Direct-fired hot blast stove capable of quickly heating

Abstract

The utility model discloses a direct-fired hot-blast stove capable of heating quickly, which relates to the technical field of direct-fired hot-blast stoves and comprises a direct-fired hot-blast stove body, an air inlet pipe is arranged on the direct-fired hot-blast stove body, the top of the air inlet pipe is connected with an air inlet barrel, a fixing rod is mounted below the inner wall of the air inlet barrel, and a fan is arranged on the fixing rod. The output end of the fan is connected with fan blades, two sets of supporting blocks are further installed on the inner wall of the air inlet barrel, a filter screen is arranged on the two sets of supporting blocks, a cleaning unit is arranged on the upper surface of the filter screen and comprises a cleaning scraper, and an opening matched with the cleaning scraper is formed in the outer wall of the air inlet barrel. The fan accelerates the air inlet speed of the air inlet pipe, the direct-fired hot-blast stove can be rapidly heated, the filter screen can filter impurities in air during air inlet, the combustion effect of the direct-fired hot-blast stove is improved, the cleaning unit can clean the impurities on the filter screen, the impurities can be cleaned in real time while air inlet is not affected, and normal work of the direct-fired hot-blast stove is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of direct-fired hot blast stoves, and particularly relates to a direct-fired hot blast stove capable of rapidly heating up. Background Technique

[0002] A direct-fired hot blast stove is a device that heats air by directly burning fuel (such as natural gas, diesel, or coal). Its working principle is to burn fuel in the furnace to generate heat, and the hot air is sent out by a blower, thereby achieving rapid and effective air heating. This device is commonly used in places such as workshops and warehouses that require large-area heating, and has the advantages of fast heating speed and high efficiency.

[0003] The direct-fired hot blast stove with the publication number of CN220119577U proposes a direct-fired hot blast stove with adjustable furnace cooling air. By starting the electric push rods on multiple support plates, the electric push rods push the articulated internal gear ring to rotate. When the internal gear ring rotates, it drives multiple meshing gears to rotate. When the gears rotate, they drive the fixedly connected rotating rod to rotate, and then the angle of the air guide plate changes, so that when the cooling air contacts the air guide plate, the cooling air can be guided.

[0004] The direct-fired hot blast stove of the above patent only sucks air naturally through the air inlet duct. The oxygen content in the direct-fired hot blast stove is limited, and it is not convenient for the direct-fired hot blast stove to rapidly heat up. Moreover, the air inlet duct is open, and impurities in the outside air are likely to enter the direct-fired hot blast stove, and the impurities will affect the combustion effect of the direct-fired hot blast stove. Therefore, we propose a direct-fired hot blast stove capable of rapidly heating up. Content of the Utility Model

[0005] The purpose of the utility model is to provide a direct-fired hot blast stove capable of rapidly heating up, so as to solve the problems that the direct-fired hot blast stove in the above background technique is not convenient for rapidly heating up, and impurities in the outside air are likely to enter the direct-fired hot blast stove, thereby affecting the combustion effect of the direct-fired hot blast stove.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A direct-fired hot blast stove capable of rapidly heating up includes a direct-fired hot blast stove main body. A burner is installed at the left end of the direct-fired hot blast stove main body, and an air inlet pipe is provided on the direct-fired hot blast stove main body and is connected in a communicating manner. An air inlet cylinder is connected to the top of the air inlet pipe. A fixed rod is installed below the inner wall of the air inlet cylinder. A blower is provided on the fixed rod, and the output end of the blower is connected to a fan blade;

[0008] Two groups of support blocks are also installed on the inner wall of the air inlet pipe. A filter screen is provided on the two groups of support blocks, and a cleaning unit is provided on the upper surface of the filter screen. The cleaning unit includes a cleaning scraper. The bottom of the cleaning scraper is attached to the upper surface of the filter screen. An opening adapted to the cleaning scraper is formed on the outer wall of the air inlet pipe.

[0009] Furthermore: The cleaning unit further includes a fixing frame. The fixing frame is connected to the outer side wall of the air inlet pipe, and a reduction motor is provided on the outer wall of the fixing frame. The output end of the reduction motor is connected to a lead screw, and a threaded block is threadedly connected to the lead screw. Sliding connectors are provided on both side walls of the threaded block. Through grooves are formed in a penetrating manner on both side walls of the fixing frame, and the through grooves are slidably connected to the sliding connectors. Moving push rods are connected to the outer walls of the two sliding connectors, and the other ends of the moving push rods are connected to the cleaning scraper.

