Efficient energy-saving temperature-controllable hot blast stove

Abstract

The invention discloses an efficient energy-saving temperature-controllable hot blast stove, relates to the technical field of hot blast stoves, and solves the problems of low ash removal efficiency and insufficient maintenance convenience of a hot blast stove in the prior art. Comprising a base and a furnace body fixedly connected to the base. The furnace body comprises a combustion chamber and an ash cleaning chamber, an outer cleaning cavity and an inner cleaning cavity which are communicated with each other are arranged in the ash cleaning chamber, and an ash cleaning port of the combustion chamber is located at the top of the inner cleaning cavity; the dust removing mechanism comprises an outer cover fixedly arranged on the dust removing opening in a sleeving mode, a dust collecting hopper arranged below the outer cover, a material guiding channel obliquely and fixedly connected to the bottom of the dust collecting hopper and a dust vibrating assembly arranged on the top face of the inner cleaning cavity, the tail end of the material guiding channel extends into the outer cleaning cavity, and the tail end of the material guiding channel is fixedly connected with a sealing cover; the ash vibration assembly acts on the ash removal opening and is used for enabling ash chips generated after combustion to fall into the material guide channel through the ash collecting hopper. According to the scheme design, the ash removal opening can be effectively prevented from being blocked, and the manual cleaning difficulty is remarkably reduced.

Description

Technical Field

[0001] This invention belongs to the field of hot air furnace technology, and particularly relates to a high-efficiency and energy-saving temperature-controlled hot air furnace. Background Technology

[0002] High-efficiency, energy-saving, temperature-controlled hot air furnaces are industrial heating devices that use fuels (such as natural gas, diesel, biomass pellets, etc.) or electricity as a heat source to generate clean, high-temperature hot air and precisely control the output air temperature. Their core design philosophy focuses on improving thermal efficiency and achieving precise temperature control to meet the stringent requirements of modern industry in terms of energy consumption, environmental protection, and process quality.

[0003] Currently, traditional hot blast stoves using biomass pellets as fuel have the following main shortcomings in the process of heating equipment: (1) Low dust removal efficiency and easy blockage: Traditional equipment lacks effective anti-blocking design during dust removal. Dust and debris are easy to accumulate in the dust removal port, resulting in poor discharge and frequent manual cleaning, which not only increases the maintenance burden but also causes more downtime.

[0004] (2) Inconvenient maintenance and operation: The existing dust removal mechanism is difficult to disassemble and replace parts in a narrow space. During maintenance, it is often necessary to remove a lot of adjacent parts, which is time-consuming and laborious, affecting the availability of the equipment.

[0005] (3) The dust removal process relies on manual intervention: the lack of a continuous and automatic vibration dust removal mechanism results in discontinuous dust falling, which can easily lead to blockages and unstable cleaning effect. At the same time, it increases the labor intensity and safety risks of operators.

[0006] (4) Insufficient system integration: There is often a lack of effective sealing and guiding connection between the dust removal mechanism and the collection device, which can easily cause dust to escape and pollute the environment. At the same time, the connection between each link in the dust removal process is not smooth, which affects the overall cleanliness of the workshop and the operating efficiency of the equipment.

[0007] In summary, existing hot blast stoves suffer from problems such as low ash removal efficiency and insufficient ease of maintenance. Summary of the Invention

[0008] This invention provides a high-efficiency and energy-saving temperature-controlled hot air furnace, which can solve the problems of low ash removal efficiency and insufficient maintenance convenience in existing hot air furnaces.

[0009] To achieve the above objectives, according to an embodiment of the first aspect of the present invention, a high-efficiency and energy-saving controllable temperature hot air furnace is provided, comprising a base and a furnace body fixedly connected to the base; The furnace body includes a combustion chamber and an ash removal chamber. The ash removal chamber is provided with an outer cleaning cavity and an inner cleaning cavity that are interconnected. The ash removal port of the combustion chamber is located at the top of the inner cleaning cavity. The dust removal mechanism includes an outer cover fixedly sleeved on the dust removal port, a dust collection hopper disposed below the outer cover, a material guide channel inclinedly and fixedly connected to the bottom of the dust collection hopper, and a dust vibration assembly disposed on the top surface of the inner cleaning chamber. The end of the material guide channel extends into the outer cleaning chamber, and a sealing cover is fixedly connected to its end. The ash-vibrating assembly acts on the ash-cleaning port to allow the ash residue after combustion to fall into the material guiding channel through the ash collection hopper.

