Boiler dust remover and boiler

Abstract

The utility model discloses a boiler dust remover and a boiler, and belongs to the technical field of boilers. The shell comprises an ash inlet and an ash outlet; the first rotating shaft and the second rotating shaft are rotationally arranged on the two opposite sides of the shell correspondingly, the side, facing the second rotating shaft, of the first rotating shaft extends to be provided with a first valve deck, and the side, facing the first rotating shaft, of the second rotating shaft extends to be provided with a second valve deck. The first counterweight assembly is arranged on the end face of the first rotating shaft and can drive the first valve deck to rotate towards the ash inlet. The second counterweight assembly is arranged on the end face of the second rotating shaft and can drive the second valve deck to rotate towards the ash inlet. The limiting rod is arranged in the shell and can abut against the first valve deck and the second valve deck so as to limit the first valve deck and the second valve deck from rotating towards the ash inlet. According to the boiler dust remover disclosed by the utility model, dust raising can be reduced, and the recovery rate of fallen dust can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler dust collector and a boiler. Background Art

[0002] A boiler dust collector is a device used to remove particulate soot in the flue gas discharged from the combustion of boiler fuel, and plays an important role in reducing environmental pollution. The applicant's patent with the publication number CN207680231U discloses a double-layer ash discharging structure of a bag dust collector. In the above patent, by setting an upper ash discharging valve and a lower ash discharging valve and arranging them in the opposite direction, it is not easy for the upper ash discharging valve to flush open the lower ash discharging valve when the upper ash discharging valve discharges ash, ensuring the sealing performance and higher reliability. The setting of the double-layer ash discharging valve does not require dust to accumulate to a certain height to ensure the sealing performance, so blockage will not occur.

[0003] The above patent still has the following deficiencies in use: when the valve cover discharges ash, the falling ash will fall obliquely from one end of the valve cover. If the shell shields the valve cover, the falling ash is likely to collide with the shell during the falling process, causing dust to fly; if the shell does not shield the valve cover, during the process of the valve cover rotating to open or close, the error range of the falling range of the falling ash will be relatively large, resulting in the falling ash at the ash outlet being likely to fall outside the trolley, and the falling ash cannot be accurately collected. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a boiler dust collector and a boiler, which can reduce the occurrence of dust flying caused by the collision of falling ash with the shell, and can also narrow the falling range of the falling ash and increase the recovery rate of the falling ash.

[0005] In the first aspect, the utility model provides a boiler dust collector, including:

[0006] A shell, including an ash inlet and an ash outlet;

[0007] A first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are respectively rotatably arranged on opposite sides of the shell, a first valve cover extends from one side of the first rotating shaft towards the second rotating shaft, a second valve cover extends from one side of the second rotating shaft towards the first rotating shaft, and the first valve cover and the second valve cover can rotate to be flush with each other to close the ash inlet and the ash outlet;

[0008] A first counterweight assembly is arranged on the end face of the first rotating shaft, and the first counterweight assembly can drive the first valve cover to rotate towards the ash inlet;

[0009] A second counterweight assembly is arranged on the end face of the second rotating shaft, and the second counterweight assembly can drive the second valve cover to rotate towards the ash inlet;

[0010] The limiting rod is arranged inside the housing, and the limiting rod can respectively abut against the first valve cover and the second valve cover to limit the first valve cover and the second valve cover from rotating towards the ash inlet.

[0011] For the boiler dust collector provided by the utility model, the first valve cover and the second valve cover which are oppositely arranged can reduce the occurrence of dust raising caused by the collision between the falling ash and the housing during the falling process of the ash. At the same time, the falling range of the ash is concentrated between the first valve cover and the second valve cover, thereby narrowing the falling range of the ash, facilitating the collection of the ash by the trolley, and helping to increase the recovery rate of the ash.

[0012] Further, the number of the limiting rods is two, and the two limiting rods are respectively arranged on the opposite sides of the housing.

[0013] Further, the extending length of the limiting rod is arranged in an increasing manner from the side close to the ash inlet to the side far from the ash inlet.

[0014] Adopting the above technical solution, the surface of the limiting rod facing the ash inlet is arranged as an inclined surface, which can guide the ash falling on the limiting rod to fall towards the first valve cover and the second valve cover, thereby reducing the amount of ash deposited on the limiting rod.

[0015] Further, the housing includes a first housing and a second housing which are communicated with each other. The ash inlet and the ash outlet are arranged on the first housing. The number of the second housings is two, and the two second housings are respectively arranged on the opposite sides of the first housing. The first rotating shaft and the second rotating shaft are respectively arranged in the two second housings.

[0016] Further, limiting plates are arranged below the two second housings, and the distance between the two limiting plates is arranged in an increasing manner from the side close to the ash outlet to the side far from the ash outlet. The limiting plates can limit the first valve cover and the second valve cover from rotating towards the ash outlet.

