Boiler wastewater recovery device

Abstract

The utility model provides a boiler wastewater recycling device, and relates to the technical field of sewage recycling equipment, the boiler wastewater recycling device comprises a boiler, the side wall of the boiler is communicated with a filtering mechanism, the bottom of the filtering mechanism is communicated with a drainage pipe, the bottom of the drainage pipe is communicated with a heat exchanger, and the filtering mechanism comprises a first filtering box, a second filtering box, a filtering plate and a brushing assembly; the side wall of the first filtering box is communicated with the side wall of the second filtering box, the filtering plate is obliquely arranged in the first filtering box and the second filtering box, the brushing assembly is arranged on the side wall of the second filtering box, overflowing waste water can be subjected to slag removal treatment through the filtering plate, meanwhile, waste water on waste slag can be further dehydrated through the second filtering box, and the waste water can be recycled. Waste water and waste residues are prevented from being discharged together to affect waste residue collection.

Description

Technical Field

[0001] The present application relates to the technical field of sewage recovery equipment, and in particular to a boiler wastewater recovery device. Background Art

[0002] Boiler blowdown is a major heat loss in boiler operation. In order to control the quality of boiler water steam, the boiler is designed with continuous blowdown (also known as surface blowdown), that is, the boiler continuously discharges part of the boiler water from the part with the highest salt and alkali concentration in the boiler water to reduce the salt content, alkali content, silicate content and suspended slag content in the boiler water. Its purpose is to ensure the quality of boiler water so that the boiler can operate safely and stably for a long time, and the heat loss of blowdown is also one of the important factors affecting the thermal efficiency of the boiler.

[0003] At present, in the process of heat recovery from wastewater, the boiler contains a large amount of slag in the sewage. If it is not cleaned in time, it is easy to cause scaling in the pipes, causing blockage of the wastewater recovery pipes, seriously affecting the discharge of wastewater and the recovery of heat energy from wastewater. In view of this situation, it is necessary to design a boiler wastewater recovery device. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a boiler waste water recovery device, which can solve the technical problems of low conversion efficiency and blockage generated during the recovery of boiler waste water heat energy.

[0005] The embodiment of the present application provides a boiler wastewater recovery device, comprising a boiler, a filtering mechanism is connected to the side wall of the boiler, a drain pipe is connected to the bottom of the filtering mechanism, and a heat exchanger is connected to the bottom of the drain pipe;

[0006] The filtering mechanism includes a first filter box, a second filter box, a filter plate and a cleaning and brushing assembly. The first filter box is connected to the side wall of the second filter box. The filter plate is tiltedly arranged in the first filter box and the second filter box. The cleaning and brushing assembly is arranged on the side wall of the second filter box.

[0007] Furthermore, the brush cleaning assembly includes a brush plate, a cylinder and a guide rod, the cylinder drives the brush plate to reciprocate on the filter plate, one end of the guide rod is fixed to the brush plate, and the other end of the guide rod is slidably arranged with the second filter box.

[0008] Furthermore, the bottom of the second filter box is communicated with the side wall of the drain pipe.

[0009] Furthermore, a wall scraper assembly is also provided in the drain pipe, and the wall scraper assembly includes a scraper, a rotating shaft and a rotating motor. The rotating shaft is rotatably installed in the drain pipe, the rotating motor drives the rotating shaft to rotate, and the scraper is fixedly arranged on the rotating shaft.

[0010] Furthermore, the first filter box, the second filter box, and the drain pipe are all provided with transparent observation windows.

[0011] Furthermore, a vibration motor is fixedly arranged at the bottom of the discharge end of the filter plate.

[0012] Beneficial effects of the utility model:

[0013] The filtering mechanism provided by the utility model includes a first filter box, a second filter box, a filter plate and a cleaning brush assembly. The filter plate can be used to remove the slag from the overflowed wastewater. At the same time, the second filter box can further dehydrate the wastewater on the slag to prevent the wastewater from being discharged together with the waste slag, which affects the collection of the waste slag.

[0014] By setting up the cleaning component, the filter plate in the first filter box can be cleaned of debris in time to prevent the accumulation of debris and the discharge of wastewater from being unsmooth. The scraping component in the drain pipe can continuously clean the inner wall of the drain pipe to prevent the sewage in the drain pipe from forming dirt on the inner wall of the drain pipe and affecting the overall discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 It is a side full cross-sectional structural schematic diagram of a filtering mechanism according to an embodiment of the utility model;

[0018] Figure 3 Another cross-sectional structural schematic diagram of the filtering mechanism of one embodiment of the utility model.

[0019] The reference numerals are:

[0020] 1. Boiler; 2. Filter mechanism; 21. First filter box; 22. Second filter box; 23. Filter plate; 231. Vibration motor; 24. Brush assembly; 241. Brush plate; 242. Cylinder; 243. Guide rod; 3. Drain pipe; 31. Scraper assembly; 311. Scraper; 312. Rotating shaft; 313. Rotating motor; 4. Heat exchanger; 5. Observation window. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] The embodiment of the present application discloses a boiler waste water recovery device.

