Multi-effect evaporation wastewater treatment device

Abstract

The utility model discloses a multi-effect evaporation wastewater treatment device which comprises an evaporation tank main body, a solid waste collection pipe is connected and arranged in the evaporation tank main body, a water purification cavity communicated with a liquid discharge pipe is formed between the outer wall of the solid waste collection pipe and the inner wall of the evaporation tank main body, a waste discharge pipe extending to the outside is connected and arranged at the bottom of the solid waste collection pipe, and an opening is formed in the solid waste collection pipe. A filtering part is connected into the opening, a water distribution ring pipe wrapping the opening and the filtering part is connected into the water purification cavity, a plurality of water spraying heads are connected to the inner side of the water distribution ring pipe, the liquid drainage pipe is connected with a water guide pipe communicated with the water distribution ring pipe, and a booster pump is connected to the water guide pipe. Compared with the prior art, the evaporation tank has the advantages that the solid waste collecting pipe is arranged in the evaporation tank main body, solid waste can be remained in the evaporation tank main body through the filtering piece, so that the solid waste can be conveniently deposited and discharged in a concentrated manner, and meanwhile, the filtering piece can be regularly cleaned by arranging the annular pipe outside and matching with purified water backflow.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a multi-effect evaporation wastewater treatment device. Background Art

[0002] Multi-effect evaporation is an evaporation operation that connects multiple evaporators in series and uses the secondary steam generated in the previous effect as the heating steam for the next effect. The main purpose of this technology is to save heating steam. By repeatedly utilizing the vaporization and condensation of secondary steam, the consumption of fresh steam is significantly reduced. Each evaporator in the multi-effect evaporation system is called an effect, the evaporator that is fed with heating steam is called the first effect, and the evaporator that uses the secondary steam of the first effect as the heating agent is called the second effect, and so on.

[0003] In the evaporator of the multi-effect evaporation, the crystals condensed by evaporation are mainly discharged through the bottom. However, some crystals may be discharged through the circulating drain pipe and enter the entire multi-effect evaporation system, which may easily lead to an increase and acceleration of crystal sticking and blockage in the system pipeline. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-effect evaporation wastewater treatment device for reducing the excessive condensation of wastewater entering the entire multi-effect evaporation system in response to the deficiencies in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a multi-effect evaporation wastewater treatment device, comprising an evaporation tank body, a feed pipe connected to the top of one side of the evaporation tank body, a liquid collecting bottom hopper and a steam collecting top hopper connected to the top and bottom of the evaporation tank body respectively, a steam discharge pipe connected to the top of the steam collecting top hopper, a liquid discharge pipe connected to one side of the bottom of the evaporation tank body, a solid waste collecting pipe connected to the inside of the evaporation tank body below the feed pipe, a clean water cavity connected to the liquid discharge pipe is formed between the outer wall of the solid waste collecting pipe and the inner wall of the evaporation tank body, a waste discharge pipe extending to the outside is connected to the bottom of the solid waste collecting pipe, an opening connecting the solid waste collecting pipe and the clean water cavity is provided on the solid waste collecting pipe, and a filter is connected in the opening;

[0006] The water purification chamber is internally connected to a water distribution ring pipe that wraps the opening and the filter element. The inner side of the water distribution ring pipe is connected to multiple water spray heads. The drainage pipe is connected to a water pipe that communicates with the water distribution ring pipe. The water pipe is connected to a booster pump.

[0007] Furthermore, the feed pipe, steam discharge pipe and liquid discharge pipe are respectively connected with a first flow control valve, a second flow control valve and a third flow control valve, so as to facilitate the operation of controlling the flow rate of entry and discharge.

[0008] Furthermore, the water pipe is connected with an electric control valve to facilitate the rapid opening and closing of the water flow in the pipeline in conjunction with the booster pump.

[0009] Furthermore, a first reinforcing support rod is fixedly connected between the upper and lower outer sides of the water diversion ring pipe and the inner wall of the evaporation tank body, and a second reinforcing support rod is connected between the booster pump and the outer wall of the evaporation tank body, so as to facilitate stable support of the water diversion ring pipe and the booster pump.