[0017] Adopting the above technical solution, by arranging the limiting plates to limit the rotation range of the first valve cover and the second valve cover towards the ash outlet, and cooperating with the limiting rods to limit the rotation range of the first valve cover and the second valve cover towards the ash inlet, the falling range of the ash can be further narrowed, facilitating the collection of the ash by the trolley.

[0018] Further, the first counterweight assembly includes a first counterweight rod and a first counterweight block. A plurality of first mounting holes are arranged on the first counterweight rod at intervals, and the first counterweight block is detachably arranged in one of the first mounting holes.

[0019] Further, the second counterweight assembly includes a second counterweight rod and second counterweight blocks. A plurality of second mounting holes are spaced on the second counterweight rod, and the second counterweight blocks are detachably arranged on one of the second mounting holes.

[0020] Further, the number of the first counterweight assemblies is two, and the two first counterweight assemblies are arranged on opposite end faces of the first rotating shaft; and / or, the number of the second counterweight assemblies is two, and the two second counterweight assemblies are arranged on opposite end faces of the second rotating shaft.

[0021] Further, an upper ash discharge valve is further included, and the upper ash discharge valve is arranged on one side of the limiting rod close to the ash inlet.

[0022] In a second aspect, a boiler provided by the present utility model includes the boiler dust collector according to any one of the above.

[0023] As can be seen from the above, in the boiler dust collector provided by the present utility model, the first valve cover and the second valve cover are rotatably arranged in the shell through the first rotating shaft and the second rotating shaft. When the gravity generated by the falling ash on the first valve cover and the second valve cover is less than the gravity of the first counterweight assembly and the second counterweight assembly, the first valve cover and the second valve cover can keep abutting against the limiting rod, so as to close the ash inlet and the ash outlet; when the gravity generated by the falling ash on the first valve cover and the second valve cover is greater than the gravity of the first counterweight assembly and the second counterweight assembly, the first valve cover and the second valve cover rotate towards the ash outlet, and the falling ash falls between the first valve cover and the second valve cover and enters the trolley below the ash outlet, completing the automatic collection of the falling ash. Through the relatively arranged first valve cover and second valve cover, the distance between a single valve cover and the shell becomes farther, so that the situation of dust raising caused by the collision between the falling ash and the shell during the falling process can be reduced. At the same time, the falling range of the falling ash is concentrated between the first valve cover and the second valve cover, thereby narrowing the falling range of the falling ash, facilitating the collection of the falling ash by the trolley, and helping to increase the recovery rate of the falling ash.

[0024] Other features and advantages of the present application will be described in the subsequent description, and part of them will become obvious from the description, or can be understood by implementing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained through the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a boiler dust collector provided by the present utility model.

[0026] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the boiler dust collector along the section line A-A in

[0027] Figure 3 isFigure 2 Schematic structural diagram of the boiler dust collector in the dust-falling state.

[0028] Figure 4 For Figure 1 Schematic cross-sectional structure diagram of the boiler dust collector along the section line B-B.

[0029] Figure 5 For Figure 1 Schematic structural diagram of the boiler dust collector equipped with an upper ash discharge valve.

[0030] In the accompanying drawings: 100, housing; 110, ash inlet; 120, ash outlet; 130, first housing; 140, second housing; 141, limiting plate; 210, first rotating shaft; 211, first valve cover; 220, second rotating shaft; 221, second valve cover; 300, first counterweight assembly; 310, first counterweight rod; 311, first mounting hole; 320, first counterweight block; 400, second counterweight assembly; 410, second counterweight rod; 411, second mounting hole; 420, second counterweight block; 500, limiting rod; 600, ash discharge valve. Specific embodiments

[0031] The following details the embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0033] A boiler dust collector disclosed by the present invention is mainly used to remove particulate soot in the flue gas discharged from the combustion of boiler fuel. The boiler dust collector can not only reduce the occurrence of dust raising caused by the collision of falling ash with the housing, but also narrow the falling range of the falling ash and increase the recovery rate of the falling ash.

