Fuel feeding device for combustion chamber of hot blast stove

Abstract

The utility model discloses a fuel feeding device for a hot-blast stove combustion chamber, which relates to the technical field of hot-blast stove devices and comprises a hot-blast stove body, a shell is fixedly connected to one side of the hot-blast stove body, a feed hopper is fixedly connected to the upper portion of the shell, the interior of the shell is hollow, a rotating plate is rotatably connected to the bottom of the shell, and a sliding groove is formed in the shell. A motor is fixedly connected to the end, away from the hot-blast stove body, of the shell, a filter screen is arranged in the shell and slidably connected with the shell through a sliding groove, and a handle is fixedly connected to one side of the filter screen. According to the biomass fuel feeding device, biomass fuel can be effectively crushed to a proper size through work of the crushing component, so that the combustion efficiency of the biomass fuel in the combustion chamber is improved, feeding can be conducted on the combustion chamber in time through the control component, and therefore the problem that the labor intensity of manual feeding is large is solved; and the biomass fuel with overlarge volume can be quickly guided out through the work of the adjusting component, so that the working efficiency of the hot blast stove can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -blast stove device technical field, concretely relates to a fuel feeding device for hot -blast stove combustion chamber. BACKGROUND

[0002] Hot -blast stove is a kind of equipment by burning release heat to complete heating, heat preservation effect. It burns according to certain condition, and heat is transmitted by the form of steam or hot air, can heat and transmit energy to machine or material. Hot -blast stove is widely used in industrial drying, food heating, papermaking, commercial and civil heating system and industrial heat treatment etc. field, by heating air, provide stable high temperature environment, satisfy the production and living needs of different industries.

[0003] Among them, small hot -blast stove is mainly by furnace base and furnace shell (provide support and protection), combustion system (include combustion chamber, ignition system and multiple fuel adaptability device), heat exchange system (with heat exchanger as core realizes heat exchange), exhaust gas dust removal system (including flue, chimney and dust collector, responsible for discharging purified flue gas), air blower and combustion air fan (is used to improve efficiency and ensure that fuel is fully combusted respectively), various valves and compensators (control fluid flow, absorb displacement stress) and control system (monitoring adjustment operating state) etc. Key parts are composed.

[0004] But small hot -blast stove usually uses biomass fuel as fuel to generate hot air for various heating and drying process. However, this hot -blast stove has some problems in fuel filling, which needs to be added frequently by manual, this will increase the labor intensity of operator, at the same time, the size of biomass fuel also affects the combustion efficiency of hot -blast stove, and the combustion of oversized biomass fuel will lead to incomplete combustion, so that the working efficiency of hot -blast stove is not high. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a fuel feeding device for hot -blast stove combustion chamber to solve the problems in the above background art.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] A fuel feeding device for hot -blast stove combustion chamber, comprising:

[0008] Hot -blast stove body, one side of hot -blast stove body is fixedly connected with shell, the upper portion of shell is fixedly connected with feed hopper, the inside of shell is hollow, the bottom of shell is rotatably connected with rotating plate, sliding slot is arranged on the shell, the end of shell away from hot -blast stove body is fixedly connected with motor, the inside of shell is provided with filter screen, filter screen is slidably connected with shell through sliding slot, the side of filter screen is fixedly connected with handle, the side of shell is fixedly connected with control panel;

[0009] The crushing component is located inside the shell and is used to crush the biomass fuel;

[0010] The control component is located below the crushing component and is used to control the feeding of the biomass fuel,

[0011] The adjusting component is located below the shell and is used to adjust the angle of the rotating plate.