[0010] Furthermore, a temperature sensor is connected to the top of the evaporation tank body to facilitate sensing the internal temperature.

[0011] Furthermore, the filter element includes an outer supporting ring net, and a filter cloth cover is fixedly connected to the inner side of the supporting ring net to facilitate filtering of condensed solid waste.

[0012] The advantages of the multi-effect evaporation wastewater treatment device of the present invention over the prior art are as follows: the present invention arranges a solid waste collecting pipe in the evaporation tank body, and the solid waste can be retained inside through the filter element for convenient centralized deposition and discharge; at the same time, a ring pipe is arranged on the outside, and in conjunction with the clean water reflux arrangement, the filter element can be cleaned regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a multi-effect evaporation wastewater treatment device of the utility model.

[0014] Figure 2 The utility model is a schematic cross-sectional view of a multi-effect evaporation wastewater treatment device.

[0015] Figure 3 The utility model is a schematic diagram of the filter structure of a multi-effect evaporation wastewater treatment device.

[0016] As shown in the figure: 1. Evaporator body; 2. Feed pipe; 3. Liquid collecting bottom hopper; 4. Solid waste collecting pipe; 5. Waste discharge pipe; 6. Steam collecting top hopper; 7. Steam discharge pipe; 8. Opening; 9. Clean water chamber; 10. Drain pipe; 11. Filter element; 12. Water distribution ring pipe; 13. Sprinkler head; 14. First reinforced support rod; 15. Water guide pipe; 16. Booster pump; 17. Second reinforced support rod; 18. First flow control valve; 19. Second flow control valve; 20. Third flow control valve; 21. Electric control valve; 22. Temperature sensor; 23. Support ring network; 24. Filter cloth cover. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings.

[0018] Combined with attachment Figure 1-3, a multi-effect evaporation wastewater treatment device includes an evaporation tank body 1. In a conventional multi-effect evaporation system, a plurality of evaporation tank bodies 1 are set, which can perform multi-effect evaporation to treat wastewater. At the same time, the system needs to be equipped with other equipment of the multi-effect evaporation system such as a liquid pump, heating, piping, and a mother liquid tank. This is a common existing technology, so it is not described in detail. The top of the evaporation tank body 1 is connected to a feed pipe 2 to facilitate heating the heated liquid. The feed pipe 2 needs to be connected to an external heater. The top and bottom of the evaporation tank body 1 are respectively connected to a liquid collecting bottom hopper 3 and a steam collecting top hopper 6. The top of the steam collecting top hopper 6 is connected to a steam exhaust pipe 7. The steam exhaust pipe 7 needs to be connected to the heater of the next-effect evaporation tank. The bottom side of the evaporation tank body 1 is connected to a drain pipe 10. The drain pipe 10 needs to be connected to an external circulation pump to ensure the circulation operation of the overall multi-effect evaporation. The interior of the evaporation tank body 1 is connected to a solid waste collecting pipe 4 below the feed pipe 2. The outer wall of the solid waste collecting pipe 4 and the inner wall of the evaporation tank body 1 form a clean water chamber 9 connected to the drain pipe 10. The bottom of the solid waste collecting pipe 4 is connected to a drain pipe 5 extending to the outside. The solid waste collecting pipe 4 is provided with an opening 8 connecting the solid waste collecting pipe 4 and the clean water chamber 9. The opening 8 is connected with a filter element 11. The filter element 11 includes an outer support ring network 23, and a filter cloth cover 24 is fixedly connected to the inner side of the support ring network 23. In the specific setting, the solid waste collecting pipe 4 is divided into two sections, the upper and lower sections, the opening 8 and the filter element 11 are arranged between the upper and lower sections. The more specific setting is that the support ring network 23 is arranged in the opening 8, and the filter cloth cover 24 is attached to the inner side of the support ring network 23. The filter cloth cover 24 needs to be sealed and fixed with the inner wall of the solid waste collecting pipe 4 at the top and bottom. Generally, the filter cloth cover 24 is fixed by a ring block, a sealing ring and bolts. The condensed solid waste can be filtered through the filter cloth cover 24, and the clean water enters the clean water chamber 9 and is discharged from the drain pipe 10.