[0034] Refer to the attached Figure 1 、attached Figure 2 、attached Figure 3, in one embodiment, the boiler dust collector includes a housing 100, a first rotating shaft 210, a second rotating shaft 220, a first counterweight assembly 300, a second counterweight assembly 400, and a limiting rod 500. The housing 100 includes an ash inlet 110 and an ash outlet 120; the first rotating shaft 210 and the second rotating shaft 220 are rotatably disposed on opposite sides of the housing 100 respectively. A first valve cover 211 extends from one side of the first rotating shaft 210 toward the second rotating shaft 220, and a second valve cover 221 extends from one side of the second rotating shaft 220 toward the first rotating shaft 210. The first valve cover 211 and the second valve cover 221 can rotate to be flush with each other to close the ash inlet 110 and the ash outlet 120; the first counterweight assembly 300 is disposed on the end face of the first rotating shaft 210, and the first counterweight assembly 300 can drive the first valve cover 211 to rotate toward the ash inlet 110; the second counterweight assembly 400 is disposed on the end face of the second rotating shaft 220, and the second counterweight assembly 400 can drive the second valve cover 221 to rotate toward the ash inlet 110; the limiting rod 500 is disposed inside the housing 100, and the limiting rod 500 can abut against the first valve cover 211 and the second valve cover 221 respectively to limit the rotation of the first valve cover 211 and the second valve cover 221 toward the ash inlet 110.

[0035] As can be seen from the above, for the boiler dust collector provided by the present utility model, the first valve cover 211 and the second valve cover 221 are rotatably disposed inside the housing 100 through the first rotating shaft 210 and the second rotating shaft 220. When the gravity generated by the ash falling on the first valve cover 211 and the second valve cover 221 is less than the gravity of the first counterweight assembly 300 and the second counterweight assembly 400, the first valve cover 211 and the second valve cover 221 can keep abutting against the limiting rod 500, thereby closing the ash inlet 110 and the ash outlet 120; when the gravity generated by the ash falling on the first valve cover 211 and the second valve cover 221 is greater than the gravity of the first counterweight assembly 300 and the second counterweight assembly 400, the first valve cover 211 and the second valve cover 221 rotate toward the ash outlet 120, and the ash falls between the first valve cover 211 and the second valve cover 221 and enters the trolley below the ash outlet 120, completing the automatic collection of the ash. Through the relatively arranged first valve cover 211 and second valve cover 221 of the boiler dust collector, the distance of a single valve cover from the housing becomes farther, so that the situation of dust raising caused by the collision of the falling ash with the housing 100 during the falling process can be reduced. At the same time, the falling range of the ash is concentrated between the first valve cover 211 and the second valve cover 221, thereby narrowing the falling range of the ash, facilitating the collection of the ash by the trolley, and helping to increase the recovery rate of the ash.

[0036] Continue to refer to the appendix Figure 1, in one embodiment, the first counterweight assembly 300 includes a first counterweight rod 310 and a first counterweight block 320. A plurality of first mounting holes 311 are spaced on the first counterweight rod 310, and the first counterweight block 320 is detachably disposed on one of the first mounting holes 311.

[0037] In specific applications, by adjusting the mounting position of the first counterweight block 320 on the first counterweight rod 310, the load-bearing range of the first valve cover 211 for the falling ash can be adjusted.

[0038] In one embodiment, the second counterweight assembly 400 includes a second counterweight rod 410 and a second counterweight block 420. A plurality of second mounting holes 411 are spaced on the second counterweight rod 410, and the second counterweight block 420 is detachably disposed on one of the second mounting holes 411.

[0039] In specific applications, by adjusting the mounting position of the second counterweight block 420 on the second counterweight rod 410, the load-bearing range of the second valve cover 221 for the falling ash can be adjusted.

[0040] In one embodiment, the number of the first counterweight assemblies 300 is two, and the two first counterweight assemblies 300 are disposed on opposite end faces of the first rotating shaft 210 (not shown in the figure); and / or, the number of the second counterweight assemblies 400 is two, and the two second counterweight assemblies 400 are disposed on opposite end faces of the second rotating shaft 220 (not shown in the figure).

[0041] Refer to the attached Figure 2 、attached Figure 4 , in one embodiment, the number of the limiting rods 500 is two, and the two limiting rods 500 are respectively disposed on opposite sides of the housing 100.

[0042] In one embodiment, the extending length of the limiting rod 500 increases from near the ash inlet 110 to far from the ash inlet 110.

[0043] Adopting the above technical solution, the surface of the limiting rod 500 facing the ash inlet 110 is inclined, which can guide the falling ash on the limiting rod 500 to fall towards the first valve cover 211 and the second valve cover 221, thereby reducing the amount of ash deposited on the limiting rod 500.

[0044] In one embodiment, the housing 100 includes a first housing 130 and a second housing 140 that are interconnected. The ash inlet 110 and the ash outlet 120 are disposed on the first housing 130. The number of the second housings 140 is two, and the two second housings 140 are respectively disposed on opposite sides of the first housing 130. The first rotating shaft 210 and the second rotating shaft 220 are respectively disposed in the two second housings 140.

[0045] Refer to the attached Figure 3, in one embodiment, a limiting plate 141 is provided below each of the two second casings 140, and the distance between the two limiting plates 141 increases from near the ash discharge port 120 to far from the ash discharge port 120. The limiting plate 141 can limit the rotation of the first valve cover 211 and the second valve cover 221 towards the ash discharge port 120.

