Explosive biomass air furnace

Abstract

The utility model relates to the technical field of hot blast furnaces, and discloses an explosive biomass blast furnace. The furnace body is arranged on one side in the shell; the upper flue is arranged at the upper part of the shell, and the upper part of the furnace body is communicated with the upper flue; the upper flue is arranged on the upper portion of the shell, the lower flue is arranged on the lower portion of the shell, and the upper flue and the lower flue are connected through a heat exchange pipe, so that the following technical effects that heat exchange between smoke and air is achieved through the heat exchange pipe between the upper flue and the lower flue, the air heating efficiency is improved, and therefore more hot air is generated; the design of the furnace body is beneficial to sufficient combustion of fuel, emission of smoke dust and unburnt particles is reduced, pollution to the environment is reduced, through the design of the ash cleaning rod and the cleaning head, ash in the heat exchange pipe is convenient to clean, a smoke channel is kept unblocked, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hot blast furnaces, for example, to an explosive biomass blast furnace. Background Art

[0002] Currently, biomass furnaces are thermal energy conversion devices that use biomass as fuel. They are primarily used to generate hot air or heated air to meet industrial production or heating needs. Biomass combustion furnaces generate heat by burning biomass fuel. The fuel burns in the furnace, releasing heat that is used to heat air or flue gases, which is then transferred to the desired process or heating system through a heat exchanger.

[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0004] Traditional biomass combustion furnaces usually have problems such as low thermal efficiency, insufficient flue gas treatment, complex operation and difficult maintenance. In addition, the heat exchange tubes of traditional combustion furnaces are difficult to clean and prone to blockage when used for a long time. Utility Model Content

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The disclosed embodiment provides an explosive biomass air furnace to solve the problem of insufficient combustion in the combustion furnace and the heat exchange tubes being easily blocked by smoke and dust when the heat exchange tubes are used for a long time.

[0007] In some embodiments, the explosive biomass air furnace includes: a shell; a furnace body, arranged on one side inside the shell; an upper flue, arranged at the upper part of the shell, and the upper part of the furnace body is connected to the upper flue; a lower flue, arranged at the lower part of the shell, and the upper flue and the lower flue are connected by a heat exchange pipe; a heating chamber, arranged between the upper flue and the lower flue, and the heat exchange pipes are arranged in parallel in the heating chamber; a blower, connected to one end of the heating chamber away from the furnace body, and an exhaust port is provided at the end of the heating chamber away from the blower, and the exhaust port passes through the upper flue and extends to the outside of the shell.

[0008] In some embodiments, the furnace body is arranged in the shell, a feeding pipe is connected to the middle of the furnace body, one end of the feeding pipe extends out of the shell, the upper part of the furnace body is connected to the upper flue, a furnace bin is provided at the bottom of the furnace body, a grate bar is provided between the furnace body and the furnace bin, an ignition tube is connected to the furnace body above the grate bar, and the ignition tube extends into the furnace body.

[0009] In some embodiments, an air inlet bag is provided on the outer side of the bottom of the furnace body. The air inlet bag is a circular tubular structure. An air supply pipe is provided on the side of the air inlet bag along the tangential direction. An air inlet hole is provided in the furnace body inside the air inlet bag. The air inlet hole is arranged along the tangential direction of the furnace body.

[0010] In some embodiments, there are two furnace bodies, which are respectively connected to the upper flue, and an air intake pump is provided on the side of the furnace chamber.

[0011] In some embodiments, a smoke exhaust port is provided at one end of the upper flue away from the furnace body, an upper partition is provided in the upper flue to separate the upper flue, and the separated upper flues are connected to the lower flue through heat exchange pipes, and a lower partition is provided in the lower flue to separate the lower flue, and the cavities separated by the lower flue are connected to the upper flue through heat exchange pipes.

[0012] In some embodiments, a plurality of insertion holes are provided on the upper portion of the upper flue, and the insertion holes are arranged corresponding to the heat exchange tubes. A cleaning rod is inserted into the insertion hole, and the cleaning rod is inserted through the heat exchange tube.

[0013] In some embodiments, a cleaning head is provided at one end of the cleaning rod inserted into the heat exchange tube, the outer diameter of the cleaning head matches the inner diameter of the heat exchange tube, and a sealing plate is provided at the other end of the cleaning rod, and the sealing plate is pressed into the insertion hole.

[0014] In some embodiments, an ash discharge port is provided at the lower portion of the lower flue.

[0015] In some embodiments, an ash outlet is connected to the furnace bin, and an observation tube is provided on the side of the furnace body. The observation tube passes through the air inlet bag and is connected to the furnace body.

[0016] In some embodiments, the sealing plate is connected to the upper flue by fastening bolts.

