Wastewater evaporation equipment utilizing waste heat of waste gas

Abstract

The utility model discloses waste water evaporation equipment utilizing waste gas waste heat, which comprises an equipment base, a gas inlet, a spraying evaporation unit, a demisting unit, a gas outlet, a waste water storage tank, a waste water inlet pump and a waste water circulating pump, the demisting unit comprises a demisting chamber and a demisting device arranged on the demisting chamber, one end of the spraying chamber is provided with an air inlet, the other end of the spraying chamber is communicated with one end of the demisting chamber, and the other end of the demisting chamber is provided with an air outlet; the waste water storage tank is arranged at the bottoms of the spraying evaporation unit and the demisting unit and communicated with the spraying cavity and the demisting cavity, the waste water inlet pump and the waste water circulating pump are arranged below the waste water storage tank, the waste water inlet pump is connected with the waste water storage tank through a water inlet pipeline, and the waste water circulating pump is connected with the waste water storage tank and the spraying system through water outlet pipelines. According to the utility model, waste heat of waste gas can be fully utilized to evaporate and concentrate waste water.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to wastewater evaporation equipment utilizing waste heat of waste gas. Background Art

[0002] In the metallurgical and chemical industries, as well as industries that use boilers or electric heating for production, there are often high-temperature waste gases. For waste gases with slightly higher temperatures, direct discharge is generally used for treatment, while high-temperature waste gases are often cooled by spraying with clean water before being discharged, resulting in energy waste and increasing production costs for enterprises. In the field of wastewater treatment, on the one hand, there are a large number of highly polluted and high-salt wastewaters in related industries that are still treated by high-cost and secondary pollution treatment processes, and some wastewaters can only be treated by outsourcing at high disposal fees; on the other hand, with the increasingly stringent environmental regulations and environmental supervision, zero wastewater discharge has gradually become the goal of wastewater treatment in many industries. To achieve the treatment of highly polluted and high-salt wastewater or zero wastewater discharge, wastewater evaporation technology will become one of the most important technologies. Therefore, there is an urgent need for equipment that can make full use of the waste heat of waste gas to evaporate and concentrate wastewater. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a wastewater evaporation device which utilizes the waste heat of waste gas.

[0004] The technical solution of the utility model is as follows:

[0005] A wastewater evaporation device utilizing waste heat of waste gas, comprising a device base, an air inlet, a spray evaporation unit, a demisting unit, an exhaust port, a wastewater storage tank, a wastewater inlet pump and a wastewater circulation pump, wherein the spray evaporation unit, the demisting unit, the wastewater storage tank, the wastewater inlet pump and the wastewater circulation pump are all arranged on the device base, the spray evaporation unit comprises a spray chamber and a spray system arranged on the top of the spray chamber, the demisting unit comprises a demisting chamber and a demisting device arranged on the demisting chamber, and one end of the spray chamber is provided with the inlet The other end of the spray chamber is connected with one end of the demisting chamber, and the other end of the demisting chamber is provided with the exhaust port. The wastewater storage tank is arranged at the bottom of the spray evaporation unit and the demisting unit and is connected with the spray chamber and the demisting chamber. The wastewater inlet pump and the wastewater circulation pump are arranged below the wastewater storage tank. The wastewater inlet pump is connected with the wastewater storage tank through an inlet pipe, and the wastewater circulation pump is connected with the wastewater storage tank and the spray system of the spray evaporation unit through an outlet pipe.

[0006] Furthermore, the spray system is composed of a liquid supply pipe and a plurality of spray heads, the plurality of spray heads are evenly arranged on the liquid supply pipe, and the wastewater circulation pump is connected to the liquid supply pipe through a water outlet pipe.

[0007] Furthermore, the spray evaporation unit also includes an evaporation observation panel, and the evaporation observation panel is arranged on the side wall of the spray chamber.

[0008] Furthermore, the evaporation observation panel is connected by bolts and is surrounded by a sealing ring.

[0009] Furthermore, the defogger unit also includes a defogger observation panel, and the defogger observation panel is arranged on the side wall of the defogger chamber.