[0046] By adopting the above technical solution, the rotation range of the first valve cover 211 and the second valve cover 221 towards the ash discharge port 120 is restricted by setting the limiting plate 141, and in cooperation with the limiting rod 500 to restrict the rotation range of the first valve cover 211 and the second valve cover 221 towards the ash inlet 110, the falling range of the falling ash can be further reduced, facilitating the collection of the falling ash by the trolley.

[0047] Refer to the appendix Figure 5 , in one embodiment, it further includes an upper ash discharge valve 600, and the upper ash discharge valve 600 is arranged on the side of the limiting rod 500 near the ash inlet 110.

[0048] It should be noted that the structure of the upper ash discharge valve 600 can be the same as the ash discharge structure composed of related components such as the first valve cover 211 and the second valve cover 221, or it can be a traditional gravity ash discharge valve. By setting the upper ash discharge valve 600, it helps to ensure the sealing performance of the boiler dust collector.

[0049] The present utility model also provides a boiler, including the boiler dust collector in any one of the above.

[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the said embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A boiler dust collector, characterized in that: include: The housing (100) comprises an ash inlet (110) and an ash outlet (120); a first rotating shaft (210) and a second rotating shaft (220), the first rotating shaft (210) and the second rotating shaft (220) being rotatably disposed on opposite sides of the housing (100), a first valve cover (211) extending from one side of the first rotating shaft (210) toward the second rotating shaft (220), and a second valve cover (221) extending from one side of the second rotating shaft (220) toward the first rotating shaft (210), the first valve cover (211) and the second valve cover (221) being rotatable to be flush with each other, so as to close the ash inlet (110) and the ash outlet (120); A first counterweight assembly (300) is disposed on an end surface of the first rotating shaft (210), and the first counterweight assembly (300) is capable of driving the first valve cover (211) to rotate toward the ash inlet (110); a second counterweight assembly (400) disposed on an end surface of the second rotating shaft (220), the second counterweight assembly (400) being capable of driving the second valve cover (221) to rotate toward the ash inlet (110); A limit rod (500) is disposed in the housing (100), and the limit rod (500) can respectively abut against the first valve cover (211) and the second valve cover (221) to limit the first valve cover (211) and the second valve cover (221) from rotating toward the ash inlet (110).

2. A boiler dust collector according to claim 1, characterized in that: The number of the limiting rods (500) is two, and the two limiting rods (500) are respectively arranged on two opposite sides of the housing (100).

3. A boiler dust collector according to claim 1 or 2, characterized in that: The extension length of the limiting rod (500) is arranged to increase progressively from close to the ash inlet (110) to far away from the ash inlet (110).

4. A boiler dust collector according to claim 1, characterized in that: The shell (100) comprises a first shell (130) and a second shell (140) which are interconnected, the ash inlet (110) and the ash outlet (120) are arranged on the first shell (130), the number of the second shells (140) is two, the two second shells (140) are respectively arranged on opposite sides of the first shell (130), and the first rotating shaft (210) and the second rotating shaft (220) are respectively arranged in the two second shells (140).

5. A boiler dust collector according to claim 4, characterized in that: A limit plate (141) is provided below each of the two second shells (140); the distance between the two limit plates (141) is arranged to increase from close to the ash outlet (120) to far away from the ash outlet (120); the limit plates (141) can limit the first valve cover (211) and the second valve cover (221) from rotating toward the ash outlet (120).

6. A boiler dust collector according to claim 1, characterized in that: The first counterweight assembly (300) comprises a first counterweight rod (310) and a first counterweight block (320); a plurality of first mounting holes (311) are arranged at intervals on the first counterweight rod (310); and the first counterweight block (320) is detachably mounted on one of the first mounting holes (311).

7. A boiler dust collector according to claim 1, characterized in that: The second counterweight assembly (400) comprises a second counterweight rod (410) and a second counterweight block (420); a plurality of second mounting holes (411) are arranged at intervals on the second counterweight rod (410); and the second counterweight block (420) is detachably mounted on one of the second mounting holes (411).

8. A boiler dust collector according to claim 1, characterized in that: The number of the first counterweight components (300) is two, and the two first counterweight components (300) are arranged at two opposite end surfaces of the first rotating shaft (210); and / or the number of the second counterweight components (400) is two, and the two second counterweight components (400) are arranged at two opposite end surfaces of the second rotating shaft (220).

9. A boiler dust collector according to claim 1, characterized in that: It also comprises an upper ash discharge valve (600), wherein the upper ash discharge valve (600) is arranged on a side of the limiting rod (500) close to the ash inlet (110).

10. A boiler, characterized in that: A boiler dust collector comprising the boiler dust collector according to any one of claims 1 to 9.

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