Printing and dyeing wastewater treatment device

Abstract

The utility model discloses a printing and dyeing wastewater treatment device which is characterized in that sludge is not easy to accumulate at one end, close to a water inlet pipe, of a tank body due to the existence of an aeration machine, and at the moment, a chamber protruding downwards is arranged at one end, close to a water outlet end, of the tank body, so that the sludge is easier to accumulate; then the sludge discharge pump is regularly opened, so that the accumulated sludge (carrying waste water) is pumped into the collection hopper and discharged through the sewage discharge pipe of the collection hopper, at the moment, the sludge in the collection hopper is too large, the sewage discharge pipe is possibly blocked, dredging can be conducted through the dredging assembly, and a protruding part protruding out of the pool body is arranged on the collection hopper; and a mounting position can be provided for the arrangement of the dredging assembly.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing technology, and in particular to a device for treating printing and dyeing wastewater. Background Technology

[0002] Dyeing and printing wastewater contains large amounts of dyes, auxiliaries, heavy metals, and organic matter. Direct discharge of such wastewater can severely pollute the environment and harm the ecosystem and human health. Air flotation (AF) tanks utilize a bubble system with numerous microbubbles in the water. These microbubbles attach to suspended solids, creating a density less than water, which allows the solids to float on the surface, thus achieving solid-liquid separation. For example, Chinese patent CNCN208603756U, published on March 15, 2019, discloses "An Air Flotation Machine for a Domestic Sewage Treatment System."

[0003] During use, the sludge on the surface of the flotation tank is scraped into the collection hopper by the sludge discharge mechanism and discharged through the sewage pipe. However, some sludge will settle at the bottom of the flotation tank over a long period of time, which requires regular cleaning of the sludge at the bottom, making it inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a dyeing and printing wastewater treatment device that facilitates the treatment of sludge deposited at the bottom of the pool.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dyeing and printing wastewater treatment device, comprising a pool body, an inlet pipe disposed at one end of the pool body, an aerator disposed at one end of the pool body and close to the inlet pipe, a sludge discharge mechanism disposed at the upper middle part of the pool body, a collection hopper disposed at the other end of the pool body for collecting sludge scraped from the sludge discharge mechanism, an outlet pipe disposed at the other end of the pool body, and a sewage discharge pipe disposed at the bottom of the collection hopper. The bottom of the pool body near the outlet pipe is provided with a downward protruding chamber for sludge accumulation. A sludge discharge pump communicating with the bottom of the chamber is provided at the bottom of the chamber. A sludge discharge pipe for transporting sludge into the collection hopper is disposed between the outlet of the sludge discharge pump and the collection hopper. The collection hopper is provided with a protrusion protruding from the end of the pool body near the outlet pipe. The sewage discharge pipe is located at the bottom of the protrusion and is vertically downward. The bottom of the collection hopper protrudes downward at an angle. A dredging component for unblocking the sewage discharge pipe is provided at the top of the protrusion.

[0006] By adopting the above technical solution, firstly, because of the presence of an aerator at the end of the pool near the inlet pipe, sludge is less likely to accumulate at this end. At this time, a downward-protruding chamber is set at the end of the pool near the outlet, making it easier for sludge to accumulate. Then, the sludge pump is turned on periodically to draw the accumulated sludge (carrying wastewater) into the collection hopper and discharge it through the sewage pipe of the collection hopper. At this time, if the sludge in the collection hopper is too large, it may block the sewage pipe. This can be cleared by the unblocking component. Furthermore, by setting a protrusion on the collection hopper that protrudes from the pool body, a position is provided for the installation of the unblocking component.

[0007] A further feature of this invention is that the unblocking component includes a telescopic rod telescopically mounted on the upper surface of the protrusion, an unblocking end mounted at the lower end of the telescopic rod and capable of being embedded in the sewage pipe during downward movement, an elastic element mounted between the telescopic rod and the protrusion and driving the telescopic rod upward to disengage the unblocking end from the sewage pipe, and a pressing element mounted on the top of the pool body and the telescopic rod and driving the telescopic rod downward to drive the unblocking end into the sewage pipe.

[0008] By adopting the above technical solution, the pressing component presses down to overcome the elastic force of the elastic component, thereby driving the telescopic rod to move downward, so that the unblocking end is embedded in the sewage pipe for unblocking, thus avoiding the sewage pipe from being blocked.

[0009] A further feature of this invention is that the elastic element includes a connecting ring disposed on the telescopic rod and a compression spring sleeved on the telescopic rod with both ends pressed against the upper surface of the protrusion and the connecting ring.

