Shunting pretreatment equipment for printing and dyeing wastewater

Abstract

The utility model relates to shunting pretreatment equipment for printing and dyeing wastewater, which comprises a filter box, a cover plate is arranged at the top end of the filter box, a plurality of through pipes are arranged in the cover plate in a penetrating manner, the through pipes are connected with pretreatment cylinders, one side surface of each pretreatment cylinder is connected with a material conveying pipe, an electromagnetic valve is arranged outside the material conveying pipe, and the electromagnetic valve is connected with the filter box. A flow meter is arranged on one side of the electromagnetic valve, the material conveying pipe is connected with a storage barrel, a push plate is arranged in the storage barrel and connected with a push rod, and an electric push rod is arranged on one side face of the push rod and connected with a supporting seat; the problems that reagents need to be manually added during pretreatment in the equipment, pretreatment is affected due to inaccurate materials, and meanwhile the filtering effect is affected due to the fact that a filtering plate needs to be cleaned and replaced after being used for a long time during filtering treatment in a fine grid are solved.

Description

Technical Field

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

[0002] The wastewater discharged from printing and dyeing, wool weaving and dyeing finishing, silk factories, etc., mainly processing cotton, linen, chemical fibers and their blended products, silk, is called printing and dyeing wastewater. Due to different fiber types and processing technologies, the water volume and water quality of printing and dyeing wastewater are also different. The water quality characteristics of printing and dyeing wastewater usually include large water volume, high chroma, complex composition, large water quality fluctuations, etc. The sewage discharged from some printing products contains a large amount of toxic substances. Therefore, it is necessary to preliminarily treat the wastewater by physical, chemical or biological methods to remove the harmful substances therein, reduce the load on the subsequent treatment equipment, and ensure that the wastewater will not cause harm to the environment and human health.

[0003] Moreover, a shunt pre-treatment device for printing and dyeing wastewater is mentioned in the document with the publication number CN207468407U. This device separately connects the wastewater from different processes to different pre-treatment ponds, adds different treatment reagents to the pre-treatment ponds respectively, sends the pre-treated wastewater into a fine grille for filtration treatment, and then sends it into an adjustment pond to adjust the pH value and water quality of the wastewater by adding reagents, and adjusts the temperature of the wastewater through the cooling fan on the top plate, and then sends it into a contact flocculation pond, a primary sedimentation pond, an air flotation reactor, a PH adjustment pond, a hydrolysis acidification pond, a contact oxidation pond, a secondary sedimentation pond for treatment. Finally, through the activated sludge method and membrane separation technology of a membrane bioreactor, it is sent to the workshop for use as rinsing water. In actual application experiments, compared with other products in the same field on the market, the performance of this design is about % higher than theirs, but there are still certain defects that need to be optimized. The specific defects are as follows: When adding reagents during pre-treatment in this device, manual addition is required, and inaccurate use of materials will affect pre-treatment. At the same time, when filtering in the fine grille, the filter plate needs to be cleaned and replaced after long-term use, otherwise the filtering effect will be affected.

[0004] Therefore, it is particularly important to design a shunt pre-treatment device for printing and dyeing wastewater to change the above technical defects and improve the overall practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shunt pre-treatment device for printing and dyeing wastewater to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A shunt pretreatment device for printing and dyeing wastewater, comprising a filtration tank, a cover plate is arranged at the top of the filtration tank, several through pipes are penetrated inside the cover plate, the through pipes are connected to a pretreatment cylinder, one side surface of each pretreatment cylinder is connected to a feeding pipe, an electromagnetic valve is arranged outside the feeding pipe, a flow meter is arranged on one side of the electromagnetic valve, the feeding pipe is connected to a storage cylinder, a push plate is arranged inside the storage cylinder, the push plate is connected to a push rod, an electric push rod is arranged on one side surface of the push rod, and the electric push rod is connected to a support seat;

