A circulating fluidized bed boiler bottom material filling device

Abstract

The present invention discloses a bottom material filling device for a circulating fluidized bed boiler, comprising a material transfer box, both sides of which are connected with conveying parts; the conveying parts can convey the bottom material; wherein, one group of the conveying parts is located in the furnace, and the other group of the conveying parts is located in the bottom material bin. The present invention realizes automatic filling of the bottom material and adopts in-pipe transportation, which greatly reduces the dust concentration on the working site, thereby improving the degree of automation of the operation, achieving the purpose of reducing labor costs, improving work efficiency, reducing dust pollution damage, and reducing safety hazards. At the same time, the arrangement of the conveying part ensures that the bottom material can be evenly laid in the furnace.

Description

Technical Field

[0001] The invention relates to the technical field of fluidized bed feeding, in particular to a bottom material feeding device for a circulating fluidized bed boiler. Background Art

[0002] Before starting the circulating fluidized bed combustion boiler, a certain amount of bottom material needs to be added to the furnace according to the operating procedures. The existing method of adding bottom material in our factory is manual addition. Before starting the boiler each time, nearly 3 tons of bottom material needs to be transported from the zero meter of the boiler to the platform at 3.5 meters, and then lifted into the furnace through the furnace door. The main disadvantages are uneven material laying, high labor intensity, large number of operators required, low work efficiency, large dust pollution during operation, and increased safety hazards due to high-altitude operations. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing bottom material filling device for circulating fluidized bed boiler, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a bottom material filling device for a circulating fluidized bed boiler.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0006] A material transfer box, both sides of which are connected to a conveying part;

[0007] A conveying part, which can convey the base material;

[0008] Among them, one group of the conveying parts is located in the furnace, and the other group of the conveying parts is located in the bottom silo.

[0009] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, wherein: a discharge pipe and a feed pipe are respectively provided on both sides of the material transfer box;

[0010] The two groups of conveying parts are connected to the discharge pipe and the feed pipe respectively.

[0011] As a preferred solution of the bottom material filling device for a circulating fluidized bed boiler of the present invention, one group of the conveying parts includes two groups of through pipes, and the outer sides of the two groups of through pipes are fixedly connected with multiple groups of tie rods;

[0012] A group of through pipes are connected to the material transfer box.

[0013] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, one group of ends of the through pipes are connected with a header.

[0014] As a preferred solution of the bottom material filling device for a circulating fluidized bed boiler of the present invention, a frame is fixedly provided at the bottom of the material transfer box.

[0015] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, wherein: a rotating pipe is rotatably connected in the material transfer box;

[0016] The frame is provided with a driving part, and the driving part can drive the rotating tube to rotate.

[0017] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, a steel auger is provided in the through pipe, and the end of the steel auger is connected to the rotating pipe.

[0018] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, a group of through pipes are sleeved with a clamp on the outside, and the through pipes are connected with the discharge pipe and the feed pipe through the clamp.

[0019] As a preferred solution of the bottom material filling device for the circulating fluidized bed boiler of the present invention, the discharge pipe is located below the feed pipe, and a filter screen is provided inside the material transfer box.

[0020] As a preferred solution of the bottom material filling device for a circulating fluidized bed boiler of the present invention, the driving part comprises a double-bearing motor installed on the top of the frame, and a transmission belt is connected between the double-bearing motor and the rotating tube.

[0021] The beneficial effects of the present invention are as follows: the automatic filling of the bottom material is realized, and at the same time, the transportation is carried out in the pipe, which greatly reduces the dust concentration at the working site, thereby improving the degree of automation of the operation, achieving the purpose of reducing labor costs, improving work efficiency, reducing dust pollution damage, and reducing safety hazards. At the same time, the setting of the conveying part ensures that the bottom material can be evenly laid in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the material transfer box in the present invention.