[0010] By adopting the above technical solution, the elastic element includes a connecting ring set on the telescopic rod and a compression spring sleeved on the telescopic rod with both ends pressed against the upper surface of the protrusion and the connecting ring, so as to drive the telescopic rod to move upward, so as to drive the telescopic rod to move upward and drive the unblocking end to disengage from the sewage pipe.

[0011] A further feature of this invention is that the pressing component includes a pressing rod with one end hinged to the side of the pool body, a handle at the other end of the pressing rod, and a connecting sleeve at the upper end of the telescopic rod to keep the pressing rod in an embedded state during rotation.

[0012] By adopting the above technical solution, when the handle is pressed down, the pressing rod drives the telescopic rod to move downward, thereby driving the telescopic rod to move downward and drive the unblocking end into the sewage pipe for unblocking. The pressing part is designed to save effort during operation.

[0013] A further feature of this invention is that: the inlet end of the sludge pump is provided with a first three-way valve, one of the connectors of the first three-way valve is connected to the bottom of the chamber, the other connector of the first three-way valve is provided with a water supply pipe connected to the front side of the pool body, a water divider is provided at the connection between the sludge discharge pipe and the collection hopper, a second three-way valve is provided at the lower end of the sewage discharge pipe, and a return water pipe is provided between one of the connectors of the second three-way valve and the pool body.

[0014] By adopting the above technical solution, after the sludge in the chamber is discharged through the collection hopper and the sewage pipe, some sludge will remain in the sludge discharge pipe and the collection hopper. At this time, by connecting the first three-way valve to the water supply pipe and the second three-way valve to the water return pipe, the dyeing and printing wastewater is drawn into the collection hopper for flushing, and the flushed dyeing and printing wastewater flows back into the pool. The setting of the water distribution component can improve the flushing effect.

[0015] A further feature of this invention is that the water distribution component includes a main body connected to the sludge discharge pipe in the middle, and a plurality of branch pipes disposed between the main body and the collection hopper, with one end of each branch pipe extending obliquely downward into the collection hopper in a direction away from the sludge discharge mechanism.

[0016] By adopting the above technical solution, the water distribution component includes a main body connected to the sludge discharge pipe in the middle and multiple branch pipes set between the main body and the collection hopper to form multiple flushing points and improve the flushing effect; at the same time, one end of the branch pipe extends downwards into the collection hopper in a direction away from the sludge discharge mechanism, thereby preventing the sludge scraped by the sludge discharge mechanism from falling into the branch pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the pool body of this utility model.

[0019] Figure 3 yes Figure 2 A magnified view of the area located at point A.

[0020] Reference numerals: 1. Pool body; 1-1. Chamber; 2. Inlet pipe; 3. Aerator; 4. Sludge removal mechanism; 5. Collection hopper; 5-1. Protrusion; 6. Outlet pipe; 7. Sewage pipe; 8. Sludge pump; 9. Sludge pipe; 10. Unblocking component; 10-1. Telescopic rod; 10-2. Unblocking end; 10-3. Elastic element; 10-3-1. Connecting ring; 10-3-2. Compression spring; 10-4. Pressing element; 10-4-1. Pressing rod; 10-4-2. Handle; 10-4-3. Connecting sleeve; 11. First three-way valve; 12. Water supply pipe; 13. Water distribution component; 13-1. Main pipe body; 13-2. Branch pipe body; 14. Second three-way valve; 15. Return pipe. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings. 55-

[0022] Example: A dyeing and printing wastewater treatment device, such as Figure 1 and Figure 2 As shown, it includes a pool body 1, an inlet pipe 2 located at one end of the pool body 1, an aerator 3 located at one end of the pool body 1 and close to the inlet pipe 2, a sludge discharge mechanism 4 located above the middle of the pool body 1, a collection hopper 5 located at the other end of the pool body 1 for collecting sludge scraped from the sludge discharge mechanism 4, an outlet pipe 6 located at the other end of the pool body 1, and a sewage discharge pipe 7 located at the bottom of the collection hopper 5.

[0023] like Figures 1 to 3 As shown, the bottom of the pool body 1 near the outlet pipe 6 is provided with a downward protruding chamber 1-1 for sludge accumulation. The bottom of the chamber 1-1 is provided with a sludge discharge pump 8 communicating with the bottom of the chamber 1-1. A sludge discharge pipe 9 is provided between the outlet of the sludge discharge pump 8 and the collection hopper 5 to transport sludge into the collection hopper 5. The collection hopper 5 is provided with a protrusion 5-1 protruding from the end of the pool body 1 near the outlet pipe 6. The sewage pipe 7 is located at the bottom of the protrusion 5-1 and is set vertically downward. The bottom of the collection hopper 5 protrudes downward at an angle to the protrusion 5-1. A dredging component 10 for unblocking the sewage pipe 7 is provided at the top of the protrusion 5-1.