[0008] An electric telescopic rod is arranged at the top of the cover plate, a baffle is arranged at the output end of the electric telescopic rod, a filter plate is arranged inside the filtration tank, sliders are symmetrically arranged at the bottom end of the filter plate, sliding grooves are symmetrically arranged inside the filtration tank, a cleaning brush is arranged at the top of the filter plate, the cleaning brush is connected to a lead screw nut, a lead screw is arranged inside the lead screw nut, the lead screw is connected to a driving motor, a guide rod is arranged at the other end of the cleaning brush, and a vacuum cleaner is arranged outside the filtration tank;

[0009] The filtration tank is connected to an adjustment tank, the adjustment tank is connected to a contact flocculation tank, the contact flocculation tank is connected to a primary sedimentation tank, the primary sedimentation tank is connected to a flotation reactor, the flotation reactor is connected to a pH adjustment tank, the pH adjustment tank is connected to a hydrolysis acidification tank, the hydrolysis acidification tank is connected to a contact oxidation tank, the contact oxidation tank is connected to a secondary sedimentation tank, and the secondary sedimentation tank is connected to a membrane bioreactor.

[0010] As a preferred scheme of the present utility model, the cover plate and the filtration tank are connected by bolts, a scale for observation is arranged on the surface of the storage cylinder, a feeding port is arranged on the storage cylinder, and a cover cylinder is arranged outside the feeding port.

[0011] As a preferred scheme of the present utility model, a sealing gasket for sealing is arranged on one side surface of the baffle, a slot is arranged on one side surface of the filtration tank, a maintenance door is arranged outside the filtration tank, a sealing ring is arranged on the side surface of the maintenance door in contact with the filtration tank, and the maintenance door and the filtration tank are connected by a buckle.

[0012] As a preferred scheme of the present utility model, the filter plate and the filtration tank are slidably connected, the driving motor is connected to the lead screw through a coupling, and one end of the lead screw is connected to the filtration tank through a bearing seat.

[0013] As a preferred scheme of the present utility model, both ends of the guide rod are fixedly connected to the filtration tank, and the cleaning brush and the guide rod are slidably connected.

[0014] As a preferred scheme of the present utility model, the secondary sedimentation tank is connected to the membrane bioreactor through a pipeline, a flow detector is arranged outside the pipeline, and a conveying pipe is arranged at the top of the pretreatment cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, a diversion pre-treatment device for printing and dyeing wastewater is provided. By using the structure of a cover plate, a storage cylinder, a push plate, an electric push rod, a flowmeter, a solenoid valve, a lead screw, a guide rod, a lead screw nut, and a cleaning brush, wastewater is transported through a delivery pipe into a pre-treatment cylinder. After preliminary treatment and reagent addition, it flows into a filter box. The filter plate filters the wastewater. The cleaning brush cleans the filter plate driven by a driving motor, and a vacuum cleaner collects waste. After filtration, the wastewater enters an adjustment tank for water quality adjustment, and then undergoes in-depth treatment, solving the problems that in the pre-treatment of this device, manual addition of reagents is required, resulting in inaccurate material usage and affecting pre-treatment. At the same time, when filtering in a fine grille, the filter plate needs to be cleaned and replaced after long-term use, otherwise the filtering effect will be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a planar process structure diagram of the overall diversion pre-treatment of the present utility model;

[0018] Figure 2 is a schematic diagram of the storage cylinder assembly of the present utility model;

[0019] Figure 3 is a planar structure schematic diagram of the filter box assembly of the present utility model;

[0020] Figure 4 is a structure diagram of a part of the filter box assembly of the present utility model.