[0012] (wherein, the hot blast stove is a mature technology in the prior art field, and its design principle, structural details and operation process have been optimized through long-term practice and optimization, forming a stable and reliable technical system. Therefore, the basic principles, structural components and conventional operation modes of the hot blast stove are not described in detail in this article), when fuel needs to be added, the biomass fuel is placed in the feed hopper located above the shell, and then the motor is started by controlling the control panel. The motor transmits power to the crushing component and the control component. The biomass fuel is crushed by the crushing component, so that the volume of the biomass fuel is not too large. The crushed biomass fuel passes through the control component to determine whether to feed the combustion chamber. Then the biomass fuel passing through the control component will fall on the filter screen. The function of the filter screen is to block some biomass fuel with too large volume, and the biomass fuel meeting the requirements will fall through the filter screen to the rotating plate and then roll down through the rotating plate. Then under the action of the baffle and the torsional spring, it rolls down to the combustion chamber. When no feeding is needed, the baffle separates the shell from the hot blast stove body under the action of the torsional spring. When it is necessary to clean the biomass fuel with too large volume on the filter screen, the angle of the rotating plate is adjusted by the adjusting component through the control panel controlling the cylinder, and then the filter screen is pulled out by the handle. At this time, the biomass fuel on the filter screen will fall to the outside through the rotating plate, and then can be reused. The biomass fuel can be effectively crushed to the appropriate size by the crushing component, thereby improving the combustion efficiency of the biomass fuel in the combustion chamber. The control component can timely feed the combustion chamber, thereby solving the problem of high labor intensity of manual feeding. The adjusting component can quickly guide the biomass fuel with too large volume out, thereby improving the working efficiency of the hot blast stove.

[0013] The further improvement of the technical scheme of the utility model lies in that the crushing component comprises a plurality of crushing rollers, the plurality of crushing rollers are symmetrically arranged and rotationally connected with the shell, one end of the crushing roller is fixedly connected with a gear, the symmetrically arranged gears are mutually engaged, and one of the crushing rollers is fixedly connected with a first pulley at one end close to the gear.

[0014] According to the technical scheme, when feeding is needed, the motor is started, the motor transmits power to the first pulley through the control component, the rotation of the first pulley drives the crushing roller fixedly connected with the first pulley to rotate, the crushing roller transmits power to the symmetrically arranged crushing roller through the meshing gears, and the biomass fuel in the feeding hopper is crushed to a proper size, thereby improving the working efficiency of the hot blast furnace.

[0015] Further improvement of the technical scheme of the utility model lies in that: the control component comprises a rotating roller, the rotating roller is rotatably connected with the shell, a plurality of grooves are formed on the rotating roller in the circumferential direction, guide blocks are symmetrically arranged in the shell, the guide blocks are fixedly connected with the shell, the rotating roller is used in cooperation with the guide blocks, a second pulley is fixedly connected to one end of the rotating roller, one end of the rotating roller close to the second pulley is fixedly connected with the output end of the motor, the first pulley and the second pulley are connected through a belt transmission, and the diameter of the first pulley is greater than that of the second pulley.

[0016] According to the technical scheme, when feeding is needed, the motor is started, the motor transmits power to the first pulley through the control component, the rotation of the first pulley drives the crushing roller fixedly connected with the first pulley to rotate, the crushing roller transmits power to the symmetrically arranged crushing roller through the meshing gears, and the biomass fuel in the feeding hopper is crushed to a proper size, thereby improving the working efficiency of the hot blast furnace.

[0017] Further improvement of the technical scheme of the utility model lies in that: the adjusting component comprises a cylinder, the cylinder is fixedly connected with the hot blast furnace body, a sliding groove is formed on one side of the rotating plate, a sliding block is arranged on the side of the rotating plate close to the sliding groove, the sliding block is slidably connected with the rotating plate through the sliding groove, and the output end of the cylinder is rotatably connected with the sliding block.

[0018] According to the technical scheme, when feeding is needed, the motor is started, the motor transmits power to the first pulley through the control component, the rotation of the first pulley drives the crushing roller fixedly connected with the first pulley to rotate, the crushing roller transmits power to the symmetrically arranged crushing roller through the meshing gears, and the biomass fuel in the feeding hopper is crushed to a proper size, thereby improving the working efficiency of the hot blast furnace.

[0019] Further improvement of the technical scheme of the utility model lies in that: the side, away from the sliding groove, of the rotating plate is provided with an anti-sticking layer, and the material of the anti-sticking layer is polytetrafluoroethylene.