[0024] like Figure 2 and Figure 3 As shown, the unblocking assembly 10 includes a telescopic rod 10-1 telescopically disposed on the upper surface of the protrusion 5-1, an unblocking end 10-2 disposed at the lower end of the telescopic rod 10-1 and capable of being embedded into the drain pipe 7 during downward movement, an elastic member 10-3 disposed between the telescopic rod 10-1 and the protrusion 5-1 and driving the telescopic rod 10-1 upward movement to disengage the unblocking end 10-2 from the drain pipe 7, and a pressing member 10-4 disposed at the top of the pool body 1 and the telescopic rod 10-1 and driving the telescopic rod 10-1 downward movement to drive the unblocking end 10-2 into the drain pipe 7.

[0025] like Figure 3 As shown, the elastic element 10-3 includes a connecting ring 10-3-1 disposed on the telescopic rod 10-1, and a compression spring 10-3-2 sleeved on the telescopic rod 10-1 with both ends abutting against the upper surface of the protrusion 5-1 and the connecting ring 10-3-1. The pressing element 10-4 includes a pressing rod 10-4-1 with one end hinged to the side of the pool body 1, a handle 10-4-2 disposed at the other end of the pressing rod 10-4-1, and a connecting sleeve 10-4-3 disposed at the upper end of the telescopic rod 10-1 and for keeping the pressing rod 10-4-1 in an embedded state during rotation.

[0026] like Figure 1 and Figure 2 As shown, the inlet end of the sludge pump 8 is equipped with a first three-way valve 11. One of the connectors of the first three-way valve 11 is connected to the bottom of the chamber 1-1. The other connector of the first three-way valve 11 is equipped with a water supply pipe 12 connected to the front side of the tank body 1. A water distribution component 13 is provided at the connection between the sludge discharge pipe 9 and the collection hopper 5. A second three-way valve 14 is provided at the lower end of the sewage discharge pipe 7. A return water pipe 15 is provided between one of the connectors of the second three-way valve 14 and the tank body 1 (the connection of the return water pipe 15 is lower than the liquid level of the wastewater, and flow will be formed during the operation of the sludge pump 8 to allow the cleaning wastewater to flow back). The water distribution component 13 includes a main pipe body 13-1 connected to the sludge discharge pipe 9 in the middle, and multiple branch pipe bodies 13-2 disposed between the main pipe body 13-1 and the collection hopper 5. One end of the branch pipe body 13-2 extends downward at an angle away from the sludge discharge mechanism 4 into the collection hopper 5.

[0027] Implementation effect: First, because of the presence of the aerator 3 at the end of the pool 1 near the inlet pipe 2, sludge does not easily accumulate at the end of the pool 1 near the inlet. At this time, a downward protruding chamber 1-1 is set at the end of the pool 1 near the outlet, making it easier for sludge to accumulate. Then, the sludge pump 8 is turned on periodically to draw the accumulated sludge (carrying wastewater) into the collection hopper 5 and discharge it through the sewage pipe 7 of the collection hopper 5. At this time, if the sludge in the collection hopper 5 is too large, it may block the sewage pipe 7. It can be cleared by the unblocking component 10. The protrusion 5-1 on the collection hopper 5 that protrudes from the pool 1 provides a position for the installation of the unblocking component 10.

[0028] By pressing down with the pressing member 10-4 to overcome the elastic force of the elastic member 10-3, the telescopic rod 10-1 is driven to move downward, thereby allowing the unblocking end 10-2 to be embedded in the drain pipe 7 for unblocking, preventing the drain pipe 7 from becoming blocked. The elastic member 10-3 includes a connecting ring 10-3-1 disposed on the telescopic rod 10-1 and a compression spring 10-3-2 sleeved on the telescopic rod 10-1 with both ends pressed against the upper surface of the protrusion 5-1 and the connecting ring 10-3-1, so as to drive the telescopic rod 10-1 to move upward, so that after the telescopic rod 10-1 moves upward, it drives the unblocking end 10-2 to disengage from the drain pipe 7. When the handle 10-4-2 is pressed down, the pressing rod 10-4-1 drives the telescopic rod 10-1 to move downward, thereby driving the telescopic rod 10-1 to move downward and drive the unblocking end 10-2 into the sewage pipe 7 for unblocking. The setting of the pressing part 10-4 also has the function of saving effort in operation.