[0019] Combined with attachment Figure 1-2 The clean water chamber 9 is internally connected with a water diversion ring pipe 12 that wraps the opening 8 and the filter element 11. A first reinforcing support rod 14 is fixedly connected between the upper and lower outer sides of the water diversion ring pipe 12 and the inner wall of the evaporation tank body 1. A plurality of water spray heads 13 are connected to the inner side of the water diversion ring pipe 12. The drain pipe 10 is connected with a water guide pipe 15 that communicates with the water diversion ring pipe 12. A booster pump 16 is connected to the water guide pipe 15. An electric control valve 21 is connected to the water guide pipe 15. A second reinforcing support rod 17 is connected between the booster pump 16 and the outer wall of the evaporation tank body 1. During specific implementation, it is often necessary to perform regular cleaning operations on the filter element 11. Regular cleaning means regularly starting the booster pump 16 and the electric control valve 21, so that the clean liquid discharged from the drain pipe 10 can be drawn into the water diversion ring pipe 12. In conjunction with the multiple water spray heads 13, water can be sprayed from the outside to the inside of the filter cloth cover 24 to clean the waste solid attached to the inside of the filter cloth cover 24.

[0020] Combined with attachment Figure 1-2 The feed pipe 2, the steam discharge pipe 7 and the liquid discharge pipe 10 are respectively connected with a first flow control valve 18, a second flow control valve 19 and a third flow control valve 20, and the top of the evaporation tank body 1 is connected with a temperature sensor 22.

[0021] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A multi-effect evaporation wastewater treatment device, comprising an evaporation tank body (1), wherein a feed pipe (2) is connected to the top of one side of the evaporation tank body (1), a liquid collecting bottom hopper (3) and a steam collecting top hopper (6) are connected to the top and bottom of the evaporation tank body (1), respectively, a steam discharge pipe (7) is connected to the top of the steam collecting top hopper (6), and a liquid discharge pipe (10) is connected to one side of the bottom of the evaporation tank body (1), characterized in that: A solid waste collecting pipe (4) is connected to the interior of the evaporation tank body (1) below the feed pipe (2); a clean water cavity (9) communicating with a liquid discharge pipe (10) is formed between the outer wall of the solid waste collecting pipe (4) and the inner wall of the evaporation tank body (1); a waste discharge pipe (5) extending to the outside is connected to the bottom of the solid waste collecting pipe (4); an opening (8) communicating with the solid waste collecting pipe (4) and the clean water cavity (9) is provided on the solid waste collecting pipe (4); a filter element (11) is connected to the inside of the opening (8); The water purification chamber (9) is internally connected to a water distribution ring pipe (12) that wraps an opening (8) and a filter element (11); a plurality of water spray heads (13) are connected to the inner side of the water distribution ring pipe (12); the drainage pipe (10) is connected to a water guide pipe (15) that communicates with the water distribution ring pipe (12); and a booster pump (16) is connected to the water guide pipe (15).

2. A multi-effect evaporation wastewater treatment device according to claim 1, characterized in that: The feed pipe (2), the steam discharge pipe (7) and the liquid discharge pipe (10) are respectively connected to a first flow control valve (18), a second flow control valve (19) and a third flow control valve (20).

3. The multi-effect evaporation wastewater treatment device according to claim 1, characterized in that: The water conduit (15) is connected to an electric control valve (21).

4. The multi-effect evaporation wastewater treatment device according to claim 1, characterized in that: A first reinforcing support rod (14) is fixedly connected between the upper and lower outer sides of the water-dividing ring pipe (12) and the inner wall of the evaporation tank body (1), and a second reinforcing support rod (17) is connected between the booster pump (16) and the outer wall of the evaporation tank body (1).

5. The multi-effect evaporation wastewater treatment device according to claim 1, characterized in that: A temperature sensor (22) is connected to the top of the evaporation tank body (1).

6. The multi-effect evaporation wastewater treatment device according to claim 1, characterized in that: The filter element (11) comprises an outer supporting ring net (23), and a filter cloth cover (24) is fixedly connected to the inner side of the supporting ring net (23).

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