[0020] According to the technical scheme, the anti-sticking layer made of polytetrafluoroethylene is arranged on the side of the rotating plate far from the chute, so that the probability of the biomass fuel powder adhering to the surface of the rotating plate is reduced, and the biomass fuel powder can enter the combustion chamber to be combusted.

[0021] Further improvement of the technical scheme of the utility model lies in that the shell is slidably connected with a bolt, and the filter screen is provided with a fixing hole.

[0022] According to the technical scheme, the filter screen is vibrated when the biomass fuel falls on the filter screen, which may cause displacement of the filter screen, the bolt is inserted into the fixing hole to fix the position of the filter screen and avoid displacement of the filter screen by cooperation of the bolt and the fixing hole.

[0023] Further improvement of the technical scheme of the utility model lies in that the shell and the hot blast stove body are fixedly connected with a reinforcing rib.

[0024] According to the technical scheme, the stability of the connection between the shell and the hot blast stove body is improved by arranging the reinforcing rib between the shell and the hot blast stove body.

[0025] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0026] 1. The utility model provides a fuel feeding device for hot blast furnace combustion chamber, when needing to fill fuel, the biomass fuel is placed in the feed hopper above the shell, then the motor is started through the control panel control, the motor will transmit power to the crushing component and control component respectively. The biomass fuel is crushed by the crushing component, so that the volume of biomass fuel is not too large, the biomass fuel after crushing will pass through the control component, whether the control component decides to feed the combustion chamber, then the biomass fuel after passing through the control component will fall on the filter screen, the function of the filter screen is to block some biomass fuel with too large volume, the biomass fuel meeting the requirement will fall on the rotating plate through the filter screen, then under the action of the baffle and the torsional spring, the biomass fuel falls into the combustion chamber, when not needing to feed, under the action of the torsional spring, the baffle isolates the shell and the hot blast furnace body. When needing to clean the biomass fuel with too large volume on the filter screen, the angle of the rotating plate is adjusted through the control panel control cylinder through the adjusting component, then the filter screen is pulled out through the handle, at this time the biomass fuel on the filter screen will fall to the outside through the rotating plate, and can be reused, the biomass fuel can be effectively crushed to the appropriate size through the work of the crushing component, so as to improve the combustion efficiency of the biomass fuel in the combustion chamber, the combustion chamber can be fed in time through the control component, so as to solve the problem of high labor intensity of manual feeding, the biomass fuel with too large volume can be quickly guided out through the work of the adjusting component, so as to improve the working efficiency of the hot blast furnace.

[0027] 2. The utility model provides a fuel feeding device for hot blast furnace combustion chamber, when needing to feed, the motor is started, the motor will transmit power to the first pulley through the control component, the first pulley rotates and drives the fixedly connected crushing roller to rotate, because one end of the crushing roller is fixedly connected with the gear and the symmetrical gears are all in the meshing state, so the crushing roller will transmit power to the symmetrical crushing rollers through the meshing gears, so as to crush the biomass fuel in the feed hopper to the appropriate size, so as to improve the working efficiency of the hot blast furnace.

[0028] 3. The utility model provides a fuel feeding device for hot blast furnace combustion chamber, when needing to feed, the motor is controlled to work through the controller, the motor drives the fixedly connected rotating roller at the output end to rotate, the rotating roller rotates and drives the fixedly connected second pulley to rotate, the second pulley drives the first pulley to rotate through the belt, the biomass fuel crushed through the crushing roller will enter the groove of the rotating roller, at this time the rotating roller rotates and cooperates with the matching block through the groove to convey the biomass fuel to the filter screen, so that the biomass fuel falls into the combustion chamber through the filter screen, thereby achieving the purpose of feeding, the labor intensity of the staff can be reduced through the motor driving the rotating roller to work, thereby improving the working efficiency of the hot blast furnace. ACCURACY OF DRAWINGS

[0029] The utility model makes further illustration in combination with the drawings.