[0025] Figure 3 It is a structural schematic diagram of the transmission part in the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1

[0031] Reference Figure 1-Figure 3 , provides a bottom material filling device for a circulating fluidized bed boiler, comprising a material transfer box 100, both sides of which are connected to a conveying part 200;

[0032] A conveying part 200, which can convey the base material;

[0033] Among them, one set of conveying parts 200 is located in the furnace, and another set of conveying parts 200 is located in the bottom silo;

[0034] The conveying parts 200 are located at both ends of the material transfer box 100. One group of conveying parts 200 is the feeding end A, and the other group of conveying parts 200 is the discharging end B. The feeding end A is inserted into the bottom material in the bottom material bin, and the material transfer rack is moved to a suitable position, and the discharging end B is extended into the furnace through the furnace door and placed in a suitable position. After the placement is completed, the two groups of conveying parts 200 are started, so that the bottom material in the bottom material bin can be conveyed to the furnace after passing through the material transfer box 100;

[0035] The discharge end B can be directly extended into the furnace, and the position of the discharge port in the furnace can be manually adjusted to evenly spread the bottom material on the furnace bed.

[0036] Furthermore, a discharge pipe 101 and a feed pipe 102 are respectively provided on both sides of the material transfer box 100; two sets of conveying parts 200 are respectively connected to the discharge pipe 101 and the feed pipe 102;

[0037] The conveying part 200 of the feed end A is connected to the feed pipe 102 , and the conveying part 200 of the discharge end B is connected to the discharge pipe 101 , so that the bottom material can pass through the material transfer box 100 smoothly.

[0038] Furthermore, a set of conveying parts 200 includes two sets of through pipes 201, and multiple sets of tie rods 202 are fixedly connected to the outer sides of the two sets of through pipes 201; one set of through pipes 201 is connected to the material transfer box 100;

[0039] A plurality of tie rods 202 are fixedly provided on the outside of the two groups of through pipes 201 , so that the bottom material can enter or be discharged from the conveying part 200 through the gaps between the plurality of tie rods 202 , so as to convey the bottom material.

[0040] Furthermore, a group of through pipes 201 are connected to the end portions thereof with a plug 203 ; the plug 203 is generally conical in shape, so as to facilitate the insertion of the conveying portion 200 into the bottom material.

[0041] Furthermore, a frame 104 is fixedly provided at the bottom of the material transfer box 100 ; a plurality of sets of moving wheels are provided at the bottom of the frame 104 , and the material transfer box 100 can then be moved by the frame 104 .

[0042] Furthermore, a rotating tube 103 is rotatably connected to the material transfer box 100; a driving unit 300 is provided on the frame 104, and the driving unit 300 can drive the rotating tube 103 to rotate;

[0043] The two side walls of the material transfer box 100 are rotatably connected with a rotating tube 103, and the conveying part 200 is connected to the driving part 300. After the driving part 300 drives the rotating tube 103, it can drive the conveying part 200, and then complete the automatic conveying of the bottom material.

[0044] Furthermore, a steel auger 204 is provided in the through pipe 201, and the end of the steel auger 204 is connected to the rotating pipe 103; when the rotating rod is driven by the driving part 300, the steel auger 204 can be driven to rotate to transport the bottom material. Since the steel auger 204 is arranged in the through pipe 201 and located between the multiple groups of tie bars 202, the bottom material falls into the gap between the multiple groups of tie bars 202 and can be automatically transported by the steel auger 204;

[0045] Among them, the augers are all made of flexible materials and can bend within a certain range, thereby increasing the range of base material transmission. At the same time, their length can be extended or shortened as needed, so the position of the outlet B at the discharge end can be adjusted at will, which is convenient for laying the base material position.

[0046] Furthermore, the driving unit 300 includes a double-bearing motor 301 mounted on the top of the frame 104, and a transmission belt 302 is connected between the double-bearing motor 301 and the rotating tube 103;

[0047] The double-bearing motor 301 drives the rotating tube 103 to rotate through the transmission belt 302, and then drives the two sets of steel augers 204 to rotate, so as to realize the conveying of the bottom material. At the same time, the speed of the double-bearing motor 301 can be adjusted, and the rotation speed of the steel augers 204 can be adjusted to realize the adjustment of the bottom material transmission speed. By adjusting the position of the discharge end B in the furnace, the bottom material can be evenly spread on the furnace bed.

[0048] In this embodiment, the discharge pipe 101, the feed pipe 102 and the through pipe 201 may be cowhide tubes. Since the cowhide tubes are flexible, their lengths can be extended or shortened as needed, so that the position of the outlet B of the discharge end can be adjusted at will to achieve uniform distribution of the bottom material.

