Boiler wastewater treatment device

By using a combination of evaporator and heating tube in the boiler wastewater treatment device, along with a stirring assembly to scrape off scale, the problem of heat transfer efficiency caused by salt precipitation inside the boiler was solved, thus improving both salt removal and heat transfer.

CN224015331UActive Publication Date: 2026-03-20蚌埠市特种设备监督检验中心
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing boiler wastewater treatment devices cannot effectively remove salts dissolved in the water, causing scale to precipitate inside the boiler and affecting heat transfer efficiency.

Method used

An evaporator and heating tube combination is used to retain the salt in the wastewater in the evaporator through evaporation, and the scale that is precipitated is scraped off by the stirring rod of the stirring component to avoid affecting heat transfer.

Benefits of technology

It effectively removes salt from boiler wastewater, prevents scale from precipitating inside the boiler, and improves heat transfer efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224015331U_ABST
    Figure CN224015331U_ABST
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Abstract

The utility model relates to the technical field of boiler wastewater treatment, in particular to a boiler wastewater treatment device which comprises an evaporation tank, a heating pipe, a stirring assembly, a water inlet assembly and a storage box, the stirring assembly comprises a mounting pipe arranged at the top of the evaporation tank, a stirring motor arranged on the mounting pipe, and a stirring rod which is arranged on the stirring motor and is inserted into the evaporation tank; the water inlet assembly comprises a water inlet pipe arranged on the evaporation tank, a filter pipe arranged on the water inlet pipe, a slag receiving box arranged on the filter pipe and a filter plate arranged in the filter pipe. The water is evaporated into the storage box to be stored, salt is left in the evaporation tank, through the arrangement of the stirring assembly, scale separated out of wastewater and adhered to the inner wall of the evaporation tank is scraped away, and the situation that heat transfer is affected by the scale, and consequently the evaporation efficiency is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of boiler wastewater treatment technology, specifically a boiler wastewater treatment device. Background Technology

[0002] A boiler is a device used to heat water or other liquids, converting them into steam or hot water. It generates heat by burning fuels (such as coal, natural gas, oil, etc.) or using electricity, and transfers this heat to the water or other working medium inside the boiler, thus achieving energy conversion and transfer. Boilers are widely used in heating, hot water supply, industrial production, power generation, and other fields. After a period of use, boilers need to discharge wastewater to remove concentrated, salty wastewater from inside, preventing the accumulation of large amounts of scale within the boiler.

[0003] A boiler wastewater treatment device disclosed in CN215462263U includes a housing, a storage tank fixedly connected to the bottom of the housing, a water supply pipe provided on the top left side of the housing, and a water baffle plate, a motor and a rotating rod inside the storage tank. The motor is fixedly installed at the bottom central axis of the inner wall of the storage tank, and the water baffle plates are all located on the left and right sides of the motor. The upper and lower ends of the two water baffle plates are fixedly connected to the upper and lower ends of the inner wall of the storage tank.

[0004] However, when the above-mentioned boiler wastewater treatment device is in use, although the solid impurities in the wastewater are filtered out by the sponge, the boiler wastewater contains a large amount of salts such as calcium carbonate and magnesium carbonate, which will precipitate out during the settling and cooling process. The salts dissolved in the water cannot be removed by the sponge filtration alone. Summary of the Invention

[0005] The purpose of this invention is to provide a boiler wastewater treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A boiler wastewater treatment device, comprising:

[0008] An evaporator, wherein a heating element is provided on the evaporator;

[0009] A stirring assembly, comprising a mounting pipe disposed at the top of the evaporator, a stirring motor disposed on the mounting pipe, and a stirring rod disposed on the stirring motor and inserted into the evaporator;

[0010] The water inlet assembly includes a water inlet pipe disposed on the evaporator, a filter pipe disposed on the water inlet pipe, a slag collection box disposed on the filter pipe, and a filter plate disposed inside the filter pipe.

[0011] The storage box is communicated with the evaporation tank through a connecting pipe, waste water flows into the evaporation tank through the water inlet pipe, the filter plate leaves the water scale in the residue receiving box, the heating pipe heats the waste water in the evaporation tank, and the waste water is liquefied in the storage box after being evaporated through the connecting pipe, the stirring motor drives the stirring rod to rotate, the stirring rod moves along the inner wall of the evaporation tank, and the water scale separated out from the waste water is scraped off.