[0028] Reference Figure 1-3 A boiler wastewater recovery device comprises a boiler 1, a filter mechanism 2 is connected to the side wall of the boiler 1, a drain pipe 3 is connected to the bottom of the filter mechanism 2, and a heat exchanger 4 is connected to the bottom of the drain pipe 3;

[0029] The filter mechanism 2 includes a first filter box 21, a second filter box 22, a filter plate 23 and a cleaning component 24. The first filter box 21 is connected to the side wall of the second filter box 22. The filter plate 23 is tiltedly arranged in the first filter box 21 and the second filter box 22. The cleaning component 24 is arranged on the side wall of the second filter box 22. When in use, the waste water of the boiler 1 together with the slag overflows from the top of the furnace body into the filter mechanism 2, and is filtered through the first filter box 21. The filtered slag stays on the filter plate 23. The wastewater from the first filter box 21 and the second filter box 22 flows into the heat exchanger 4 through the drain pipe 3 for heat exchange and is then discharged from the heat exchanger 4. The filter plate 23 is provided to remove the overflowed wastewater. At the same time, the second filter box 22 is provided to further dehydrate the wastewater on the waste residue to prevent the wastewater from being discharged together with the waste residue, thereby affecting the collection of the waste residue.

[0030] Reference Figure 2-3 The cleaning brush assembly 24 includes a brush plate 241, a cylinder 242 and a guide rod 243. The cylinder 242 drives the brush plate 241 to move back and forth on the filter plate 23. One end of the guide rod 243 is fixed to the brush plate 241, and the other end of the guide rod 243 is slidably arranged with the second filter box 22. When in use, the cylinder 242 drives the brush plate 241 to brush back and forth on the filter plate 23, which can push the residue on the filter plate 23 from the first filter box 21 to the second filter box 22 for dehydration, and at the same time effectively prevent the filter plate 23 from being blocked.

[0031] Reference Figure 1-2 The bottom of the second filter box 22 is connected to the side wall of the drain pipe 3, so that the waste water dehydrated from the second filter box 22 can be discharged to the drain pipe 3 for centralized treatment.

[0032] Reference Figure 2 A wall scraper assembly 31 is also provided in the drain pipe 3. The wall scraper assembly 31 includes a scraper 311, a rotating shaft 312 and a rotating motor 313. The rotating shaft 312 is rotatably installed in the drain pipe 3. The rotating motor 313 drives the rotating shaft 312 to rotate. The scraper 311 is fixedly arranged on the rotating shaft 312. The rotating motor 313 drives the rotating shaft 312 to rotate, so that the scraper 311 continuously cleans the inner wall of the drain pipe 3 to prevent the sewage in the drain pipe 3 from accumulating dirt on the inner wall of the drain pipe 3 and affecting the overall discharge.

[0033] Reference Figure 1 The first filter box 21, the second filter box 22, and the drain pipe 3 are all provided with transparent observation windows 5, so as to timely observe whether the first filter box 21, the second filter box 22, and the drain pipe 3 are blocked.

[0034] Reference Figure 1-3 A vibration motor 231 is also fixedly provided at the bottom of the discharge end of the filter plate 23 to effectively vibrate the filter plate 23 so that the slag and wastewater are quickly separated.

[0035] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A boiler wastewater recovery device, comprising a boiler, characterized in that: The side wall of the boiler is connected to a filter mechanism, the bottom of the filter mechanism is connected to a drain pipe, and the bottom of the drain pipe is connected to a heat exchanger; The filtering mechanism includes a first filter box, a second filter box, a filter plate and a cleaning and brushing assembly. The first filter box is connected to the side wall of the second filter box. The filter plate is tiltedly arranged in the first filter box and the second filter box. The cleaning and brushing assembly is arranged on the side wall of the second filter box.

2. A boiler waste water recovery device according to claim 1, characterized in that: The brush cleaning assembly includes a brush plate, a cylinder and a guide rod. The cylinder drives the brush plate to reciprocate on the filter plate. One end of the guide rod is fixed to the brush plate, and the other end of the guide rod is slidably arranged with the second filter box.

3. A boiler waste water recovery device according to claim 1, characterized in that: The bottom of the second filter box is communicated with the side wall of the drain pipe.

4. A boiler waste water recovery device according to claim 1, characterized in that: A wall scraper assembly is also provided in the drain pipe, and the wall scraper assembly includes a scraper, a rotating shaft and a rotating motor. The rotating shaft is rotatably installed in the drain pipe, the rotating motor drives the rotating shaft to rotate, and the scraper is fixedly arranged on the rotating shaft.

5. The boiler waste water recovery device according to claim 1, characterized in that: The first filter box, the second filter box and the drain pipe are all provided with transparent observation windows.

6. A boiler waste water recovery device according to claim 1, characterized in that: A vibration motor is also fixedly arranged at the bottom of the discharge end of the filter plate.

Images