[0017] The explosive biomass air furnace provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] Heat exchange between flue gas and air is achieved through the heat exchange tubes between the upper flue and the lower flue, which improves the efficiency of air heating and generates more hot air. The furnace body design helps to fully burn the fuel, reduce the emission of smoke and unburned particles, and reduce pollution to the environment. The design of the cleaning rod and cleaning head facilitates the cleaning of smoke in the heat exchange tubes, keeps the flue gas channel unobstructed, and improves the heat exchange efficiency.

[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0021] Figure 1 This is a schematic diagram of the structure of an explosive biomass air furnace provided by an embodiment of the present disclosure;

[0022] Figure 2 This is a schematic diagram of the rear view of the explosive biomass air furnace provided by an embodiment of the present disclosure;

[0023] Figure 3 Schematic diagram of the cross-sectional structure of the explosive biomass air furnace provided by an embodiment of the present disclosure;

[0024] Figure 4 This is a schematic diagram of the internal structure of the explosive biomass air furnace provided by an embodiment of the present disclosure;

[0025] Figure 5 It is a schematic diagram of the internal side structure of the explosive biomass air furnace provided in an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 100. Shell; 200. Furnace body; 300. Upper flue; 400. Lower flue; 301. Heat exchange tube; 401. Heating chamber; 402. Blower; 403. Exhaust port; 201. Feeding pipe; 202. Furnace bin; 203. Grate bar; 204. Ignition tube; 205. Air inlet bag; 206. Air supply pipe; 207. Air inlet hole; 208. Air inlet pump; 302. Exhaust port; 303. Upper partition; 304. Insert hole; 305. Ash cleaning rod; 306. Cleaning head; 307. Sealing plate; 308. Fastening bolt; 405. Ash discharge port; 209. Ash outlet; 210. Observation tube. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0034] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0036] Combine Figure 1-5As shown, the embodiment of the present disclosure provides an explosive biomass air furnace, comprising: a shell 100; a furnace body 200, arranged on one side inside the shell 100; an upper flue 300, arranged at the upper part of the shell 100, and the upper part of the furnace body 200 is connected to the upper flue 300; a lower flue 400, arranged at the lower part of the shell 100, and the upper flue 300 and the lower flue 400 are connected by a heat exchange tube 301; a heating chamber 401, arranged between the upper flue 300 and the lower flue 400, and the heat exchange tubes 301 are arranged in parallel in the heating chamber 401; a blower 402, connected to one end of the heating chamber 401 away from the furnace body 200, and an exhaust port 403 is provided at the end of the heating chamber 401 away from the blower 402, and the exhaust port 403 passes through the upper flue 300 and extends to the outside of the shell 100.

[0037] The explosive biomass air furnace provided by the embodiment of the present disclosure has a shell 100 of a rectangular shell structure. Combustion can be carried out in the furnace body 200. The furnace body 200 is arranged on one side of the shell 100. The upper flue 300 is arranged on the upper part of the shell 100. The upper part of the furnace body 200 can be connected to the upper flue 300. The flue gas in the furnace body 200 can enter the upper flue 300. The flue gas entering the upper flue 300 can enter the lower flue 400 through the heat exchange pipe 301. The flue gas can pass through the heat exchange pipe 301 and can be discharged from the upper flue 400. The flue 300 and the lower flue 400 circulate, thereby heating the heat exchange tube 301, so that the air passing through the heat exchange tube 301 can be heated. The heating chamber 401 between the upper flue 300 and the lower flue 400 can accommodate the entry of air, and the heating chamber 401 can heat the air. The blower 402 can supply air into the heating chamber 401, which is then heated by the heat exchange tube 301, and the heated air is discharged from the exhaust port 403, so that the air can be heated to generate hot air.

[0038] Optionally, the furnace body 200 is arranged in the shell 100, and a feeding pipe 201 is connected to the middle of the furnace body 200, one end of the feeding pipe 201 extends out of the shell 100, the upper part of the furnace body 200 is connected to the upper flue 300, and a furnace bin 202 is provided at the bottom of the furnace body 200, and a grate bar 203 is provided between the furnace body 200 and the furnace bin 202, and an ignition tube 204 is connected to the furnace body 200 above the grate bar 203, and the ignition tube 204 extends into the furnace body 200.

[0039] In this way, the furnace body 200 is a circular structure, and the feeding pipe 201 in the middle of the furnace body 200 can add fuel to the furnace body 200, thereby realizing the fuel supply in the furnace body 200. The upper part of the furnace body 200 is connected to the upper flue 300, and the hot air and flue gas in the furnace body 200 can enter the upper flue 300. The flue gas in the upper flue 300 then enters the lower flue 400 through the heat exchange tube 301, thereby heating the air in the heating chamber 401. The furnace bin 202 at the bottom of the furnace body 200 can accommodate the ashes after the fuel is burned. A grate bar 203 is arranged between the furnace bin 202 and the furnace body 200. The grate bar 203 can support the unburned fuel. The ignition tube 204 on the upper part of the grate bar 203 can ignite the fuel in the furnace body 200, thereby facilitating the ignition of the furnace.