[0030] Figure 1 It is the first structure schematic drawing of the utility model;

[0031] Figure 2 It is the second structure schematic drawing of the utility model;

[0032] Figure 3 It is the cross section structure schematic drawing of the utility model;

[0033] Figure 4 It is the third structure schematic drawing of the utility model;

[0034] Figure 5 It is the A place enlarged structure schematic drawing of the utility model;

[0035] In the drawing: 1, hot blast furnace body; 2, shell; 3, feed hopper; 4, rotating plate; 5, sliding groove; 6, motor; 7, filter screen; 8, handle; 9, control panel; 10, crushing roller; 11, gear; 12, first pulley; 13, rotating roller; 14, recess; 15, guide block; 16, second pulley; 17, air cylinder; 18, sliding slot; 19, sliding block; 20, anti-sticking layer; 21, bolt; 22, fixed hole; 23, reinforcing rib. DETAILED DESCRIPTION

[0036] The utility model makes further detailed illustration in combination with the embodiment:

[0037] Embodiment

[0038] As Figure 1 and Figure 2 Indicated, the utility model provides a fuel feeding device for hot blast furnace combustion chamber, include:

[0039] Hot blast furnace body 1, one side of hot blast furnace body 1 is fixedly connected with shell 2, and the upper portion of shell 2 is fixedly connected with feed hopper 3, and the inside of shell 2 is hollowly arranged, and the bottom of shell 2 is rotatably connected with rotating plate 4, and sliding groove 5 is set up on shell 2, and the end of shell 2 away from hot blast furnace body 1 is fixedly connected with motor 6, and filter screen 7 is arranged in the inside of shell 2, and filter screen 7 is slidably connected with shell 2 by sliding groove 5, and the side of filter screen 7 is fixedly connected with handle 8, and the side of shell 2 is fixedly connected with control panel 9;

[0040] Crushing component, crushing component is located in the inside of shell 2, and crushing component is used to break the biomass fuel;

[0041] Control component, control component is located below crushing component, and control component is used to control biomass fuel to load,

[0042] An adjusting component is arranged below the shell 2, and the adjusting component is used to adjust the angle of the rotating plate 4.

[0043] In the embodiment, (wherein the hot blast stove is a mature technology in the prior art field, and the design principle, structural details and operation process thereof have been optimized through long-term practice, and a stable and reliable technical system is formed. Therefore, the basic principle, structural composition and conventional operation mode of the hot blast stove are not described in detail in this document), when fuel needs to be added, the biomass fuel is placed in the feeding hopper 3 above the shell 2, and then the motor 6 is started by controlling the control panel 9. The motor 6 will transmit power to the crushing component and the control component respectively. The biomass fuel is crushed by the crushing component, so that the volume of the biomass fuel is not too large. The crushed biomass fuel will pass through the control component, and the control component will determine whether to load the combustion chamber. Then the biomass fuel passing through the control component will fall on the filter screen 7. The filter screen 7 is used to block some biomass fuel with too large volume, and the biomass fuel meeting the requirements will fall through the filter screen 7 and then fall through the rotating plate 4. Then the biomass fuel will fall into the combustion chamber under the action of the baffle and the torsional spring. When no loading is needed, the baffle will isolate the shell 2 from the hot blast stove body 1 under the action of the torsional spring. When the biomass fuel with too large volume on the filter screen 7 needs to be cleaned, the angle of the rotating plate 4 is adjusted by the adjusting component through the control of the air cylinder 17 by the control panel 9, and then the filter screen 7 is pulled out by the handle 8. At this time, the biomass fuel on the filter screen 7 will fall to the outside through the rotating plate 4, and then can be reused. The biomass fuel can be effectively crushed to an appropriate size by the crushing component, thereby improving the combustion efficiency of the biomass fuel in the combustion chamber. The combustion chamber can be timely loaded by the control component, thereby solving the problem of high labor intensity of manual loading. The biomass fuel with too large volume can be quickly guided out by the adjusting component, thereby improving the working efficiency of the hot blast stove.