[0010] A further improvement is that the ash-vibrating assembly includes a base fixedly connected to the inner walls of both sides of the inner cleaning chamber, an eccentric block rotatably disposed in each base port, a synchronous motor fixedly connected to the side of each base and connected to the main shaft and the eccentric block, a guide column cylinder vertically fixedly connected to both sides of the outer cover, a vibrating rod movably disposed in the guide column cylinder and a compression spring sleeved on the vibrating rod, one end of the vibrating rod passing through the guide column cylinder and a striking ball fixedly connected at that end.

[0011] A further improvement is that the other end of the vibrating rod has a pressing notch that cooperates with the eccentric block, and the part of the vibrating rod located inside the guide column is fixedly fitted with a pressure plate. One end of the compression spring is fixedly connected to the side of the pressure plate, and the other end is fixedly connected to the inner wall of the guide column.

[0012] A further improvement is that a sleeve is slidably disposed inside the port of the ash collection hopper, and the outer wall of the sleeve is sealed to the inner wall of the ash collection hopper by a sealing ring.

[0013] A further improvement is that a pressure plate is horizontally fixedly connected inside the inner cleaning cavity, and a lifting cylinder is vertically fixedly connected to both sides of the pressure plate. The top of the piston rod of the lifting cylinder is fixedly connected to both sides of the sleeve respectively. The material guide channel and the ash collection hopper are fixedly connected to the pressure plate by screws, and the port of the material guide channel and the port of the ash collection hopper are connected.

[0014] A further improvement is that a cleaning port is provided on the side of the inner cleaning cavity, and a second magnetic strip is fixedly connected to the outer periphery of the cleaning port. A cleaning door is provided on the side of the dust removal chamber corresponding to the cleaning port by means of a hinge. A first magnetic strip is fixedly connected to the inner edge of the cleaning door and attracts the second magnetic strip.

[0015] A further improvement is that the ash removal port of the combustion chamber is located on the inner top surface of the inner cleaning chamber, and a collection box is provided in the outer cleaning chamber.

[0016] A further improvement is that an inspection port is provided on the furnace body below the furnace door, and an inspection door panel is fixedly connected to the inspection port by fastening screws.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The design of this invention uses a valve on the ash removal port to start a pair of synchronous motors in the inner cleaning chamber. The motor shaft drives the eccentric block to rotate at a constant speed, causing the vibrating rod to continuously compress the compression spring under the intermittent compression of the eccentric block, generating a rebound force. This, in turn, causes the striking ball at the end to continuously and intermittently strike the ash removal port, promoting the smooth fall of ash. The ash falls into the guide channel through the ash collection hopper and finally enters the collection box. This structural design effectively prevents clogging of the ash removal port and significantly reduces the difficulty of manual cleaning.

[0018] (2) In the design of the present invention, when repairing or replacing parts of the dust removal mechanism, the inspection door panel can be removed first, the lifting cylinder can be started, and its rod can be driven to retract, causing the sleeve to detach from the outer cover and the dust removal port, allowing the sleeve to retract into the dust collection hopper. This design facilitates disassembly and replacement operations in a confined space. The disassembled parts can be temporarily placed on the pressure plate, and the overall process is simple and efficient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire hot blast stove structure of the present invention; Figure 2 This is a schematic cross-sectional view of the hot blast stove of the present invention; Figure 3 This is a schematic diagram of the main cross-sectional view of the internal cleaning mechanism of the present invention. Figure 4 This is a front view structural diagram of the sleeve and outer cover (in the sleeved state) of the present invention; Figure 5 This is a top view of the cross-sectional structure of the dust-vibrating assembly on one side of the internal cleaning cavity of the present invention.