[0029] After the sludge in chamber 1-1 is discharged through the collection hopper 5 and the sewage pipe 7, some sludge will remain in the sludge discharge pipe 9 and the collection hopper 5. At this time, by connecting the first three-way valve 11 to the water supply pipe 12 and the second three-way valve 14 to the return water pipe 15, the dyeing wastewater is drawn into the collection hopper 5 for flushing, and the flushed dyeing wastewater flows back into the pool body 1. The setting of the water distribution component 13 can improve the flushing effect. The water distribution component 13 includes a main pipe body 13-1 connected to the sludge discharge pipe 9 in the middle and multiple branch pipe bodies 13-2 set between the main pipe body 13-1 and the collection hopper 5 to form multiple flushing points and improve the flushing effect; at the same time, one end of the branch pipe body 13-2 extends downward at an angle away from the sludge discharge mechanism 4 into the collection hopper 5, thereby preventing the sludge scraped by the sludge discharge mechanism 4 from falling into the branch pipe body 13-2.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A dyeing and printing wastewater treatment device, comprising a tank body (1), an inlet pipe (2) disposed at one end of the tank body (1), an aerator (3) disposed at one end of the tank body (1) and close to the inlet pipe (2), a sludge discharge mechanism (4) disposed above the middle part of the tank body (1), a collection hopper (5) disposed at the other end of the tank body (1) for collecting sludge scraped from the sludge discharge mechanism (4), an outlet pipe (6) disposed at the other end of the tank body (1), and a sewage discharge pipe (7) disposed at the bottom of the collection hopper (5), characterized in that: The bottom of the pool body (1) near the outlet pipe (6) is provided with a downward protruding chamber (1-1) for sludge accumulation. The bottom of the chamber (1-1) is provided with a sludge pump (8) communicating with the bottom of the chamber (1-1). A sludge discharge pipe (9) is provided between the outlet of the sludge pump (8) and the collection hopper (5) to transport sludge into the collection hopper (5). The collection hopper (5) is provided with a protrusion (5-1) protruding from the end of the pool body (1) near the outlet pipe (6). The sewage pipe (7) is located at the bottom of the protrusion (5-1) and is set vertically downward. The bottom of the collection hopper (5) extends downward at an angle to the protrusion (5-1). The top of the protrusion (5-1) is provided with a dredging component (10) for unblocking the sewage pipe (7).

2. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The unblocking assembly (10) includes a telescopic rod (10-1) telescopically disposed on the upper surface of the protrusion (5-1), an unblocking end (10-2) disposed at the lower end of the telescopic rod (10-1) and which can be embedded into the sewage pipe (7) during downward movement, an elastic member (10-3) disposed between the telescopic rod (10-1) and the protrusion (5-1) and which drives the telescopic rod (10-1) to move upward and then drives the unblocking end (10-2) to disengage from the sewage pipe (7), and a pressing member (10-4) disposed at the top of the pool body (1) and the telescopic rod (10-1) and which drives the telescopic rod (10-1) to move downward and drives the unblocking end (10-2) into the sewage pipe (7).

3. The dyeing and printing wastewater treatment device according to claim 2, characterized in that: The elastic element (10-3) includes a connecting ring (10-3-1) disposed on the telescopic rod (10-1) and a compression spring (10-3-2) sleeved on the telescopic rod (10-1) and with both ends pressed against the upper surface of the protrusion (5-1) and the connecting ring (10-3-1).

4. The dyeing and printing wastewater treatment device according to claim 3, characterized in that: The pressing component (10-4) includes a pressing rod (10-4-1) with one end hinged to the side of the pool body (1), a handle (10-4-2) at the other end of the pressing rod (10-4-1), and a connecting sleeve (10-4-3) at the upper end of the telescopic rod (10-1) for keeping the pressing rod (10-4-1) in an embedded state during rotation.

5. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The sludge pump (8) is equipped with a first three-way valve (11) at its inlet end. One of the connectors of the first three-way valve (11) is connected to the bottom of the chamber (1-1). The other connector of the first three-way valve (11) is equipped with a water supply pipe (12) connected to the front side of the pool body (1). A water distribution component (13) is provided at the connection between the sludge pipe (9) and the collection hopper (5). A second three-way valve (14) is provided at the lower end of the sewage pipe (7). A return water pipe (15) is provided between one of the connectors of the second three-way valve (14) and the pool body (1).

6. The dyeing and printing wastewater treatment device according to claim 5, characterized in that: The water distribution component (13) includes a main body (13-1) connected to the sludge discharge pipe (9) in the middle, and a plurality of branch pipes (13-2) disposed between the main body (13-1) and the collection hopper (5). One end of the branch pipe (13-2) extends downward at an angle away from the sludge discharge mechanism (4) into the collection hopper (5).

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