[0044] As shown in Figure 3 In the embodiment, preferably, the crushing component includes a plurality of crushing rollers 10, the crushing rollers 10 are symmetrically arranged and rotationally connected with the shell 2, one end of the crushing roller 10 is fixedly connected with a gear 11, the symmetrically arranged gears 11 are meshed with each other, and one of the crushing rollers 10 is fixedly connected with a first pulley 12 at the end close to the gear 11.

[0045] When the need to feed, start the motor 6, the motor 6 will be through the control component power transmission to the first pulley 12, the first pulley 12 rotation will drive the fixed connection with the broken roll 10 rotation, because the broken roll 10 one end fixed connection has gear 11 and symmetrical gear 11 are in meshing state, so the broken roll 10 will be through the meshing gear 11 power transmission to the symmetrical broken roll 10, so that the biomass fuel in the feed hopper 3 is broken work makes the biomass fuel is broken to the appropriate size, thereby improving the working efficiency of the hot blast stove.

[0046] As shown in Figure 3 , preferably, the control component includes a rotating roller 13, the rotating roller 13 is rotatably connected with the shell 2, the rotating roller 13 is provided with a plurality of grooves 14 along the circumferential direction, the shell 2 is provided with a guide block 15 symmetrically, the guide block 15 is fixedly connected with the shell 2, the rotating roller 13 is used in cooperation with the guide block 15, one end of the rotating roller 13 is fixedly connected with the second pulley 16, one end of the rotating roller 13 close to the second pulley 16 is fixedly connected with the output end of the motor 6, the first pulley 12 and the second pulley 16 are connected by belt transmission, the diameter of the first pulley 12 is greater than that of the second pulley 16.

[0047] When the need to feed, the controller controls the motor 6 to work, the motor 6 will drive the rotating roller 13 fixedly connected with the output end to rotate, the rotating roller 13 rotation will drive the second pulley 16 fixedly connected with it to rotate, the second pulley 16 drives the first pulley 12 to rotate through the belt, the biomass fuel broken by the broken roll 10 will enter the groove 14 of the rotating roller 13, at this time the rotating roller 13 rotates will be through the groove 14 and the cooperating block to cooperate to transport the biomass fuel to the filter screen 7, and then make the biomass fuel drop through the filter screen 7 into the combustion chamber to realize the purpose of feeding, the rotating roller 13 driven by the motor 6 can reduce the labor intensity of the workers, thereby improving the working efficiency of the hot blast stove.

[0048] As shown in Figure 4 and Figure 5 , preferably, the adjusting component includes a pneumatic cylinder 17, the pneumatic cylinder 17 is fixedly connected with the hot blast stove body 1, the side of the rotating plate 4 is provided with a sliding slot 18, the side of the rotating plate 4 close to the sliding slot 18 is provided with a sliding block 19, the sliding block 19 is slidably connected with the rotating plate 4 through the sliding slot 18, the output end of the pneumatic cylinder 17 is rotatably connected with the sliding block 19.

[0049] When the biomass fuel on the filter screen 7 needs to be cleaned out, the output end of the air cylinder 17 is controlled to move downward through the control panel 9, at this time, the slider 19 connected with the rotating plate 4 through the sliding groove 18 will move, and the angle between the output end of the air cylinder 17 and the slider 19 will also change, so that the angle of the rotating plate 4 can be changed, so that the biomass fuel on the filter screen 7 falls through the rotating plate 4 to the outside of the shell 2, so that the biomass fuel can be quickly discharged, and the working efficiency of the hot blast stove is improved.

[0050] As shown in Figure 5 , preferably, the side of the rotating plate 4 away from the sliding groove 18 is provided with a release layer 20, and the material of the release layer 20 is polytetrafluoroethylene.

[0051] Because some biomass fuel powder will be generated when the biomass fuel is crushed, by providing the release layer 20 made of polytetrafluoroethylene on the side of the rotating plate 4 away from the sliding groove 18, the probability of the biomass fuel powder adhering to the surface of the rotating plate 4 can be reduced, so that the biomass fuel powder can enter the combustion chamber for combustion.