[0021] In the figure: 1. Filter box; 101. Adjustment tank; 102. Contact flocculation tank; 103. Primary sedimentation tank; 104. Air flotation reactor; 105. PH adjustment tank; 106. Hydrolysis acidification tank; 107. Contact oxidation tank; 108. Secondary sedimentation tank; 109. Membrane bioreactor; 2. Cover plate; 201. Through pipe; 202. Pre-treatment cylinder; 203. Feeding pipe; 204. Solenoid valve; 205. Flowmeter; 206. Storage cylinder; 207. Push plate; 208. Push rod; 209. Electric push rod; 210. Support seat; 3. Electric telescopic rod; 301. Baffle; 302. Filter plate; 303. Slide block; 304. Slide groove; 4. Cleaning brush; 401. Lead screw nut; 402. Lead screw; 403. Driving motor; 404. Guide rod; 405. Vacuum cleaner. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] For ease of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] For the embodiments, please refer to Figures 1-4 , the present utility model provides a technical solution:

[0027] A shunt pretreatment device for printing and dyeing wastewater, including a filtration tank 1, a cover plate 2 is provided at the top of the filtration tank 1, several through pipes 201 penetrate through the interior of the cover plate 2, the through pipes 201 are connected to a pretreatment cylinder 202, one side of each pretreatment cylinder 202 is connected to a feed pipe 203, an electromagnetic valve 204 is provided outside the feed pipe 203, a flow meter 205 is provided on one side of the electromagnetic valve 204, the feed pipe 203 is connected to a storage cylinder 206, a push plate 207 is provided inside the storage cylinder 206, the push plate 207 is connected to a push rod 208, an electric push rod 209 is provided on one side of the push rod 208, the electric push rod 209 is connected to a support seat 210, the printing and dyeing wastewater is sent to the pretreatment cylinder 202 through a delivery pipe for preliminary treatment of the wastewater, the flow is controlled by the electromagnetic valve 204 on the feed pipe 203, and the flow is monitored by the flow meter 205, and reagents are added to the interior of the treatment cylinder 202 by the push of the electric push rod 209 for treatment, and then the wastewater enters the filtration tank 1;

[0028] Wherein the cover plate 2 and the filtration tank 1 are connected by bolts, a scale for observation is provided on the surface of the storage cylinder 206, a feeding port is provided on the storage cylinder 206, and a cover cylinder is provided outside the feeding port, which is convenient for adding reagents.

[0029] In this embodiment, please refer to Figure 1 and Figure 3 and Figure 4 ., an electric telescopic rod 3 is provided at the top of the cover plate 2, a baffle 301 is provided at the output end of the electric telescopic rod 3, a filter plate 302 is provided inside the filtration tank 1, sliding blocks 303 are symmetrically provided at the bottom end of the filter plate 302, sliding grooves 304 are symmetrically provided inside the filtration tank 1, a cleaning brush 4 is provided at the top of the filter plate 302, the cleaning brush 4 is connected to a lead screw nut 401, a lead screw 402 is provided inside the lead screw nut 401, the lead screw 402 is connected to a drive motor 403, a guide rod 404 is provided at the other end of the cleaning brush 4, a vacuum cleaner 405 is provided outside the filtration tank 1, the filter plate 302 inside the filtration tank 1 filters the wastewater. In order to keep the filter plate 302 clean, the lead screw nut can be driven by the drive motor 403 to reciprocate along the lead screw 402, and at the same time, the guide rod 404 ensures the stable movement of the cleaning brush 4, the cleaning brush 4 cleans the filter plate 302, and at the same time, the electric telescopic rod 3 is started to drive the baffle 301 to move upward, exposing the vacuum cleaner 405, and the vacuum cleaner 405 collects the waste generated during the cleaning process. After the preliminary filtration, the wastewater enters the regulation tank 101;

[0030] One side of the baffle 301 is provided with a gasket for sealing, and one side of the filter tank 1 is provided with a slot. An inspection door is provided outside the filter tank 1. One side of the inspection door in contact with the filter tank 1 is provided with a sealing ring. The inspection door and the filter tank 1 are connected by a lock catch to facilitate maintaining a sealed state. The filter plate 302 is slidably connected to the filter tank 1. The driving motor 403 is connected to the lead screw 402 through a coupling. One end of the lead screw 402 is connected to the filter tank 1 through a bearing seat to facilitate driving the cleaning brush to clean the filter plate. Both ends of the guide rod 404 are fixedly connected to the filter tank 1. The cleaning brush 4 is slidably connected to the guide rod 404 to facilitate the directional movement of the cleaning brush.