[0012] Preferably, the bottom of the evaporation tank is provided with a residue discharging pipe, which is used for discharging the water scale scraped off by the stirring rod after the waste water in the evaporation tank is evaporated.

[0013] Preferably, the storage box is provided with a water outlet pipe.

[0014] Preferably, the connecting pipe, the residue discharging pipe and the water outlet pipe are provided with valves.

[0015] Preferably, the stirring rod comprises a rod body arranged on the stirring motor, a curved rod arranged on the rod body and a scraper arranged on the curved rod and matched with the inner wall of the evaporation tank.

[0016] Preferably, the stirring motor drives the scraper to rotate, and the water scale separated out from the inner wall of the evaporation tank is scraped off.

[0017] Preferably, the evaporation tank is provided with a support

[0018] Compared with the prior art, the evaporation tank has the beneficial effects that:

[0019] The utility model discloses an evaporation tank, heating pipe, stirring subassembly, water inlet subassembly and storage box, the setting of water inlet subassembly filters the water scale and other impurities in waste water, through the setting of evaporation tank and heating pipe, make the water be evaporated and be stored in storage box, and the salt is left in the evaporation tank, through the setting of stirring subassembly, the water scale that separates out in waste water and adheres on the inner wall of evaporation tank is scraped off, avoids the influence of water scale to heat transfer, thereby influences the efficiency of evaporation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the structural schematic diagram of another angle of view of the utility model;

[0022] Figure 3 It is the structural schematic diagram of the utility model's front view;

[0023] Figure 4 It is the structural schematic diagram of the evaporation tank of the utility model;

[0024] Figure 5 It is a sectional view structure schematic diagram of the filter pipe of the utility model.

[0025] In the figure: 1, evaporating tank; 2, mounting pipe; 3, stirring motor; 4, water inlet pipe; 5, filter pipe; 6, slag receiving box; 7, filter plate; 8, storage tank; 9, connecting pipe; 10, slag discharge pipe; 11, drain pipe; 12, valve; 13, rod body; 14, curved rod; 15, scraper; 16, support; 17, heating pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1 to 5 The utility model provides a technical scheme:

[0028] A boiler wastewater treatment device, comprising:

[0029] Evaporating tank 1 is provided with heating pipe 17, heating pipe 17 is embedded in the inner wall of evaporating tank 1, is used to heat the wastewater in evaporating tank 1, makes the salt in wastewater separate in evaporating tank 1 and remains in evaporating tank 1, and heating pipe 17 can select electric heating wire and other heating equipment.

[0030] Stirring assembly, stirring assembly includes mounting pipe 2, stirring motor 3 and stirring rod, stirring rod includes rod body 13, curved rod 14 and scraper 15, mounting pipe 2 is set up at the top of evaporating tank 1, mounting pipe 2 is fixedly connected with evaporating tank 1 by welding or other ways, stirring motor 3 is set up on mounting pipe 2, stirring motor 3 is fixedly connected with mounting pipe 2 by bolt or other ways, rod body 13 is set up on stirring motor 3 and inserts evaporating tank 1 through mounting pipe 2, rod body 13 is fixedly connected with stirring motor 3 by setting up connecting shaft or other ways, the rotating seal ring connected with mounting pipe 2 can be set up on rod body 13, to avoid the evaporated water vapor from mounting pipe 2, curved rod 14 is set up on rod body 13, curved rod 14 is fixedly connected with rod body 13 by welding or other ways, by the setting of curved rod 14, avoids rod body 13 to cover slag discharge pipe 10, scraper 15 is set up on curved rod 14 and is attached to the inner wall of evaporating tank 1, scraper 15 is fixedly connected with rod body 13 by welding or other ways, stirring motor 3 drives scraper 15 to rotate, makes scraper 15 attached to the inner wall of evaporating tank 1 move, scrapes off the incrustation of water scale separated in wastewater and adhered to the inner wall of evaporating tank 1, avoids the influence of water scale on heat transfer.

[0031] The water inlet assembly includes an inlet pipe 4, a filter pipe 5, a slag collection box 6, and a filter plate 7. The inlet pipe 4 is installed on the evaporator 1 and is fixedly connected to the evaporator 1 by welding or other means. The filter pipe 5 is installed on the inlet pipe 4 and is fixedly connected to the inlet pipe 4 by welding or other means. The filter pipe 5 has a slot. The slag collection box 6 is installed on the slot of the filter pipe 5 and is detachably fixedly connected to the filter pipe 5 by bolts or other means. The slag collection box 6 and the filter pipe 5 are sealed with a rubber ring. The filter plate 7 is installed inside the filter pipe 5 and is fixedly connected to the inner wall of the filter pipe 5 by welding or other means. Wastewater flows into the evaporator 1 through the inlet pipe 4. The filter plate 7 leaves scale in the slag collection box 6. The scale in the slag collection box 6 can be poured out by removing the slag collection box 6.