[0052] As shown in Figure 5 , preferably, the shell 2 is slidingly connected with a latch 21, and the filter screen 7 is provided with a fixing hole 22, and the latch 21 is used in cooperation with the fixing hole 22.

[0053] Because the biomass fuel will vibrate the filter screen 7 when falling onto the filter screen 7, which may cause the filter screen 7 to displace, by providing the latch 21 and the fixing hole 22 on the filter screen 7 to cooperate, the latch 21 can be inserted into the fixing hole 22 to fix the position of the filter screen 7 to avoid displacement of the filter screen 7.

[0054] As shown in Figure 1 , preferably, the shell 2 and the hot blast stove body 1 are fixedly connected with a reinforcing rib 23.

[0055] By providing the reinforcing rib 23 between the shell 2 and the hot blast stove body 1, the stability of the connection between the shell 2 and the hot blast stove body 1 can be improved.

[0056] The working principle of the fuel feeding device for the combustion chamber of the hot blast stove will be described in detail below.

[0057] As shown in Figure 1 - Figure 5When the biomass fuel needs to be added, it is placed in the feeding hopper 3 above the shell 2, and then the motor 6 is started by controlling the control panel 9. The motor 6 transmits power to the crushing part and the control part respectively. The biomass fuel is crushed by the crushing part so that the volume of the biomass fuel is not too large. The crushed biomass fuel passes through the control part to determine whether to load the combustion chamber. Then the biomass fuel passing through the control part falls on the filter screen 7. The filter screen 7 functions to block some biomass fuel with too large a volume, and the biomass fuel meeting the requirements falls through the filter screen 7 to the rotating plate 4 and then rolls down to the combustion chamber through the rotating plate 4. When it is not necessary to load, the baffle separates the shell 2 from the hot blast stove body 1 under the action of the torsional spring. When it is necessary to clean the biomass fuel with too large a volume on the filter screen 7, the angle of the rotating plate 4 is adjusted by the air cylinder 17 through the adjusting part, and then the filter screen 7 is pulled out by the handle 8. At this time, the biomass fuel on the filter screen 7 falls through the rotating plate 4 to the outside, and then can be reused. When it is necessary to load, the motor 6 is started, and the motor 6 transmits power to the first pulley 12 through the control part. The rotation of the first pulley 12 drives the crushing roller 10 fixedly connected thereto to rotate. Since one end of the crushing roller 10 is fixedly connected with the gear 11 and the symmetrically arranged gears 11 are in meshing state, the crushing roller 10 transmits power to the symmetrically arranged crushing rollers 10 through the meshing gears 11, so that the biomass fuel in the feeding hopper 3 is crushed to an appropriate size. When it is necessary to load, the motor 6 is controlled to work by the controller. The motor 6 drives the rotating roller 13 fixedly connected to the output end thereof to rotate. The rotation of the rotating roller 13 drives the second pulley 16 fixedly connected thereto to rotate. The second pulley 16 drives the first pulley 12 to rotate through the belt. The biomass fuel crushed by the crushing roller 10 enters the groove 14 of the rotating roller 13. At this time, the rotation of the rotating roller 13 transmits the biomass fuel to the filter screen 7 through the groove 14 and the matching block, so that the biomass fuel falls into the combustion chamber through the filter screen 7 to achieve the purpose of loading. When it is necessary to clean the biomass fuel on the filter screen 7, the output end of the air cylinder 17 is moved downward by controlling the control panel 9. At this time, the slider 19 slidingly connected with the rotating plate 4 through the sliding groove 18 is moved, and the angle between the output end of the air cylinder 17 and the slider 19 is changed, so that the angle of the rotating plate 4 is changed to make the biomass fuel on the filter screen 7 fall through the rotating plate 4 to the outside of the shell 2. Since some biomass fuel powder is generated during the crushing of the biomass fuel, the anti-sticking layer 20 made of polytetrafluoroethylene is arranged on the side of the rotating plate 4 away from the sliding groove 18 to reduce the probability of the biomass fuel powder adhering to the surface of the rotating plate 4, so that the biomass fuel powder can enter the combustion chamber for combustion.Because the biomass fuel will make the filter screen 7 vibrate when falling on the filter screen 7, thereby possibly causing the filter screen 7 to displace, by setting the cooperation of the bolt 21 and the fixing hole 22 on the filter screen 7, the bolt 21 can be inserted into the fixing hole 22 to fix the position of the filter screen 7 to avoid the displacement of the filter screen 7. By setting the reinforcing ribs 23 between the shell 2 and the hot blast stove body 1, the stability of the connection between the shell 2 and the hot blast stove body 1 can be improved.