[0020] Marked in the image: 1. Base; 2. Furnace body; 21. External cleaning chamber; 22. Cleaning door; 23. Combustion chamber; 231. Ash removal port; 24. Furnace door; 25. Inspection door panel; 201. External cleaning chamber; 202. Internal cleaning chamber; 3. First magnetic strip; 31. Second magnetic strip; 4. Dust removal mechanism; 41. Outer cover; 42. Dust collection hopper; 43. Material guide channel; 431. Sealing cover; 44. Dust vibration assembly; 441. Base; 442. Eccentric block; 443. Guide column; 444. Vibrating rod; 445. Compression spring; 446. Striking ball; 447. Pressure plate; 448. Extrusion notch; 449. Synchronous motor; 5. Sleeve fittings; 51. Sealing rings; 52. Pressure plate; 53. Lifting cylinder. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] like Figures 1 to 5 As shown, a high-efficiency and energy-saving controllable temperature hot air furnace includes a base 1 and a furnace body 2 fixedly connected to the base 1; The furnace body 2 includes a combustion chamber 23 and a cleaning chamber 21. The cleaning chamber 21 is provided with an outer cleaning chamber 201 and an inner cleaning chamber 202 that are interconnected. The cleaning port 231 of the combustion chamber 23 is located at the top of the inner cleaning chamber 202, and a valve is provided on the cleaning port 231. It should be noted that the entire hot blast stove also includes a heating system (including burners and heat exchangers), an aerodynamic system (including combustion fans and circulating fans / blowers), a control system (including temperature sensors / thermocouples, PLC / microcomputer controllers), and auxiliary and safety systems; it also includes a furnace door 24 fixedly installed on the furnace body 2 and corresponding to the combustion chamber 23. In addition, the furnace body 2 also includes a hot blast chamber and other chambers, which are selected and used according to the site requirements. The dust removal mechanism 4 includes an outer cover 41 fixedly sleeved on the dust removal port 231, a dust collection hopper 42 disposed below the outer cover 41, a material guide channel 43 inclinedly and fixedly connected to the bottom of the dust collection hopper 42, and a dust vibration assembly 44 disposed on the top surface of the inner cleaning cavity 202. The end of the material guide channel 43 extends into the outer cleaning cavity 201, and a sealing cover 431 is fixedly connected to its end. The ash-vibrating assembly 44 acts on the ash-cleaning port 231 to allow the ash and debris after combustion to fall into the material guiding channel 43 through the ash collection hopper 42; The ash-vibrating assembly 44 includes a base 441 fixedly connected to the inner walls of both sides of the inner cleaning chamber 202, an eccentric block 442 rotatably disposed in the port of each base 441, a synchronous motor 449 fixedly connected to the side of each base 441 and connected to the main shaft and the eccentric block 442, a guide column cylinder 443 vertically fixedly connected to both sides of the outer cover 41, a vibrating rod 444 movably disposed in the guide column cylinder 443 and a compression spring 445 sleeved on the vibrating rod 444, one end of the vibrating rod 444 protruding from the guide column cylinder 443 and fixedly connected at that end. A striking ball 446 is attached to the vibrating rod 444. The other end of the vibrating rod 444 has a compression notch 448 that cooperates with the eccentric block 442. A pressure plate 447 is fixedly fitted onto the portion of the vibrating rod 444 located inside the guide column cylinder 443. One end of a compression spring 445 is fixedly connected to the side of the pressure plate 447, and the other end is fixedly connected to the inner wall of the guide column cylinder 443. When the dust removal operation begins, the operator first opens the cleaning door 22, places the collection box inside the outer cleaning chamber 201, and connects the sealing cover 431 at the end of the guide channel 43 to the dust collection port of the collection box. Then, the valve on the dust removal port 231 is opened, and a pair of synchronous motors 449 inside the inner cleaning chamber 202 are started. The motor spindle drives the eccentric block 442 to rotate at a constant speed, causing the vibrating rod 444 to continuously compress the compression spring 445 under the intermittent compression action of the eccentric block 442, generating a rebound force. This, in turn, causes the striking ball 446 at the end to continuously and intermittently strike the ash removal port 231, promoting the smooth fall of ash. The ash falls into the guide channel 43 through the ash collection hopper 42 and finally enters the collection box. This structural design effectively prevents the ash removal port 231 from clogging and significantly reduces the difficulty of manual cleaning.