[0040] Optionally, an air inlet bag 205 is provided on the outer side of the bottom of the furnace body 200. The air inlet bag 205 is a circular tubular structure. An air supply pipe 206 is provided on the side of the air inlet bag 205 along the tangential direction. An air inlet hole 207 is provided in the furnace body 200 inside the air inlet bag 205. The air inlet hole 207 is arranged along the tangential direction of the furnace body 200.

[0041] In this way, the air inlet bag 205 outside the furnace body 200 can supply air into the furnace body 200. An air inlet is provided on the side wall of the furnace body 200 inside the air inlet bag 205. The air in the air inlet bag 205 can be supplied into the furnace body 200 through the air inlet provided along the tangent. In this way, the air can rotate upward in the furnace body 200, which can blow the fuel to rotate and float and burn in the furnace body 200. The air supply pipe 206 on the air inlet bag 205 can supply air to the air inlet bag 205.

[0042] Optionally, there are two furnace bodies 200 , and the two furnace bodies 200 are respectively connected to the upper flue 300 , and an air intake pump 208 is provided on the side of the furnace chamber 202 .

[0043] In this way, the furnace body 200 has two furnaces that can burn individually or simultaneously, which can increase the heating capacity of the air furnace. The air inlet pump 208 provided on the furnace bin 202 at the lower part of the furnace body 200 can realize the supply of air.

[0044] Optionally, a smoke exhaust port 302 is provided at one end of the upper flue 300 away from the furnace body 200, and an upper partition 303 is provided in the upper flue 300 to separate the upper flue 300. The separated upper flues 300 are connected to the lower flue 400 through the heat exchange tube 301. A lower partition is provided in the lower flue 400 to separate the lower flue 400, and the cavities separated by the lower flue 400 are connected to the upper flue 300 through the heat exchange tube 301.

[0045] In this way, the smoke exhaust port 302 on the upper flue 300 can discharge the smoke after heat exchange circulating between the upper flue 300 and the lower flue 400. The two upper partitions 303 on the upper flue 300 can divide the upper flue 300 into three cavities. The lower flue 400 is divided into two cavities by a partition. The smoke in the furnace body 200 enters from the first cavity of the upper flue 300 and then enters the lower flue 400 through the heat exchange pipe 301 thereon. The heat exchange pipe 301 on the first cavity of the lower flue 400 is also connected to the cavity in the middle of the upper flue 300. In this way, the flue gas in the first cavity of the lower flue 400 can enter the cavity in the middle of the upper flue 300, and the cavity in the middle of the upper flue 300 enters the second cavity of the lower flue 400 through the heat exchange tube 301. The flue gas in the second cavity of the lower flue 400 can then enter the third cavity of the upper flue 300 through the heat exchange tube 301. The third cavity of the upper flue 300 is connected to a smoke exhaust port 302, so that the smoke is discharged through the smoke exhaust port 302, and the air in the heating cavity 401 can be heated by the smoke flowing through the heat exchange tube 301.

[0046] Optionally, a plurality of insertion holes 304 are provided on the upper portion of the upper flue 300 , and the insertion holes 304 are correspondingly provided between the heat exchange tubes 301 . A cleaning rod 305 is inserted into the insertion hole 304 , and the cleaning rod 305 is inserted through the heat exchange tubes 301 .

[0047] In this way, the insertion hole 304 on the upper flue 300 can accommodate the cleaning rod 305 to be inserted into the heat exchange tube 301, and the soot in the heat exchange tube 301 can be cleaned by the reciprocating insertion of the cleaning rod 305.

[0048] Optionally, one end of the cleaning rod 305 inserted into the heat exchange tube 301 is provided with a cleaning head 306, the outer diameter of the cleaning head 306 matches the inner diameter of the heat exchange tube 301, and the other end of the cleaning rod 305 is provided with a sealing plate 307, which is pressed into the insertion hole 304. In this way, the diameter of the cleaning head 306 on the cleaning rod 305 matches the inner diameter of the heat exchange tube 301. By pulling the cleaning rod 305 up and down, the cleaning rod 305 can drive the cleaning head 306 to reciprocate in the heat exchange tube 301, so that dust in the heat exchange tube 301 can be cleaned out of the heat exchange tube 301. The sealing plate 307 on the cleaning rod 305 can fix the cleaning rod 305 in the heat exchange tube 301. The sealing cover of the sealing plate 307 is provided at the upper part of the upper flue 300, which makes it convenient to take and put the cleaning rod 305.

[0049] Optionally, an ash discharge port 405 is provided at the lower portion of the lower flue 400 .

