lower part of the frame body (1) through a hinge, and a second door body (3) is rotatably connected to one side of the upper part of the frame body (1) through a hinge.

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