[0031] In this embodiment, please refer to Figure 1 , the filter tank 1 is connected to the regulation tank 101, the regulation tank 101 is connected to the contact flocculation tank 102, the contact flocculation tank 102 is connected to the primary sedimentation tank 103, the primary sedimentation tank 103 is connected to the air flotation reactor 104, the air flotation reactor 104 is connected to the pH regulation tank 105, the pH regulation tank 105 is connected to the hydrolysis acidification tank 106, the hydrolysis acidification tank 106 is connected to the contact oxidation tank 107, the contact oxidation tank 107 is connected to the secondary sedimentation tank 108, the secondary sedimentation tank 108 is connected to the membrane bioreactor 109. The wastewater passes through the contact flocculation tank 102, the primary sedimentation tank 103, the air flotation reactor 104, the pH regulation tank 105, the hydrolysis acidification tank 106, and the contact oxidation tank 107 in sequence for advanced treatment. In each treatment tank, the pollutants in the wastewater are gradually removed, and the water quality is significantly improved. Finally, the wastewater enters the secondary sedimentation tank 108 for the final sedimentation treatment, and then enters the membrane bioreactor 109 through a pipeline for biological membrane reaction treatment to further purify the water quality;

[0032] Among them, the secondary sedimentation tank 108 is connected to the membrane bioreactor 109 through a pipeline, and a flow detector is provided outside the pipeline. A delivery pipe is provided at the top of the pretreatment cylinder 202 to facilitate the delivery of the detected wastewater.