[0023] In this embodiment, there is also a preferred embodiment in which a sleeve 5 is slidably provided inside the port of the ash collection hopper 42, and the outer wall of the sleeve 5 is sealed and fitted to the inner wall of the ash collection hopper 42 by a sealing ring 51. The inner cleaning chamber 202 is horizontally fixedly connected to a pressure plate 52. Both sides of the pressure plate 52 are vertically fixedly connected to lifting cylinders 53. The piston rods of the lifting cylinders 53 are fixedly connected to both sides of the sleeve 5. The material guide channel 43 and the ash collection hopper 42 are fixedly connected to the pressure plate 52 with screws. The port of the material guide channel 43 and the port of the ash collection hopper 42 are connected. When repairing or replacing parts of the dust removal mechanism 4, the inspection door panel 25 can be removed first, and the lifting cylinder 53 can be activated to drive its rod to retract, causing the sleeve 5 to detach from the outer cover 41 and the dust removal port 231, allowing the sleeve 5 to retract into the ash collection hopper 42. This design facilitates disassembly and replacement operations in confined spaces. Disassembled parts can be temporarily placed on the pressure plate 52, making the overall process simple and efficient.

[0024] In this embodiment, there is also a preferred implementation: the cleaning port of the inner cleaning cavity 202 is located on the side, and a second magnetic strip 31 is fixedly connected to the outside of the cleaning port. The dust cleaning chamber 21 is rotatably provided with a cleaning door 22 on the side of the cleaning port. A first magnetic strip 3 that is attached to the inner edge of the cleaning door 22 is fixedly connected to the edge of the inner side of the cleaning door 22, and is used for the adsorption connection of the cleaning door 22 to close and open.

[0025] In this embodiment, in order to facilitate the maintenance of the ash cleaning mechanism 4 in the inner cleaning cavity 202, an inspection port is provided on the furnace body 2 below the furnace door 24. An inspection door plate 25 is fixedly connected to the inspection port by fastening screws. When maintenance is needed, the inspection door plate 25 can be removed.

[0026] In this embodiment, it should also be noted that the hot blast stove in the application document also includes... Furthermore, it should be noted that this application document only addresses the shortcomings of existing hot blast stoves in terms of low ash removal efficiency and insufficient maintenance convenience, and does not involve other aspects. By designing the ash removal mechanism 4, it effectively prevents clogging of the ash removal port, reduces the difficulty of manual cleaning, and solves the problems in the background technology.

[0027] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: In practical application of this invention on site, the operator first opens the furnace door 24, puts the biomass pellet raw material into the combustion chamber 23, and adds a combustion aid. Then, the external control system starts the aerodynamic system to assist combustion and heat generation, and delivers the heat to the target workshop or equipment. The above is the prior art, and the working principle has been disclosed. This embodiment will not be described in detail.

[0028] During the dust removal operation, the worker first opens the cleaning door 22, places the collection box inside the outer cleaning chamber 201, and connects the sealing cover 431 at the end of the guide channel 43 to the dust collection port of the collection box. Then, the valve on the dust removal port 231 is opened, and a pair of synchronous motors 449 inside the inner cleaning chamber 202 are started. The motor shaft drives the eccentric block 442 to rotate at a uniform speed, causing the vibrating rod 444 to continuously compress the compression spring 445 under the intermittent compression action of the eccentric block 442, generating a rebound force. This, in turn, causes the striking ball 446 at the end to continuously and intermittently strike the dust removal port 231, promoting the smooth fall of dust. The dust falls into the guide channel 43 through the dust collection hopper 42 and finally into the collection box. This structural design effectively prevents the dust removal port 231 from clogging and significantly reduces the difficulty of manual cleaning.