[0050] In this way, the ash discharge port 405 on the lower flue 400 can clean the deposited dust.

[0051] Optionally, an ash outlet 209 is connected to the furnace bin 202 , and an observation tube 210 is provided on the side of the furnace body 200 . The observation tube 210 passes through the air inlet bag 205 and is connected to the furnace body 200 .

[0052] In this way, the ash outlet 209 on the furnace bin 202 can clean the ashes after combustion, and the observation tube 210 passes through the air inlet bag 205 and extends into the furnace body 200. The observation tube 210 on the furnace body 200 can observe the combustion situation in the furnace body 200, and the observation tube 210 can clean the fuel in the furnace body 200.

[0053] Optionally, the sealing plate 307 is connected to the upper flue 300 via fastening bolts 308 .

[0054] In this way, the fastening bolts 308 on the sealing plate 307 can tightly connect the sealing plate 307 to the upper flue 300 .

[0055] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An explosive biomass air furnace, characterized in that: include: Housing (100); A furnace body (200) is arranged on one side inside the shell (100); An upper flue (300) is provided on the upper portion of the shell (100), and the upper portion of the furnace body (200) is in communication with the upper flue (300); A lower flue (400) is provided at the lower portion of the shell (100), and the upper flue (300) and the lower flue (400) are connected via a heat exchange pipe (301); A heating chamber (401) is arranged between the upper flue (300) and the lower flue (400), and the heat exchange tubes (301) are arranged in parallel in the heating chamber (401); A blower (402) is connected to one end of the heating chamber (401) away from the furnace body (200), and an exhaust port (403) is provided at one end of the heating chamber (401) away from the blower (402). The exhaust port (403) passes through the upper flue (300) and extends outside the shell (100).

2. The explosive biomass air furnace according to claim 1, characterized in that: The furnace body (200) is arranged in the shell (100), a feeding pipe (201) is connected to the middle of the furnace body (200), one end of the feeding pipe (201) extends out of the shell (100), the upper part of the furnace body (200) is connected to the upper flue (300), a furnace bin (202) is provided at the bottom of the furnace body (200), a grate bar (203) is provided between the furnace body (200) and the furnace bin (202), an ignition tube (204) is connected to the furnace body (200) above the grate bar (203), and the ignition tube (204) extends into the furnace body (200).

3. The explosive biomass air furnace according to claim 2, characterized in that: An air inlet bag (205) is provided on the outer side of the bottom of the furnace body (200), and the air inlet bag (205) is a circular tubular structure. An air supply pipe (206) is provided on the side of the air inlet bag (205) along the tangential direction. An air inlet hole (207) is provided in the furnace body (200) inside the air inlet bag (205), and the air inlet hole (207) is arranged along the tangential direction of the furnace body (200).

4. The explosive biomass air furnace according to claim 3, characterized in that: There are two furnace bodies, and the two furnace bodies (200) are respectively connected to the upper flue (300). An air intake pump (208) is provided on the side of the furnace bin (202).

5. The explosive biomass air furnace according to claim 1, characterized in that: A smoke outlet (302) is provided at one end of the upper flue (300) away from the furnace body (200); an upper partition (303) is provided in the upper flue (300) to separate the upper flue (300); the separated upper flues (300) are connected to the lower flue (400) via heat exchange tubes (301); a lower partition (404) is provided in the lower flue (400) to separate the lower flue (400); and the cavities separated by the lower flue (400) are connected to the upper flue (300) via heat exchange tubes (301).

6. The explosive biomass air furnace according to claim 5, characterized in that: A plurality of insertion holes (304) are provided on the upper portion of the upper flue (300), the insertion holes (304) and the heat exchange tubes (301) are arranged correspondingly, a cleaning rod (305) is inserted into the insertion hole (304), and the cleaning rod (305) is inserted through the heat exchange tube (301).

7. The explosive biomass air furnace according to claim 6, characterized in that: One end of the cleaning rod (305) inserted into the heat exchange tube (301) is provided with a cleaning head (306), the outer diameter of the cleaning head (306) matches the inner diameter of the heat exchange tube (301), and the other end of the cleaning rod (305) is provided with a sealing plate (307), and the sealing plate (307) is pressed into the insertion hole (304).

8. The explosive biomass air furnace according to claim 5, characterized in that: An ash discharge port (405) is provided at the lower portion of the lower flue (400).

9. The explosive biomass air furnace according to claim 2, characterized in that: An ash outlet (209) is connected to the furnace bin (202), and an observation tube (210) is provided on the side of the furnace body (200). The observation tube (210) passes through the air inlet bag (205) and is in communication with the furnace body (200).

10. The explosive biomass air furnace according to claim 7, characterized in that: The sealing plate (307) is connected to the upper flue (300) via fastening bolts (308).

Images