[0033] Working process of the utility model: When using this kind of shunt pre-treatment equipment for printing and dyeing wastewater, first, the printing and dyeing wastewater is sent to the pre-treatment cylinder 202 through the conveying pipe for preliminary treatment of the wastewater. The flow rate is controlled by the solenoid valve 204 on the feeding pipe 203, and the flow rate is monitored by the flow meter 205. Reagents are added to the inside of the treatment cylinder 202 by the push of the electric push rod 209 for treatment. Subsequently, the wastewater enters the filter box 1, and the filter plate 302 filters the wastewater. In order to keep the filter plate 302 clean, the driving motor 403 can drive the screw nut to reciprocate along the screw rod 402. At the same time, the guide rod 404 ensures the stable movement of the cleaning brush 4, and the cleaning brush 4 cleans the filter plate 302. At the same time, the electric telescopic rod 3 is started to drive the baffle 301 to move upward, exposing the vacuum cleaner 405, and the vacuum cleaner 405 collects the waste generated during the cleaning process. After the preliminary filtration, the wastewater enters the regulation pool 101 for water quality regulation. Subsequently, the wastewater sequentially passes through the contact flocculation tank 102, the primary sedimentation tank 103, the air flotation reactor 104, the pH adjustment tank 105, the hydrolysis acidification tank 106, and the contact oxidation tank 107 for in-depth treatment. In each treatment tank, the pollutants in the wastewater are gradually removed, and the water quality is significantly improved. Finally, the wastewater enters the secondary sedimentation tank 108 for the final sedimentation treatment, and then enters the membrane bioreactor 109 through the pipeline for biofilm reaction treatment to further purify the water quality. During the whole treatment process, the various treatment units are connected by pipelines. The flow detection meter monitors the flow rate in real time, and the solenoid valve controls the discharge of the wastewater to ensure the treatment efficiency and the stability of the water quality. Among them, the in-depth treatment of the contact flocculation tank 102, the primary sedimentation tank 103, the air flotation reactor 104, the pH adjustment tank 105, the hydrolysis acidification tank 106, and the contact oxidation tank 107 is an existing mature technology, so its principle, chemical reaction, pipeline connection, solenoid valve setting, and flow meter setting will not be elaborated.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A shunt pretreatment device for printing and dyeing wastewater, comprising a filtration tank (1), characterized in that: The top of the filter box (1) is provided with a cover plate (2). Inside the cover plate (2), a number of through pipes (201) are penetrated. The through pipes (201) are connected to the pretreatment cylinder (202). One side of each pretreatment cylinder (202) is connected to a feeding pipe (203). An electromagnetic valve (204) is arranged outside the feeding pipe (203). A flow meter (205) is arranged on one side of the electromagnetic valve (204). The feeding pipe (203) is connected to a storage cylinder (206). Inside the storage cylinder (206), there is a push plate (207). The push plate (207) is connected to a push rod (208). An electric push rod (209) is arranged on one side of the push rod (208). The electric push rod (209) is connected to a support seat (210). An electric telescopic rod (3) is arranged on the top of the cover plate (2). The output end of the electric telescopic rod (3) is provided with a baffle plate (301). Inside the filter box (1), there is a filter plate (302). Symmetrically arranged sliders (303) are provided at the bottom end of the filter plate (302). Symmetrically arranged chutes (304) are provided inside the filter box (1). A cleaning brush (4) is arranged on the top of the filter plate (302). The cleaning brush (4) is connected to a lead screw nut (401). Inside the lead screw nut (401), there is a lead screw (402). The lead screw (402) is connected to a driving motor (403). A guide rod (404) is arranged at the other end of the cleaning brush (4). A vacuum cleaner (405) is arranged outside the filter box (1). The filter box (1) is connected to an adjustment tank (101). The adjustment tank (101) is connected to a contact flocculation tank (102). The contact flocculation tank (102) is connected to a primary sedimentation tank (103). The primary sedimentation tank (103) is connected to a flotation reactor (104). The flotation reactor (104) is connected to a pH adjustment tank (105). The pH adjustment tank (105) is connected to a hydrolysis acidification tank (106). The hydrolysis acidification tank (106) is connected to a contact oxidation tank (107). The contact oxidation tank (107) is connected to a secondary sedimentation tank (108). The secondary sedimentation tank (108) is connected to a membrane bioreactor (109).

2. The shunt pretreatment equipment for printing and dyeing wastewater according to claim 1, characterized in that: The cover plate (2) and the filter box (1) are connected by bolts. A scale for observation is provided on the surface of the storage cylinder (206). A feeding port is provided on the storage cylinder (206), and a cover cylinder is arranged outside the feeding port.

3. The shunt pretreatment equipment for printing and dyeing wastewater according to claim 1, characterized in that: A sealing gasket for sealing is arranged on one side of the baffle plate (301). A slot is arranged on one side of the filter box (1). An inspection door is arranged outside the filter box (1). A sealing ring is arranged on the side surface of the inspection door in contact with the filter box (1). The inspection door and the filter box (1) are connected by a lock catch.

4. The shunt pre-treatment equipment for printing and dyeing wastewater according to claim 1, characterized in that: The filter plate (302) and the filter box (1) are in sliding connection. The driving motor (403) is connected to the lead screw (402) through a coupling. One end of the lead screw (402) is connected to the filter box (1) through a bearing seat.

5. A pre-treatment device for diverting printing and dyeing wastewater according to claim 1, characterized in that: Both ends of the guiding rod (404) are fixedly connected to the filtration tank (1), and the cleaning brush (4) is slidably connected to the guiding rod (404).

6. A pre-treatment device for the diversion of printing and dyeing wastewater according to claim 1, characterized in that: The secondary sedimentation tank (108) is connected to the membrane bioreactor (109) through a pipeline, and a flow detector is provided outside the pipeline. A delivery pipe is provided at the top of the pretreatment cylinder (202).

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