[0029] Furthermore, when repairing or replacing parts of the dust removal mechanism 4, the inspection door panel 25 can be removed first, and the lifting cylinder 53 can be activated to drive the rod to retract, causing the sleeve 5 to detach from the outer cover 41 and the dust removal port 231, allowing the sleeve 5 to retract into the dust collection hopper 42. This design facilitates disassembly and replacement operations in confined spaces, and the disassembled parts can be temporarily placed on the pressure plate 52, making the overall process simple and efficient.

[0030] The above-disclosed embodiments are only a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving controllable temperature hot air furnace, comprising a base (1) and a furnace body (2) fixedly connected to the base (1); Its features are, The furnace body (2) includes a combustion chamber (23) and a cleaning chamber (21). The cleaning chamber (21) is provided with an outer cleaning cavity (201) and an inner cleaning cavity (202) that are interconnected. The cleaning port (231) of the combustion chamber (23) is located at the top of the inner cleaning cavity (202). The dust removal mechanism (4) includes an outer cover (41) fixedly sleeved on the dust removal port (231), a dust collection hopper (42) disposed below the outer cover (41), a material guide channel (43) inclinedly fixedly connected to the bottom of the dust collection hopper (42), and a dust vibration assembly (44) disposed on the top surface of the inner cleaning cavity (202). The end of the material guide channel (43) extends into the outer cleaning cavity (201), and its end is fixedly connected to a sealing cover (431). The ash-vibrating assembly (44) acts on the ash-cleaning port (231) to allow the ash after combustion to fall into the material guide channel (43) through the ash collection hopper (42).

2. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 1, characterized in that, The ash-vibrating assembly (44) includes a base (441) fixedly connected to the inner walls of both sides of the inner cleaning chamber (202), an eccentric block (442) rotatably disposed in the port of each base (441), a synchronous motor (449) fixedly connected to the side of each base (441) and connected to the main shaft and the eccentric block (442), a guide column (443) vertically fixedly connected to the outer sides of the outer cover (41), a vibrating rod (444) movably disposed in the guide column (443) and a compression spring (445) sleeved on the vibrating rod (444), one end of the vibrating rod (444) passing through the guide column (443) and a striking ball (446) fixedly connected at that end.

3. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 2, characterized in that, The other end of the vibrating rod (444) is provided with a pressing notch (448) that cooperates with the eccentric block (442). The part of the vibrating rod (444) located inside the guide column (443) is fixedly fitted with a pressure plate (447). One end of the compression spring (445) is fixedly connected to the side of the pressure plate (447), and the other end is fixedly connected to the inner wall of the guide column (443).

4. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 2, characterized in that, A sleeve (5) is slidably disposed inside the port of the ash collection hopper (42), and the outer wall of the sleeve (5) is sealed to the inner wall of the ash collection hopper (42) by a sealing ring (51).

5. A high-efficiency, energy-saving, temperature-controlled hot air furnace according to claim 4, characterized in that, A pressure plate (52) is horizontally fixedly connected inside the inner cleaning cavity (202). A lifting cylinder (53) is vertically fixedly connected to both sides of the pressure plate (52). The top of the piston rod of the lifting cylinder (53) is fixedly connected to both sides of the sleeve (5). The material guide channel (43) and the ash collection hopper (42) are fixedly connected to the pressure plate (52) by screws. The port of the material guide channel (43) and the port of the ash collection hopper (42) are connected.

6. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 1, characterized in that, The inner cleaning chamber (202) has a cleaning port on its side. A second magnetic strip (31) is fixedly connected to the outer periphery of the cleaning port. The dust removal chamber (21) has a cleaning door (22) on one side corresponding to the cleaning port, which is rotatably provided by a hinge. A first magnetic strip (3) that attracts the second magnetic strip (31) is fixedly connected to the inner edge of the cleaning door (22).

7. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 1, characterized in that, The ash removal port (231) of the combustion chamber (23) is located on the inner top surface of the inner cleaning chamber (202), and a collection box is provided in the outer cleaning chamber (201).

8. The high-efficiency energy-saving controllable temperature hot air furnace according to claim 1, characterized in that, The furnace body (2) has an inspection port located below the furnace door, and an inspection door panel (25) is fixedly connected to the inspection port by fastening screws.

Images