[0010] Furthermore: A chassis is provided at the bottom of the main body of the direct-fired hot blast stove.

[0011] Furthermore: Iron sheets are provided on both groups of support blocks, and a magnet layer adapted to the iron sheets is provided on the lower surface of the filter screen.

[0012] Furthermore: A backing plate is provided on the lower surface of the chassis, and a damping pad is provided on the lower surface of the backing plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] Through the operation of the fan of the present utility model, the fan blades can be driven to rotate, accelerating the air inlet speed of the air inlet pipe, increasing the oxygen content in the direct-fired hot blast stove, enabling the direct-fired hot blast stove to quickly heat up. The filter screen can filter impurities in the air during air inlet, preventing impurities from entering the direct-fired hot blast stove and improving the combustion effect of the direct-fired hot blast stove; through the operation of the reduction motor on the cleaning unit, the lead screw can be driven to rotate. After the threaded block threadedly connected to the lead screw is slidably limited by the through groove and the sliding connector, the two moving push rods can drive the cleaning scraper to move in the opening, and the movement of the cleaning scraper realizes the rapid cleaning of the blocked impurities on the filter screen. While not affecting air inlet, the impurities can be cleaned in real time without affecting the normal operation of the direct-fired hot blast stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the air inlet pipe of the present utility model;

[0017] Figure 3 is a front structural sectional view of the air inlet pipe of the present utility model.

[0018] In the figure: 1. Main body of direct-fired hot blast stove; 2. Underframe; 3. Burner; 4. Air inlet pipe; 5. Air inlet cylinder; 6. Filter screen; 7. Opening; 8. Cleaning unit; 800. Fixed frame; 801. Reducing motor; 802. Lead screw; 803. Threaded block; 804. Through groove; 805. Sliding connecting piece; 806. Moving push rod; 807. Cleaning scraper; 9. Support block; 10. Fixed rod; 11. Fan; 12. Fan blade. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Embodiment 1:

[0021] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a direct-fired hot blast stove that can be quickly heated, including the main body 1 of the direct-fired hot blast stove. A burner 3 is installed at the left end of the main body 1 of the direct-fired hot blast stove, and an air inlet pipe 4 communicated is provided on the main body 1 of the direct-fired hot blast stove. The top of the air inlet pipe 4 is connected with an air inlet cylinder 5. A fixed rod 10 is installed below the inner wall of the air inlet cylinder 5. A fan 11 is provided on the fixed rod 10, and the output end of the fan 11 is connected with a fan blade 12. The main body 1 of the direct-fired hot blast stove is used in conjunction with the burner 3. This is an existing device, and the specific structure and working principle will not be elaborated here. Before use, the electrical ends of each electrical device are electrically connected to the external power supply and the electrical end of the controller. After the fan 11 is started, the fan blade 12 can be rotated. After the fan blade 12 rotates, negative pressure is generated in the air inlet cylinder 5, which speeds up the air inlet speed of the air inlet cylinder 5 and increases the oxygen content entering the direct-fired hot blast stove, enabling the direct-fired hot blast stove to be quickly heated;

[0022] Two groups of support blocks 9 are also installed on the inner wall of the air inlet cylinder 5. A filter screen 6 is provided on the two groups of support blocks 9, and a cleaning unit 8 is provided on the upper surface of the filter screen 6. The cleaning unit 8 includes a cleaning scraper 807. The bottom of the cleaning scraper 807 is attached to the upper surface of the filter screen 6. An opening 7 adapted to the cleaning scraper 807 is opened on the outer wall of the air inlet cylinder 5. The filter screen 6 can filter impurities in the air when the air enters, avoiding impurities from entering the direct-fired hot blast stove and improving the combustion effect of the direct-fired hot blast stove. The cleaning unit 8 can move the cleaning scraper 807 in the opening 7 and move on the upper surface of the filter screen 6. The movement of the cleaning scraper 807 realizes the rapid cleaning of the blocked impurities on the filter screen 6, can clean the impurities in real time without affecting the air inlet, and does not affect the normal operation of the direct-fired hot blast stove.