[0049] The above-mentioned device is used to realize automatic filling of bottom material and adopt in-pipe transportation, which greatly reduces the dust concentration at the work site, thereby improving the degree of automation of the operation, achieving the purpose of reducing labor costs, improving work efficiency, reducing dust pollution damage, and reducing safety hazards. At the same time, the setting of the conveying part 200 ensures that the bottom material can be evenly laid in the furnace.

[0050] Example 2

[0051] Reference Figure 1-Figure 3 , this embodiment is different from the first embodiment in that: the discharge pipe 101 is located below the feed pipe 102, and a filter screen 400 is provided inside the material transfer box 100;

[0052] The feed pipe 102 is located above the filter screen 400, and the discharge pipe 101 is located below the filter screen 400. Both ends of the filter screen 400 are fixed on the side walls of the material transfer box 100. When the conveying part 200 conveys the material from the feed pipe 102 to the material transfer box 100, it falls on the filter screen. The weight of the bottom material causes it to pass through the filter screen 400 and fall into the corresponding position of the discharge pipe 101. Another set of conveying parts 200 conveys the filtered bottom material. The setting of the filter screen 400 enables the bottom material to be screened during the conveying process.

[0053] The rest of the structure is the same as that of Example 1.

[0054] Example 3

[0055] Reference Figure 1-Figure 3 This embodiment is different from the above embodiments in that: a clamp 205 is sleeved on the outer side of a group of through pipes 201, and the through pipes 201 are connected to the discharge pipe 101 and the feed pipe 102 through the clamp 205; a clamp 205 is fixedly provided on the outer side of the through pipe 201 near one end of the material transfer box 100, and the two groups of conveying parts 200 are fixedly connected to the feed pipe 102 and the discharge pipe 101 through the clamp 205, respectively, to ensure the stable operation of the equipment.

[0056] The rest of the structure is the same as that of Example 2.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0058] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0059] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A circulating fluidized bed boiler bottom material filling device, characterized in that: include, A material transfer box (100), both sides of which are connected to a conveying part (200); A conveying part (200) capable of conveying the base material; Wherein, one group of the conveying parts (200) is located in the furnace, and another group of the conveying parts (200) is located in the bottom material bin.

2. The bottom material filling device for a circulating fluidized bed boiler according to claim 1, characterized in that: A discharge pipe (101) and a feed pipe (102) are respectively provided on both sides of the material transfer box (100); The two groups of conveying parts (200) are respectively connected to the discharge pipe (101) and the feed pipe (102).

3. The bottom material filling device for a circulating fluidized bed boiler according to claim 2, characterized in that: One group of the conveying parts (200) comprises two groups of through pipes (201), and the outer sides of the two groups of through pipes (201) are fixedly connected with multiple groups of tie rods (202); A group of through pipes (201) is connected to the material transfer box (100).

4. The bottom material filling device for a circulating fluidized bed boiler according to claim 3, characterized in that: The ends of a group of through pipes (201) are connected with a plug (203).

5. The bottom material filling device for a circulating fluidized bed boiler according to claim 4, characterized in that: A frame (104) is fixedly provided at the bottom of the material transfer box (100).

6. The bottom material filling device for a circulating fluidized bed boiler according to claim 5, characterized in that: A rotating tube (103) is rotatably connected in the material transfer box (100); The vehicle frame (104) is provided with a driving unit (300), and the driving unit (300) can drive the rotating tube (103) to rotate.

7. The bottom material filling device for a circulating fluidized bed boiler according to claim 6, characterized in that: A steel auger (204) is provided in the through pipe (201), and the end of the steel auger (204) is connected to the rotating pipe (103).

8. The bottom material filling device for a circulating fluidized bed boiler according to claim 6 or 7, characterized in that: A clamp (205) is sleeved on the outer side of a group of through pipes (201), and the through pipes (201) are connected to the discharge pipe (101) and the feed pipe (102) via the clamp (205).

9. The bottom material filling device for a circulating fluidized bed boiler according to claim 8, characterized in that: The discharge pipe (101) is located below the feed pipe (102), and a filter screen (400) is provided inside the material transfer box (100).

10. The bottom material filling device for a circulating fluidized bed boiler according to claim 9, characterized in that: The driving unit (300) comprises a double-bearing motor (301) mounted on the top of the vehicle frame (104), and a transmission belt (302) is connected between the double-bearing motor (301) and the rotating tube (103).

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