[0058] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A fuel feeding device for the combustion chamber of a hot blast stove, Its characteristics include: A hot air furnace body (1) is provided. A shell (2) is fixedly connected to one side of the hot air furnace body (1). A feed hopper (3) is fixedly connected to the top of the shell (2). The shell (2) is hollow inside. A rotating plate (4) is rotatably connected to the bottom of the shell (2). A sliding groove (5) is provided on the shell (2). A motor (6) is fixedly connected to one end of the shell (2) away from the hot air furnace body (1). A filter screen (7) is provided inside the shell (2). The filter screen (7) is slidably connected to the shell (2) through the sliding groove (5). A handle (8) is fixedly connected to one side of the filter screen (7). A control panel (9) is fixedly connected to one side of the shell (2). A crushing component, located inside the shell (2), is used to crush biomass fuel; A control unit, located below the crushing unit, is used to control the feeding of biomass fuel. An adjustment component is located below the housing (2) and is used to adjust the angle of the rotating plate (4).

2. A fuel feeding device for a hot blast stove combustion chamber according to claim 1, characterized in that: The crushing component includes a plurality of crushing rollers (10), which are symmetrically arranged and rotatably connected to the housing (2). One end of each crushing roller (10) is fixedly connected to a gear (11), and the symmetrically arranged gears (11) mesh with each other. One of the crushing rollers (10) is fixedly connected to a first pulley (12) at the end near the gear (11).

3. A fuel feeding device for a hot blast stove combustion chamber according to claim 2, characterized in that: The control component includes a rotating roller (13), which is rotatably connected to the housing (2). The rotating roller (13) has several grooves (14) along the circumferential direction. Guide blocks (15) are symmetrically arranged inside the housing (2). The guide blocks (15) are fixedly connected to the housing (2). The rotating roller (13) and the guide blocks (15) are used in conjunction. A second pulley (16) is fixedly connected to one end of the rotating roller (13). The end of the rotating roller (13) near the second pulley (16) is fixedly connected to the output end of the motor (6). The first pulley (12) and the second pulley (16) are connected by belt drive. The diameter of the first pulley (12) is larger than that of the second pulley (16).

4. A fuel feeding device for a hot blast stove combustion chamber according to claim 3, characterized in that: The adjusting component includes a cylinder (17), which is fixedly connected to the hot air furnace body (1). A sliding groove (18) is provided on one side of the rotating plate (4), and a slider (19) is provided on the side of the rotating plate (4) near the sliding groove (18). The slider (19) is slidably connected to the rotating plate (4) through the sliding groove (18), and the output end of the cylinder (17) is rotatably connected to the slider (19).

5. A fuel feeding device for a hot blast stove combustion chamber according to claim 4, characterized in that: The rotating plate (4) is provided with an anti-stick layer (20) on the side away from the slide groove (18), and the anti-stick layer (20) is made of polytetrafluoroethylene.

6. A fuel feeding device for a hot blast stove combustion chamber according to claim 1, characterized in that: A pin (21) is slidably connected to the housing (2), and a fixing hole (22) is provided on the filter screen (7). The pin (21) and the fixing hole (22) are used together.

7. A fuel feeding device for a hot blast stove combustion chamber according to claim 1, characterized in that: The shell (2) is fixedly connected to the hot air furnace body (1) by a reinforcing rib (23).

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