[0023] Among them, preferably, the cleaning unit 8 further includes a fixing frame 800. The fixing frame 800 is connected to the outer side wall of the air inlet cylinder 5, and a reduction motor 801 is provided on the outer wall of the fixing frame 800. The output end of the reduction motor 801 is connected to a lead screw 802, and a threaded block 803 is threadedly connected to the lead screw 802. Sliding connectors 805 are provided on both side walls of the threaded block 803. Through grooves 804 are provided through the two side walls of the fixing frame 800, and the through grooves 804 are slidably connected to the sliding connectors 805. Moving push rods 806 are connected to the outer walls of the two groups of sliding connectors 805, and the other ends of the moving push rods 806 are connected to a cleaning scraper 807;

[0024] The fixing frame 800 is fixedly connected to the outer wall of the air inlet cylinder 5. The cross sections of the through grooves 804 and the sliding connectors 805 are both rectangular, and the threaded block 803 is fixedly connected to the two groups of sliding connectors 805. The sliding connectors 805 are fixedly connected to the moving push rods 806. The operation of the reduction motor 801 can drive the lead screw 802 to rotate forward or backward. After the threaded block 803 threadedly connected to the lead screw 802 is slidably limited by the through grooves 804 and the sliding connectors 805, the two groups of moving push rods 806 drive the cleaning scraper 807 to move, and the movement of the cleaning scraper 807 realizes the cleaning of impurities on the filter screen 6.

[0025] Preferably, a bottom frame 2 is provided at the bottom of the direct-fired hot blast stove main body 1; the bottom frame 2 plays a supporting role for the direct-fired hot blast stove main body 1.

[0026] Preferably, iron sheets are provided on both groups of support blocks 9, and a magnet layer adapted to the iron sheets is provided on the lower surface of the filter screen 6; there is an attractive force between the iron sheets and the magnet layer, so that the filter screen 6 is magnetically connected in the air inlet cylinder 5, which is convenient for subsequent disassembly, installation and replacement.

[0027] Embodiment 2:

[0028] Referring to Figure 1 , what is different about this embodiment from the first embodiment is that a cushion plate is provided on the lower surface of the bottom frame 2, and a damping pad is provided on the lower surface of the cushion plate; the cushion plate and the damping pad can increase the friction force with the working ground and improve the stability of the entire direct-fired hot blast stove during use.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A directly fired hot blast stove capable of rapid heating up, comprising a directly fired hot blast stove main body (1), a burner (3) is installed at the left end of the directly fired hot blast stove main body (1), and an air inlet pipe (4) which is connected and arranged is arranged on the directly fired hot blast stove main body (1), and is characterized in that: The top of the air inlet pipe (4) is connected to an air inlet cylinder (5). A fixing rod (10) is installed below the inner wall of the air inlet cylinder (5). A blower (11) is provided on the fixing rod (10), and the output end of the blower (11) is connected to a fan blade (12). Two groups of support blocks (9) are also installed on the inner wall of the air inlet cylinder (5). A filter screen (6) is provided on the two groups of support blocks (9). A cleaning unit (8) is provided on the upper surface of the filter screen (6). The cleaning unit (8) includes a cleaning scraper (807). The bottom of the cleaning scraper (807) is attached to the upper surface of the filter screen (6). An opening (7) adapted to the cleaning scraper (807) is formed on the outer wall of the air inlet cylinder (5).

2. The direct-fired hot blast stove capable of rapid heating according to claim 1, characterized in that: The cleaning unit (8) further includes a fixing frame (800). The fixing frame (800) is connected to the outer side wall of the air inlet cylinder (5), and a reduction motor (801) is provided on the outer wall of the fixing frame (800).

3. The direct-fired hot blast stove capable of rapid heating up according to claim 2, wherein: The output end of the reduction motor (801) is connected to a lead screw (802). A threaded block (803) is threadedly connected to the lead screw (802). Sliding connectors (805) are provided on both side walls of the threaded block (803).

4. A direct-fired hot blast stove capable of rapid temperature rise according to claim 3, characterized in that: Through grooves (804) are formed through both side walls of the fixing frame (800). The through grooves (804) are slidably connected to the sliding connectors (805). Moving push rods (806) are connected to the outer walls of the two groups of sliding connectors (805), and the other ends of the moving push rods (806) are connected to the cleaning scraper (807).

5. A direct-fired hot blast stove capable of rapid temperature rise according to claim 1, characterized in that: A bottom frame (2) is provided at the bottom of the direct-fired hot blast stove main body (1).

6. The direct-fired hot blast stove capable of rapid temperature rise according to claim 1, characterized in that: Iron sheets are provided on both groups of support blocks (9). A magnet layer adapted to the iron sheets is provided on the lower surface of the filter screen (6).

7. A direct-fired hot blast stove capable of rapid temperature rise according to claim 5, characterized in that: A cushion plate is provided on the lower surface of the bottom frame (2), and a damping pad is provided on the lower surface of the cushion plate.

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