[0032] Storage tank 8 is connected to evaporator 1 via connecting pipe 9. One end of connecting pipe 9 is fixedly connected to evaporator 1 by welding or flange, and the other end of connecting pipe 9 is fixedly connected to storage tank 8 by welding or flange. A heat exchanger or other condensing device can also be installed in storage tank 8 to quickly liquefy the steam entering storage tank 8.

[0033] The bottom of the evaporator 1 is provided with a slag discharge pipe 10, which is fixedly connected to the evaporator 1 by welding or other means. The slag discharge pipe 10 is used to discharge the scale scraped off by the hanging plate after the wastewater in the evaporator 1 has been evaporated.

[0034] The storage tank 8 is equipped with a drain pipe 11, which is fixedly connected to the inner wall of the storage tank 8 by welding or other means. The drain pipe 11 is used to drain the water stored in the storage tank 8 for reuse or further treatment.

[0035] Valves 12 are installed on the connecting pipe 9, the slag discharge pipe 10 and the drain pipe 11, respectively, and the opening and closing of the connecting pipe 9, the slag discharge pipe 10 and the drain pipe 11 are controlled by the valves 12.

[0036] The evaporator 1 is equipped with a bracket 16, which is fixedly connected to the evaporator 1 by bolts or other means.

[0037] Working principle: During use, wastewater flows into evaporator 1 through inlet pipe 4. Filter plate 7 leaves scale in slag collection box 6. Heating pipe 17 is activated to heat the wastewater in evaporator 1, causing the wastewater to evaporate in evaporator 1. Then, it enters storage box 8 through connecting pipe 9 and is liquefied and stored in storage box 8. At the same time, stirring motor 3 is activated to drive scraper 15 to rotate, causing scraper 15 to move along the inner wall of evaporator 1 to scrape off the scale precipitated in the wastewater. After the wastewater has evaporated, scraper 15 continues to rotate to scrape off the scale and send it to slag discharge pipe 10 for discharge.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler wastewater treatment device, characterized in that, include: An evaporator, wherein a heating element is provided on the evaporator; A stirring assembly, comprising a mounting pipe disposed at the top of the evaporator, a stirring motor disposed on the mounting pipe, and a stirring rod disposed on the stirring motor and inserted into the evaporator; The water inlet assembly includes a water inlet pipe disposed on the evaporator, a filter pipe disposed on the water inlet pipe, a slag collection box disposed on the filter pipe, and a filter plate disposed inside the filter pipe. The storage tank is connected to the evaporator via a connecting pipe. Wastewater flows into the evaporator through the inlet pipe. The filter plate retains scale in the slag collection box. The heating pipe heats the wastewater in the evaporator, causing the wastewater to evaporate and then enter the storage tank through the connecting pipe for liquefaction. The stirring motor drives the stirring rod to rotate, causing the stirring rod to move along the inner wall of the evaporator to scrape off the scale precipitated in the wastewater.

2. The boiler wastewater treatment device according to claim 1, characterized in that: The bottom of the evaporator is equipped with a slag discharge pipe, which is used to discharge the scale scraped off by the stirring rod after the wastewater in the evaporator has been evaporated.

3. The boiler wastewater treatment device according to claim 2, characterized in that: The storage box is equipped with a drain pipe.

4. The boiler wastewater treatment device according to claim 3, characterized in that: Valves are installed on the connecting pipe, slag discharge pipe and drainage pipe.

5. A boiler wastewater treatment device according to claim 4, characterized in that: The stirring rod includes a rod body mounted on the stirring motor, a curved rod mounted on the rod body, and a scraper mounted on the curved rod and conforming to the inner wall of the evaporator.

6. A boiler wastewater treatment device according to claim 5, characterized in that: The stirring motor drives the scraper to rotate, scraping away the scale that has precipitated on the inner wall of the evaporator.

7. The boiler wastewater treatment device according to claim 1, characterized in that: The evaporator is equipped with a support.

Citation Information

Patent Citations

  • Boiler wastewater treatment device

    CN215462263U