[0010] Furthermore, the demisting observation panel is connected by bolts and a sealing ring is provided around it.

[0011] Furthermore, the bottom end of the wastewater storage tank is connected to a drain pipe, and a solenoid valve is provided on the drain pipe.

[0012] Furthermore, the wastewater storage tank is designed to be in an oblique bucket shape.

[0013] Furthermore, a liquid level gauge is provided on the wastewater storage tank, and the liquid level gauge is linked to the wastewater inlet pump.

[0014] Furthermore, a conductivity meter is provided on the wastewater storage tank, and the conductivity meter is linked to the solenoid valve.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The utility model atomizes the wastewater through a spray evaporation unit so that it can fully contact with the high-temperature exhaust gas, thereby improving the utilization efficiency of the waste heat of the exhaust gas. The evaporated wastewater is then intercepted by a demisting unit to prevent the unevaporated wastewater from carrying the exhaust gas out of the evaporation equipment.

[0017] (2) The utility model can facilitate observation of evaporation and defogging effects by providing an evaporation observation panel and a defogging observation panel;

[0018] (3) The utility model designs the wastewater storage tank into an oblique bucket shape, which is conducive to the discharge of wastewater, crystals and equipment cleaning fluid;

[0019] (4) The utility model is provided with a liquid level gauge on the wastewater storage tank, which can be linked with the wastewater inlet pump to ensure the liquid in the wastewater storage tank and avoid the occurrence of evaporation or idling of the wastewater circulation pump;

[0020] (5) The utility model also provides a conductivity meter on the wastewater storage tank, which can be linked with the solenoid valve of the drain pipe to realize automatic discharge of wastewater after evaporation and concentration to a certain degree, thereby achieving fully automated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The utility model provides a structural schematic diagram of a wastewater evaporation device utilizing waste heat of exhaust gas. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0025] Example

[0026] See also Figure 1 The present embodiment provides a wastewater evaporation device utilizing waste heat of waste gas, including a device base 1, an air inlet 2, a spray evaporation unit 3, a demisting unit 4, an exhaust port 5, a wastewater storage tank 6, a wastewater inlet pump 7, and a wastewater circulation pump 8. The spray evaporation unit 3, the demisting unit 4, the wastewater storage tank 6, the wastewater inlet pump 7, and the wastewater circulation pump 8 are all arranged on the device base 1. The spray evaporation unit 3 includes a spray chamber 31 and a spray system arranged on the top of the spray chamber 31, and the spray system is composed of a liquid supply pipe 32 and a plurality of spray heads 33, and the plurality of spray heads 33 are evenly arranged on the liquid supply pipe 32. The demisting unit 4 includes a demisting chamber 41 and a demisting device 42 arranged on the demisting chamber 41. An air inlet 2 is provided at one end of the spray chamber 31, and the other end of the spray chamber 31 is connected to one end of the demisting chamber 41. An exhaust port 5 is provided at the other end of the demisting chamber 41. A wastewater storage tank 6 is arranged at the bottom of the spray evaporation unit 3 and the demisting unit 4 and is connected to the spray chamber 31 and the demisting chamber 41. A drain pipe 61 is connected to the bottom end of the wastewater storage tank 6, and a solenoid valve 62 is arranged on the drain pipe 61. A wastewater inlet pump 7 and a wastewater circulation pump 8 are arranged below the wastewater storage tank 6. The wastewater inlet pump 7 is connected to the wastewater storage tank 6 through an inlet pipe 71, and the wastewater circulation pump 8 is connected to the wastewater storage tank 6 and the liquid supply pipe 32 of the spray evaporation unit 3 through an outlet pipe 81.

[0027] During operation, the wastewater is atomized by the spray evaporation unit 3 so that it can fully contact with the high-temperature exhaust gas, thereby improving the utilization efficiency of the waste heat of the exhaust gas. The evaporated wastewater is then intercepted by the demisting unit 4 to prevent the unevaporated wastewater from bringing the exhaust gas out of the evaporation equipment.

[0028] Preferably, the spray evaporation unit 3 also includes an evaporation observation panel 34, which is arranged on the side wall of the spray chamber 31 and connected by bolts. A sealing ring is provided around the evaporation observation panel 34. The evaporation effect can be observed through the evaporation observation panel 34, and the detachable design of the evaporation observation panel 34 can facilitate the maintenance and repair of the inside of the spray evaporation unit 3.

[0029] Preferably, the defogger unit 4 also includes a defogger observation panel 43, which is arranged on the side wall of the defogger chamber 41 and connected by bolts. A sealing ring is provided around the defogger observation panel 43. The defogger observation panel 43 can be used to observe the defogger effect, and the detachable design of the defogger observation panel 43 can facilitate the maintenance and repair of the inside of the defogger unit 4.

[0030] Preferably, the wastewater storage tank 6 is designed to be an oblique bucket shape, which can facilitate the discharge of wastewater, crystals and equipment cleaning fluid.

[0031] Preferably, a liquid level meter 9 and a conductivity meter 10 are provided on the wastewater storage tank 6. The liquid level meter 9 can be linked with the wastewater inlet pump 7 to ensure the liquid in the wastewater storage tank 6, avoiding evaporation or idling of the wastewater circulation pump 8. The conductivity meter 10 can be linked with the solenoid valve of the drain pipe 61 to realize automatic discharge of wastewater after evaporation and concentration to a certain degree, so as to achieve fully automatic operation.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wastewater evaporation device utilizing waste heat from exhaust gas, characterized in that: The device comprises an equipment base, an air inlet, a spray evaporation unit, a demisting unit, an exhaust port, a wastewater storage tank, a wastewater inlet pump and a wastewater circulation pump. The spray evaporation unit, the demisting unit, the wastewater storage tank, the wastewater inlet pump and the wastewater circulation pump are all arranged on the equipment base. The spray evaporation unit comprises a spray chamber and a spray system arranged on the top of the spray chamber. The demisting unit comprises a demisting chamber and a demisting device arranged on the demisting chamber. The air inlet is arranged at one end of the spray chamber. The spray chamber The other end of the chamber is connected with one end of the demisting chamber, and the other end of the demisting chamber is provided with the exhaust port. The wastewater storage tank is arranged at the bottom of the spray evaporation unit and the demisting unit and is connected with the spray chamber and the demisting chamber. The wastewater inlet pump and the wastewater circulation pump are arranged below the wastewater storage tank. The wastewater inlet pump is connected with the wastewater storage tank through an inlet pipe, and the wastewater circulation pump is connected with the wastewater storage tank and the spray system of the spray evaporation unit through an outlet pipe.

2. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 1 is characterized in that: The spray system consists of a liquid supply pipe and a plurality of spray heads, the plurality of spray heads are evenly arranged on the liquid supply pipe, and the wastewater circulation pump is connected to the liquid supply pipe through a water outlet pipe.

3. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 1 is characterized in that: The spray evaporation unit further includes an evaporation observation panel, which is disposed on a side wall of the spray chamber.

4. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 3 is characterized in that: The evaporation observation panel is connected by bolts and is surrounded by a sealing ring.

5. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 1 is characterized in that: The demisting unit further includes a demisting observation panel, and the demisting observation panel is disposed on a side wall of the demisting chamber.

6. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 5, characterized in that: The demisting observation panel is connected by bolts and is surrounded by a sealing ring.

7. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 1 is characterized in that: The bottom end of the wastewater storage tank is connected with a drain pipe, and a solenoid valve is arranged on the drain pipe.

8. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 7 is characterized in that: The wastewater storage tank is designed to be in an oblique bucket shape.

9. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 1, characterized in that: The wastewater storage tank is provided with a liquid level meter, and the liquid level meter is linked with the wastewater inlet pump.

10. The wastewater evaporation equipment using waste heat of exhaust gas according to claim 7, characterized in that: The wastewater storage tank is also provided with a conductivity meter, and the conductivity meter is linked with the solenoid valve.

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